19991233 Ver 1_Stormwater Info_20001102 (2)

3 ?1 ; l_r. v!3
S 1 ORMWA'TER MANAGEMENT PLAN
FOR
THE 'RESERVE at JORDAN LAKE
CHATHAM COUNTY
NORTH CAROLINA
Grou ln?.
p,
LAN E::) USE E\/AL.UATt ON
CI\/1 L EIVGI NE>EFZI NG
CONSTfRLJCTEON MANAGEMENT
P.O. BOX 219 - Pitt5boro, N.C. 273 1 2
Voice [phone] - fax [phone]

STORM WATER MANAGEMENT FLAN
FOR
THE PRESERVE at JORDAN LAKE
CHATHAM COUNTY
NORTH CAROLINA
Grou
p,
LAN ? USE ti=?/ALUATI ON
CI\/II. E"G1"1=1?F-=-' ItVG
CONSTRUCTION MANAGEMENT
P.O. 13OX 219 - Pitt5boro, N.C. 273 12
Voice (9 19) 545-2900 - fax [phone]
-fable of Contents
• Introduction and Executive Summary
• Water Quality Calculations- Impervious Calculations, Routing, Anti-flotation, Energy Dissipator, Emergency
5pillway
I . Wet Ponds - WQ- I , WQ-8
2. Extended Detention Wetland- WQ-1 1
3. Extended Dry Detention Ponds- WQ-2 thru WQ-7, WQ-9 thru WQ-10, WQ-1 2 thru WQ-14
Introduction
The 5tormwater Management Plan for the Preserve at Jordan Lake is based upon the following criteria:
• Impervious Coverage
The anticipated impervious coverage for the entire tract is 19.5%. The County watersupply
watershed limits impervious coverage to 24% within the critical and protected areas of the Jordan
Lake watershed. The specific breakout of impervious coverage is as follows:
Item Coverage Impervious Area
5 1 G Homesites 6500 sf max. / lot 3,354,000 sf
Roads 992,742sf
Sidewalks 81 GOO sf
Cart Paths 243,920 sf
Golf Clubhouse and Rec Area 250,000 sf
Golf Maintenance Facilities 100,000 sf
WVVTP and Utility Areas GO.000 sf
Total Impervious 5,082,262 sf
Total Tract Area 2G,044,2G3 sf
2
• Buffer Areas
A 50' buffer ( each side of stream ) has been provided along all perennial and intermittent streams
as indicated upon the most recent U5G5 map. Within these buffers, tree removal within 30 feet of
stream channels shall be restricted to road and golf cro5sinc3s. In any locations where the outer 20'
of the 50' buffer is disturbed. The buffer will be revegetated with turf and natural grass to maximize
pollutant trapping efficiency.
• Grass Collection Bowls
Where the golf course area is adjacent to streams, turf and wire grass collection bowls have been
located adijacent to all greens and culvert outlets to filter concentrated runoff prior to release into
existing streams. There will be no direct discharcge of golf course drainage piping to streams. In
areas where the golf course will cross a stream, a minimum 50' vegetated buffer will be re-
established on each side of the stream.
• 5tormwater Collection and Treatment in Significant Drainage Basins
The project location contains 3 significant drainage basins. In each of these locations either a wet
pond or extended detention wetland has been designed to treat 5tormwater runoff. Each of these
structures have been designed to remove 85% T55 according to the most recent version of the
NCDENR 5tormwater Best Practices Manual. The following chart provides a summary of the recluired
and provided volumes for each structure:
Basin Name Location I "storm Minimum Volume Read.
WQ-1 , Main stream near entrance 295,144 CF
WQ-8, 5tream exiting beyond bole # 10 75,524 CF
WQ- I I ` 5tream exiting at Hole # 13 45,467 CF
* WQ-1 I will be an extended detention wetland
Minimum Volume Provided
300,3 1 C CF
76,034 CF
52,027 CF
3
• 5tormwater Collection and Treatment in Minor Drainage Basins
In addition to the three mayor tributaries leaving the property, There are I I other smaller draws
where 5tormwater will be discharged from the project. At these locations, extended dry detention
structures are planned. 5tormwater management facilities shown below to remove at least 50%
T55 according to the most recent version of the NCDENR 5tormwater Best Practices Manual. The
following chart provides a summary of the required and provided volumes for each structure:
Basin Name Location 1 Storm Minimum Volume Regd_ Minimum Volume Provided

WQ-2, Near Lot 80 4,255 CF 6,065 CF
WQ-3, Near Lot 1 50 1 8,OG8 Cl' 10,253 CF
WQ-4, Near Lot 29 G, 149 CF 8,622 CF
WQ-5, Near Lot 22 6,392 CF 7,078 CF
WQ-G, Near dole #8 3,977 CF 4,721 Cr
WQ-7, Near Hole # 8 7,7 12 CF 9,339 CF
WQ-9, Near Hole # 12 7,922 CF 13,018 CF
WQ-10, Near Hole # 12 2,671 CF 3,803 CF
WQ-1 2, Near Hole # 14 10, 109 CF 14,472 CF
WQ-13, Near Hole # 15 2,017 CF 2, 1 52 CF
WQ-14, Near Hole # 15 1 2,476 CF 1 3,1 57 CF
4
IMPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY WET POND #1
# Lots s.f./Lot Total
275 6,500 1,787,500
Roadways 645,124 s.f.
Lots (houses, drives, etc.) 1,787,500 s.f,
Sidewalks 81,600 s.f.
Off-Site Impervious 92,200 s.f.
Total Impervious Area 2,606,424 s.f.
Total Area = 549 ac.
Impervious Area = 59.84 ac.
Impervious Percentage = 10.9%
The storage volume for the 1" storm (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.148
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 6.775575 ac.ft.
295,144 cf
295,144 c.f. storage required.
300,316 c.f. storage provided.
Appro)dmate Forebay Volume (20%) = 59,029
rermanent Pool Depth = 9 ft.
r A / DA ratio = 0.278 c.f.
equired Surface Area = 1.53 ac.
66,482 sf
Storage Provided
Incremental Total
Elev. Area (s.f.) Volume (c.f.) Volume (c.f.) Depth (ft.)

285.5 76,007
38,724 38,724
286 78,889 0.5
81,802 120,526
287 84,715 1.5
87,669 208,195
288 90,623 2.5
92,121 300,316
289 93,618 3.5
Drawdown calculation
Orifice required for 2-5 Day Drawdown
3.5 feet of storage so, say 1.75 feet of average head
Using a 6" orifice Q2-day= 216,006
Q = 1.25 cfs Q5-day= 540,016
So, a 6" Orifice will drawdown pond in 2.78 days
Whe following pages show the stormwater pond routing by the Rooney Malcom
=hainsaw method.
The Preserve at Jordan ' i
DESIGN REQUIREMENTS:
A. Pond Routing - Store 1" inch of impervious runoff
!Post-Development Runoff-- 10-myr
Drainage Area, (DA) = 549.00 acres
Overland Flow
Elevation of most remote point, (Hl) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation ofmost remote point, (Hl) = 602.0 feet
Elevation of point of design, (112) = 272.0 feet
Length of travel, (L) = 9800.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 34.1 minutes
Pipe Flow
Elevation of most remote point, (Hl) = 0.0 feet
Elevation of point of design, (1-12) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) _> 34.1 minutes
Intensity, (1) = 3.47 inchesthr
Area 1 (Impervious) = 59.84 acres
Area 2 (Pervious) = 489.16 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) _> 0.28
Peak Release Rate, (Qlo) _> 537 cfs
' 1
Drainage Area, (DA) = 549.00 acres
Time of Concentration, (Tc) _> 34.1 minutes
Intensity, (I) = 4.06 inches/hr
Composite Runoff Coefficient, (C) _> 0.28
Peak Release Rate, (Qv) 628 cfs
Post-Development
Drainage Area, (DA) = 549.00 acres
Time of Concentration, (Tc) _> 34.1 minutes
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Q100) _>
4.91 inches
0.28
759 cfs
s1131 110WZWaIcs%WQ1 revl02500 printed: IV25=1121 AM Pagel or 12
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (SO (cf) (cf) (ft) In (S) In (Z) Z est
285.50 76,007 - - - -
286.0 78,889 38,724 38,724 0.50 10.56 -0.69 0.57
288.0 90,623 169,512 208,236 2.50 12.25 0.92 2.51
290.0 102,690 193,313 401,549 4.50 12.90 1.50 4.46
292.0 115,086 217,776 619,325 6.50 13.34 1.87 6.53
check
2.5 207,511
4.5 405,205
6.5 615,882
Regression Output:
b= 1.14 (X Variable Coeff)
Ks° 73,110
Stage - Storage Equation is of the form: S = (KsxZ)
Normal Water Surface Elev. _
Water Surface Elev. (Q10) _
Water Surface Elev. (Qu) _
Water Surface Elev. (Q100) _
Barrel-
Dia. of Barrel =
Area of Barrel, (Ab) _
Pipe Length, (L)
Friction Coeff., (Kp) _
Inv. of Barrel =
Riser
Elev. of Riser Crest
Circular:
Dia. of Riser =
Weir Length=
Area of Riser =
285.5 feet
'_91.52 feet
291.:9 feet
_91.94 feet
6 inches
0.20 sf
163.0 feet
0.06720
272.00 feet
285.50 feet
6 inches
1.57 feet
0.20 sq. ft.
s:11311100021caks1WQ1rav102500 piMad 10/25/0011:21 AM Page 2 of 12
The Preserve at Jordan Lake - `VP `VQ#I
Rectangular.
Length of Riser = 0 feet
Width of Riser = 0 feet
Weir Length = 0 feet
Area of Riser = 0 sq.ft.
Width of Spillway (Approx.) _
Weir Coefficient =
Crest Elevation =
50 feet
3.0
289 feet
9A131110002calcs%WQIrwl02600 pirated 1M&M 1121 AM Page 3 of 12
The Preserve at Jord an Lake - WP WQ#1

Peak Inflow, (Qlo) _> 537 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff
Vol= 3,751,833 cf (vol. of runoff
Time to Peak, (TO _> 83.70 minutes
(SCS TR-55)
t t 4
(mom) icfs2
0.00 0.000 0 0.00
0.05 0.006 4 3.02
0.10 0.022 8 12.02
0.14 0.050 12 26.80
0.19 0.087 16 47.02
0.24 0.134 20 72.22
0.29 0.190 24 101.85
0.33 0.252 28 135.23
0.38 0.319 32 171.62
0.43 0.391 36 210.18
0.48 0.465 40 250.07
0.53 0.540 44 290.38
0.57 0.614 48 330.19
0.62 0.686 52 368.63
0.67 0.753 56 404.82
0.72 0.815 60 437.95
0.76 0.869 64 467.27
0.81 0.916 68 492.12
0.86 0.953 72 511.95
0.91 0.979 76 526.30
0.96 0.995 80 534.86
1.00 1.000 84 537.43
1.05 0.994 88 533.96
1.10 0.976 92 524.52
1.15 0.948 96 509.33
1.19 0.909 100 488.72
1.24 0.862 104 463.17
1.29 0.811 108 435.87
1.34 0.762 112 409.61
1.39 0.716 116 384.94
1.43 0.673 120 361.76
1.48 0.633 124 339.97
1.53 0.594 128 319.49
1.58 0.559 132 300.24
1.62 0.525 136 282.16
1.67 0.493 140 265.16
1.72 0.464 144 249.19
1.77 0.436 148 234.18
1.82 0.409 152 220.08
1.86 0.385 156 206.82
1.91 0.362 160 194.36
1.96 0.340 164 182.65
2.01 0.319 168 171.65
2.05 0.300 172 161.31
2.10 0.282 176 151.60
2.15 0.265 180 142.46
2.20 0.249 184 133.88
2.25 0.234 188 125.82
2.29 0.220 192 118.24
2.34 0.207 196 111.12
2.39 0.194 200 104.43
2.44 0.183 204 98.14
sA131 1100021eaWWO1rvA025W printed 1MSM 11:21 AM Page 4 of 12
2.48 0.172 208 92.22
2.53 0.161 212 86.67
2.58 0.152 216 81.45
2.63 0.142 220 76.54
2.68 0.134 224 71.93
2.72 0.126 228 67.60
2.77 0.118 232 63.53
2.82 0.111 236 59.70
2.87 0.104 240 56.10
2.92 0.098 244 52.73
2.96 0.092 248 49.55
3.01 0.087 252 46.56
3.06 0.081 256 43.76
3.11 0.077 260 41.12
3.15 0.072 264 38.65
3.20 0.068 268 36.32
3.25 0.064 272 34.13
3.30 0.060 276 32.08
3.35 0.056 280 30.14
3.39 0.053 284 28.33
3.44 0.050 288 26.62
3.49 0.047 292 25.02
sA1311woom=lcs%WQIm1025W pmded tOr25= 11:21 AM Page 5 of 12
•
Storm Table
WEIR ORIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL SPILLWAY OUTFLOW
(min) (Cfs) (cf) Sf2 Ls us 5Cfs2 5cs2 (eft) LEM
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0
4.00 3.02 0 0.00 0.0 0.0 0.0 0.0 0.0
8.00 12.02 725 0.02 0.0 1.0 0.0 0.0 0.0
12.00 26.80 3610 0.07 0.1 2.0 0.0 0.0 0.0
16.00 47.02 10036 0.17 0.4 3.2 0.1 0.0 0.1
20.00 72.22 21296 0.34 1.0 4.4 0.3 0.0 0.3
24.00 101.85 38567 0.57 2.2 5.7 3.9 0.0 2.2
28.00 135.23 62475 0.87 4.2 7.1 4.0 0.0 4.0
32.00 171.62 93978 1.25 7.2 8.5 4.0 0.0 4.0
36.00 210.18 134203 1.70 11.5 9.9 4.1 0.0 4.1
40.00 250.07 183672 2.25 17.4 11.4 4.1 0.0 4.1
44.00 290.38 242700 2.87 25.2 12.9 4.2 0.0 4.2
48.00 330.19 311386 3.57 35.0 14.3 4.3 2.8 7.1
52.00 368.63 388933 4.34 46.9 15.8 4.3 115.7 120.0
56.00 404.82 448603 4.92 56.6 16.8 4.4 254.0 258.4
60.00 437.95 483744 5.26 62.5 17.4 4.4 349.5 354.0
64.00 467.27 503898 5.45 65.9 17.7 4.5 408.3 412.8
68.00 492.12 516976 5.57 68.2 17.9 4.5 447.9 452.4
72.00 511.95 526516 5.66 69.9 18.1 4.5 477.5 481.9
76.00 526.30 533720 5.73 71.1 18.2 4.5 500.1 504.6
80.00 534.86 538923 5.78 72.0 18.2 4.5 516.7 521.2
84.00 537.43 542201 5.81 72.6 18.3 4.5 527.2 531.7
88.00 533.96 543569 5.82 72.9 18.3 4.5 531.7 536.1
92.00 524.52 543045 5.82 72.8 18.3 4.5 530.0 534.5
96.00 509.33 540662 5.80 72.4 18.3 4.5 522.3 526.8
100.00 488.72 536474 5.76 71.6 18.2 4.5 508.9 513.4
104.00 463.17 530557 5.70 70.6 18.1 4.5 490.1 494.6
108.00 435.87 523009 5.63 69.3 18.0 4.5 466.5 471.0
112.00 409.61 514578 5.55 67.8 17.9 4.5 440.6 445.0
116.00 384.94 506080 5.47 66.3 17.7 4.5 414.8 419.3
120.00 361.76 497833 5.39 64.9 17.6 4.4 390.3 394.8
124.00 339.97 489904 5.32 63.5 17.5 4.4 367.2 371.7
128.00 319.49 482299 5.24 62.2 17.4 4.4 345.4 349.9
132.00 300.24 475009 5.17 61.0 17.3 4.4 324.9 329.4
136.00 282.16 468021 5.11 59.8 17.1 4.4 305.6 310.1
140.00 265.16 461323 5.04 58.7 17.0 4.4 287.5 291.9
144.00 249.19 454902 4.98 57.6 16.9 4.4 270.4 274.8
148.00 234.18 448747 4.92 56.6 16.8 4.4 254.4 258.8
152.00 220.08 442845 4.87 55.6 16.7 4.4 239.3 243.7
156.00 206.82 437187 4.81 54.7 16.6 4.4 225.0 229A
160.00 194.36 431761 4.76 53.8 16.5 4.4 211.7 216.0
164.00 182.65 426558 4.71 52.9 16.5 4.4 199.1 203.4
168.00 171.65 421569 4.66 52.1 16.4 4.4 187.2 191.6
172.00 161.31 416783 4.61 51.4 16.3 4.4 176.1 180.4
176.00 151.60 412193 4.57 50.6 16.2 4.4 165.6 169.9
180.00 142.46 407789 4.53 49.9 16.1 4.4 155.7 160.1
184.00 133.88 403565 4.48 49.2 16.1 4.4 146.4 150.8
188.00 125.82 399512 4.44 48.6 16.0 4.4 137.7 142.0
192.00 118.24 395623 4.41 47.9 15.9 4.3 129.4 133.8
196.00 111.12 391891 4.37 47.4 15.9 4.3 121.7 126.0
200.00 104.43 388310 4.33 46.8 15.8 4.3 114.4 118.7
204.00 98.14 384873 4.30 46.2 15.7 4.3 107.5 111.9
208.00 92.22 381573 4.27 45.7 15.7 4.3 101.1 105.4
212.00 86.67 378406 4.24 45.2 15.6 4.3 95.0 99.3
216.00 81.45 375366 4.21 44.7 15.6 4.3 89.3 93.6
220.00 76.54 372447 4.18 44.3 15.5 4.3 83.9 88.2
224.00 71.93 369643 4.15 43.8 15.5 4.3 78.8 83.1
228.00 67.60 366951 4.12 43.4 15.4 4.3 74.1 78.4
232.00 63.53 364366 4.10 43.0 15.4 4.3 69.6 73.9
236.00 59.70 361883 4.07 42.6 15.3 4.3 65.3 69.6
240.00 56.10 359497 4.05 42.3 15.3 4.3 61.3 65.7
rit3flG ?wm,?,lo 073 357205 4,93.e ia-mmo 11:21 AI.9 15.2 4.3 57.6-age 6 of 12 61.9
The Preserve at Jordan
248.00 49.55 355003 4.01 41.6 15.2 4.3 54.1 58.4
252.00 46.56 352886 3.99 41.2 15.1 4.3 50.7 55.0
256.00 43.76 350852 3.97 40.9 15.1 4.3 47.6 51.9
260.00 41.12 348897 3.95 40.6 15.1 4.3 44.7 49.0
264.00 38.65 347017 3.93 40.3 15.0 4.3 41.9 46.2
268.00 36.32 345210 3.91 40.1 15.0 4.3 39.3 43.6
272.00 34.13 343471 3.89 39.8 15.0 4.3 36.8 41.1
276.00 32.08 341800 3.88 39.5 14.9 4.3 34.5 38.8
280.00 30.14 340192 3.86 39.3 14.9 4.3 32.3 36.6
284.00 28.33 338644 3.84 39.1 14.9 4.3 30.2 34.5
288.00 26.62 337156 3.83 38.8 14.8 4.3 28.3 32.6
292.00 25.02 335723 3.81 38.6 14.8 4.3 26.5 30.8

Peak Inflow, (Qu) = 628 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 4,937,331 cf (vol. of runoff
Time to Peak, (Tp) => 94.23 minutes
(SCS TR-55)
Utp 0/0p t Q
(Inin)
0.00 0.000 0.00 0.00
0.04 0.004 4.00 2.79
0.08 0.018 8.00 11.11
0.13 0.039 12.00 24.80
0.17 0.069 16.00 43.64
0.21 0.107 20.00 67.28
0.25 0.152 24.00 95.30
0.30 0.202 28.00 127.20
0.34 0.259 32.00 162.43
0.38 0.319 36.00 200.35
0.42 0.382 40.00 240.29
0.47 0.448 44.00 281.54
0.51 0.515 48.00 323.37
0.55 0.581 52.00 365.03
0.59 0.646 56.00 405.79
0.64 0.708 60.00 444.93
0.68 0.767 64.00 481.74
0.72 0.821 68.00 515.57
0.76 0.869 72.00 545.83
0.81 0.910 76.00 571.97
0.85 0.945 80.00 593.53
0.89 0.971 84.00 610.13
0.93 0.989 88.00 621.48
0.98 0.999 92.00 627.37
1.02 0.999 96.00 627.69
1.06 0.991 100.00 622.45
1.10 0.974 104.00 611.73
1.15 0.948 108.00 595.73
1.19 0.915 112.00 574.72
1.23 0.874 116.00 549.09
1.27 0.829 120.00 520.78
1.32 0.784 124.00 492.82
1.36 0.742 128.00 466.36
1.40 0.702 132.00 441.32
1.44 0.665 136.00 417.63
1.49 0.629 140.00 395.21
1.53 0.595 144.00 373.99
1.57 0.563 148.00 353.91
1.61 0.533 152.00 334.91
s:11311UXK zmaIcs4wo,rw1O2ko66 0.504 15(mQ& ,0 &M 11: 23 6.93 Page 7 of 12
The P reserve at Jor dan Lake WP WQ#1
1.70 0.477 160.00 299.91
1.74 0.452 164.00 283.81
1.78 0.428 168.00 268.58
1.83 0.405 172.00 254.16
1.87 0.383 176.00 240.51
1.91 0.362 180.00 227.60
1.95 0.343 184.00 215:38
2.00 0.324 188.00 203.82
2.04 0.307 192.00 192.87
2.08 0.291 196.00 182.52
2.12 0.275 200.00 172.72
2.16 0.260 204.00 163.45
2.21 0.246 208.00 154.67
2.25 0.233 212.00 146.37
2.29 0.220 216.00 138.51
2.33 0.209 220.00 131.07
2.38 0.197 224.00 124.04
2.42 0.187 228.00 117.38
2.46 0.177 232.00 111.08
2.50 0.167 236.00 105.11
2.55 0.158 240.00 99.47
2.59 0.150 244.00 94.13
2.63 0.142 248.00 89.08
2.67 0.134 252.00 84.29
2.72 0.127 256.00 79.77
2.76 0.120 260.00 75.49
2.80 0.114 264.00 71.43
2.84 0.108 268.00 67.60
2.89 0.102 272.00 63.97
2.93 0.096 276.00 60.53
2.97 0.091 280.00 57.28
3.01 0.086 284.00 54.21
3.06 0.082 288.00 51.30
3.10 0.077 292.00 48.54
3.14 0.073 296.00 45.94
3.18 0.069 300.00 43.47
3.23 0.065 304.00 41.14
3.27 0.062 308.00 38.93
3.31 0.059 312.00 36.84
3.35 0.055 316.00 34.86
3.40 0.053 320.00 32.99

Storm R outing
WEIR ORIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL SPILLWAY OUTFLOW
L2 lCf32 Lcf)- U (Cfs) (cfs) icfs2 L2 iCfs2
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0
4.00 2.79 0 0.00 0.0 0.0 0.0 0.0 0.0
8.00 11.11 669 0.02 0.0 1.0 0.0 0.3 0.3
12.00 24.80 3260 0.07 0.1 1.9 0.0 2.5 2.5
16.00 43.64 8610 0.15 0.3 3.0 0.1 9.0 9.0
20.00 67.28 16914 0.28 0.8 4.0 0.2 21.8 22.0
24.00 95.30 27781 0.43 1.4 5.0 0.4 41.9 42.3
28.00 127.20 40502 0.60 2.4 5.9 3.9 68.9 71.3
32.00 162.43 53926 0.77 3.5 6.6 4.0 100.4 103.9
36.00 200.35 67969 0.94 4.7 7.3 4.0 136.3 140.2
40.00 240.29 82396 1.11 6.1 8.0 4.0 175.6 179.6
44.00 281.54 96964 1.28 7.5 8.6 4.0 217.6 221.6
48.00 323.37 111346 1.45 9.0 9.1 4.0 261.1 265.1
52.00 365.03 125324 1.61 10.5 9.6 4.1 305.1 309.2
56.00 405.79 138733 1.76 12.1 10.1 4.1 348.8 352.9
60.00 444.93 151427 1.90 13.5 10.4 4.1 391.5 395.6
64.00 481.74 163273 2.03 14.9 10.8 4.1 432.3 436.4
68.00 515.57 174148 2.14 16.3 11.1 4.1 470.7 474.8
s:%137QaQQ?.i.sAwa,rw44&83 183939 2PUct iw25= ii:v A7.5 11.4 4.1 505.hge 8 of 12510.0
,The Pre serve at Jord an Lake WP WQ#l
76.00 571.97 192548 2.34 18.6 11.6 4.1 537.3 541.4
80.00 593.53 199888 2.42 19.5 11.8 4.1 564.4 568.5
84.00 610.13 205886 2.48 20.3 12.0 4.1 586.8 591.0
88.00 621.48 210487 2.53 20.9 12.1 4.2 604.2 608.3
92.00 627.37 213648 2.56 21.3 12.2 4.2 616.1 620.3
96.00 627.69 215345 2.58 21.5 12.2 4.2 622.6 626.8
100.00 622.45 215571 2.59 21.5 12.2 4.2 623.5 627.6
104.00 611.73 214332 2.57 21.4 12.2 4.2 618.7 622.9
108.00 595.73 211653 2.54 21.0 12.1 4.2 608.6 612.7
112.00 574.72 207574 2.50 20.5 12.0 4.1 593.2 597.3
116.00 549.09 202153 2.44 19.8 11.9 4.1 572.8 577.0
120.00 520.78 195459 2.37 18.9 11.7 4.1 548.0 552.1
124.00 492.82 187938 2.29 18.0 11.5 4.1 520.4 524.5
128.00 466.36 180335 2.21 17.0 11.3 4.1 492.8 496.9
132.00 441.32 172997 2.13 16.1 11.1 4.1 466.6 470.7
136.00 417.63 165952 2.05 15.3 10.9 4.1 441.7 445.8
140.00 395.21 159191 1.98 14.5 10.7 4.1 418.1 422.2
144.00 373.99 152704 1.91 13.7 10.5 4.1 395.8 399.9
148.00 353.91 146479 1.84 12.9 10.3 4.1 374.7 378.8
152.00 334.91 140506 1.77 12.3 10.1 4.1 354.7 358.8
156.00 316.93 134775 1.71 11.6 9.9 4.1 335.8 339.8
160.00 299.91 129275 1.65 11.0 9.7 4.1 317.8 321.9
164.00 283.81 123998 1.59 10.4 9.6 4.0 300.9 304.9
168.00 268.58 118933 1.53 9.8 9.4 4.0 284.8 288.8
172.00 254.16 114074 1.48 9.3 9.2 4.0 269.6 273.6
176.00 240.51 109410 1.42 8.8 9.1 4.0 255.1 259.2
180.00 227.60 104935 1.37 8.3 8.9 4.0 241.5 245.5
184.00 215.38 100640 1.32 7.9 8.7 4.0 228.5 232.6
188.00 203.82 96518 1.28 7.5 8.6 4.0 216.3 220.3
192.00 192.87 92563 1.23 7.1 8.4 4.0 204.7 208.7
196.00 182.52 88767 1.19 6.7 8.3 4.0 193.7 197.7
200.00 172.72 85124 1.14 6.3 8.1 4.0 183.3 187.3
204.00 163.45 81627 1.10 6.0 8.0 4.0 173.4 177.4
208.00 154.67 78271 1.06 5.7 7.8 4.0 164.1 168.1
212.00 146.37 75050 1.02 5.4 7.7 4.0 155.3 159.3
216.00 138.51 71958 0.99 5.1 7.5 4.0 146.9 150.9
220.00 131.07 68991 0.95 4.8 7.4 4.0 139.0 142.9
224.00 124.04 66142 0.92 4.5 7.3 4.0 131.5 135.4
228.00 117.38 63408 0.88 4.3 7.1 4.0 124.3 128.3
232.00 111.08 60783 0.85 4.1 7.0 4.0 117.6 121.6
236.00 105.11 58264 0.82 3.8 6.9 4.0 111.2 115.1
240.00 99.47 55874 0.79 3.6 6.7 4.0 105.3 108.9
244.00 94.13 53612 0.76 3.4 6.6 4.0 99.7 103.1
248.00 89.08 51453 0.73 3.3 6.5 4.0 94.4 97.7
252.00 84.29 49386 0.71 3.1 6.4 4.0 89.5 92.6
2560 79.77 47404 0.68 2.9 6.3 3.9 84.8 87.7
260.00 75.49 45503 0.66 2.8 6.2 3.9 80.3 83.1
264.00 71.43 43679 0.64 2.6 6.1 3.9 76.1 78.7
268.00 67.60 41929 0.61 2.5 5.9 3.9 72.1 74.6
272.00 63.97 40249 0.59 2.4 5.8 3.9 68.3 70.7
276.00 60.53 38637 0.57 2.2 5.7 3.9 64.7 67.0
280.00 57.28 37091 0.55 2.1 5.6 3.9 61.3 63.5
284.00 54.21 35606 0.53 2.0 5.5 3.9 58.1 60.1
288.00 51.30 34182 0.51 1.9 5.4 3.9 55.1 57.0
292.00 48.54 32815 0.49 1.8 5.3 0.5 52.2 52.7
296.00 45.94 31824 0.48 1.7 5.3 0.4 50.1 50.6
300.00 43.47 30708 0.47 1.7 5.2 0.4 47.8 48.3
304.00 41.14 29558 0.45 1.6 5.1 0.4 45.5 45.9
308.00 38.93 28416 0.44 1.5 5.0 0.4 43.2 43.6
312.00 36.84 27301 0.42 1.4 4.9 0.4 41.0 41.3
316.00 34.86 26222 0.41 1.3 4.8 0.3 38.9 39.2
320.00 32.99 25182 0.39 1.3 4.8 0.3 36.8 37.2
s:11311W0021wks%WQlrwlO2500 printed 10OW 11:21 AM Page 9 of 12
Inflow Hydrograph 100-yr
Peak Inflow, (Q100) = 759 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in
Q*= 3.46 in. (depth of runoff)
Vol= 6,889,827 cf (Vol. of runoff
Time to Peak, (Tp) => 108.88 minutes
(SCS TR-55)
kt-R -LQP t Q
(min) "s2
0.00 0.000 0.00 0.00
0.04 0.003 4.00 2.52
0.08 0.013 8.00 10.06
0.13 0.030 12.00 22.51
0.17 0.052 16.00 39.71
0.21 0.081 20.00 61.43
0.25 0.115 24.00 87.38
0.30 0.154 28.00 117.21
0.34 0.198 32.00 150.54
0.38 0.246 36.00 186.90
0.42 0.298 40.00 225.83
0.47 0.352 44.00 266.80
0.51 0.408 48.00 309.27
0.55 0.465 52.00 352.67
0.59 0.522 56.00 396.43
0.64 0.580 60.00 439.95
0.68 0.636 64.00 482.68
0.72 0.691 68.00 524.02
0.76 0.743 72.00 563.45
0.81 0.791 76.00 600.42
0.85 0.836 80.00 634.45
0.89 0.877 84.00 665.09
0.93 0.912 88.00 691.93
0.98 0.942 92.00 714.61
1.02 0.966 96.00 732.83
1.06 0.984 100.00 746.34
1.10 0.995 104.00 754.97
1.15 1.000 108.00 758.61
1.19 0.998 112.00 757.19
1.23 0.989 116.00 750.76
1.27 0.974 120.00 739.37
1.32 0.953 124.00 723.20
1.36 0.926 128.00 702.46
1.40 0.893 132.00 677.41
1.44 0.855 136.00 648.40
1.49 0.816 140.00 618.92
1.53 0.778 144.00 590.06
1.57 0.741 148.00 562.54
1.61 0.707 152.00 536.31
1.66 0.674 156.00 511.30
1.70 0.642 160.00 487.45
1.74 0.612 164.00 464.72
1.78 0.584 168.00 443.05
1.83 0.557 172.00 422.39
1.87 0.531 176.00 402.69
1.91 0.506 180.00 383.91
1.95 0.482 184.00 366.00
2.00 0.460 188.00 348.93
2.04 0.438 192.00 332.66
2.08 0.418 196.00 317.15
2.12 0.399 200.00 302.36
2.16 0.380 204.00 288.26
*Al31110002%calcs%wa1mno"1 0.362 20$AQ iar2sm 11:22U.81
S= 2.66 in.
Page 10 of 12
The Pres erve at Jo rdan Lake WP WQ#l
2.25 0.345 212.00 262.00
2.29 0.329 216.00 249.78
2.33 0.314 220.00 238.13
2.38 0.299 224.00 227.03
2.42 0.285 228.00 216.44
2.46 0.272 232.00 206.34
2.50 0.259 236.00 196.72
2.55 0.247 240.00 187.55
2.59 0.236 244.00 178.80
2.63 0.225 248.00 170.46
2.67 0.214 252.00 162.51
2.72 0.204 256.00 154.93
2.76 0.195 260.00 147.71
2.80 0.186 264.00 140.82
2.84 0.177 268.00 134.25
2.89 0.169 272.00 127.99
2.93 0.161 276.00 122.02
2.97 0.153 280.00 116.33
3.01 0.146 284.00 110.91
3.06 0.139 288.00 105.73
3.10 0.133 292.00 100.80
3.14 0.127 296.00 96.10
3.18 0.121 300.00 91.62
3.23 0.115 304.00 87.35
3.27 0.110 308.00 83.27
3.31 0.105 312.00 79.39
3.35 0.100 316.00 75.69
3.40 0.095 320.00 72.16
3.44 0.091 324.00 68.79
3.48 0.086 328.00 65.59
3.52 0.082 332.00 62.53
3.57 0.079 336.00 59.61

Storm Rout ing
WEIR ORIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL SPILLWAY OUTFLOW
(ndn) (cfs) (en LAI icfs2 LS&Z
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0
4.00 2.52 0 0.00 0.0 0.0 0.0 0.0 0.0
8.00 10.06 606 0.01 0.0 0.9 0.0 0.3 0.3
12.00 22.51 2955 0.06 0.1 1.9 0.0 2.2 2.2
16.00 39.71 7828 0.14 0.3 2.8 0.1 7.9 8.0
20.80 61.43 15446 0.26 0.7 3.8 0.2 19.3 19.5
24.00 87.38 25505 0.40 1.3 4.8 0.3 37.5 37.8
28.00 117.21 37407 0.56 2.1 5.7 3.9 62.0 64.2
32.00 150.54 50134 0.72 3.2 6.4 4.0 91.2 94.4
36.00 186.90 63606 0.88 4.3 7.1 4.0 124.9 128.8
40.00 225.83 77545 1.05 5.6 7.8 4.0 162.1 166.1
44.00 266.80 91882 1.22 7.0 8.4 4.0 202.7 206.7
48.00 309.27 106304 1.39 8.5 8.9 4.0 245.6 249.7
52.00 352.67 120611 1.55 10.0 9.5 4.0 290.1 294.1
56.00 396.43 134660 1.71 11.6 9.9 4.1 335.4 339.5
60.00 439.95 148330 1.86 13.2 10.4 4.1 381.0 385.1
64.00 482.68 161507 2.01 14.7 10.7 4.1 426.2 430.3
68.00 524.02 174084 2.14 16.3 11.1 4.1 470.4 474.5
72.00 563.45 185959 2.27 17.7 11.4 4.1 513.2 517.3
76.00 600.42 197037 2.39 19.1 11.7 4.1 553.8 558.0
80.00 634.45 207230 2.50 20.5 12.0 4.1 591.9 596.0
84.00 665.09 216455 2.59 21.7 12.2 4.2 626.8 631.0
88.00 691.93 224641 2.68 22.7 12.4 4.2 658.2 662.4
92.00 714.61 231726 2.75 23.7 12.6 4.2 685.7 689.9
96.00 732.83 237654 2.82 24.5 12.7 4.2 708.9 713.1
100.00 746.34 242384 2.87 25.1 12.8 4.2 727.6 731.8
104.00 754.97 245880 2.90 25.6 12.9 4.2 741.4 745.6
e:nil %M=wwaireviH&61 248121 24R.Id l V,&W »:21,8.9 13.0 4.2 750*e 11 of 12754.6
?The Pres erve at Jord an Lake WP WQ#l
112.00 757.19 249094 2.94 26.1 13.0 4.2 754.2 758.4
116.00 750.76 248797 2.93 26.0 13.0 4.2 753.1 757.2
120.00 739.37 247239 2.92 25.8 13.0 4.2 746.8 751.0
124.00 723.20 244440 2.89 25.4 12.9 4.2 735.7 739.9
128.00 702.46 240429 2.85 24.9 12.8 4.2 719.9 724.0
132.00 677.41 235248 2.79 24.2 12.7 4.2 699.5 703.7
136.00 648.40 228945 2.73 23.3 12.5 4.2 674.9 679.1
140.00 618.92 221583 2.65 22.3 12.3 4.2 646.5 650.6
144.00 590.06 213974 2.57 21.3 12.2 4.2 617.4 621.5
148.00 562.54 206421 2.49 20.3 12.0 4.1 588.8 593.0
152.00 536.31 199117 2.41 19.4 11.8 4.1 561.5 565.7
156.00 511.30 192070 2.34 18.5 11.6 4.1 535.5 539.6
160.00 487.45 185270 2.26 17.6 11.4 4.1 510.7 514.8
164.00 464.72 178710 2.19 16.8 11.2 4.1 487.0 491.1
168.00 443.05 172381 2.12 16.0 11.1 4.1 464.4 468.5
172.00 422.39 166275 2.06 15.3 10.9 4.1 442.8 446.9
176.00 402.69 160384 1.99 14.6 10.7 4.1 422.3 426.4
180.00 383.91 154699 1.93 13.9 10.5 4.1 402.7 406.8
184.00 366.00 149215 1.87 13.3 10.4 4.1 384.0 388.1
188.00 348.93 143924 1.81 12.7 10.2 4.1 366.1 370.2
192.00 332.66 138818 1.76 12.1 10.1 4.1 349.1 353.2
196.00 317.15 133892 1.70 11.5 9.9 4.1 332.9 337.0
200.00 302.36 129140 1.65 11.0 9.7 4.1 317.4 321.5
204.00 288.26 124554 1.60 10.5 9.6 4.0 302.6 306.7
208.00 274.81 120129 1.55 10.0 9.4 4.0 288.6 292.6
212.00 262.00 115859 1.50 9.5 9.3 4.0 275.1 279.2
216.00 249.78 111740 1.45 9.1 9.1 4.0 262.3 266.3
220.00 238.13 107764 1.41 8.6 9.0 4.0 250.1 254.1
224.00 227.03 103929 1.36 8.2 8.9 4.0 238.4 242.4
228.00 216.44 100227 1.32 7.9 8.7 4.0 227.3 231.3
232.00 206.34 96656 1.28 7.5 8.6 4.0 216.7 220.7
236.00 196.72 93209 1.24 7.1 8.4 4.0 206.6 210.6
240.00 187.55 89884 1.20 6.8 8.3 4.0 196.9 200.9
244.00 178.80 86674 1.16 6.5 8.2 4.0 187.7 191.7
248.00 170.46 83577 1.12 6.2 8.0 4.0 178.9 182.9
252.00 162.51 80589 1.09 5.9 7.9 4.0 170.5 174.5
256.00 154.93 77705 1.05 5.6 7.8 4.0 162.5 166.5
260.00 147.71 74921 1.02 5.4 7.7 4.0 154.9 158.9
264.00 140.82 72235 0.99 5.1 7.5 4.0 147.6 151.6
268.00 134.25 69643 0.96 4.9 7.4 4.0 140.7 144.7
272.00 127.99 67141 0.93 4.6 7.3 4.0 134.1 138.1
276.00 122.02 64726 0.90 4.4 7.2 4.0 127.8 131.7
280.00 116.33 62396 0.87 4.2 7.1 4.0 121.7 125.7
284.00 110.91 60146 0.84 4.0 7.0 4.0 116.0 120.0
288.00 105.73 57975 0.82 3.8 6.9 4.0 110.5 114.3
29200 100.80 55914 0.79 3.6 6.7 4.0 105.4 109.0
296.00 96.10 53948 0.77 3.5 6.6 4.0 100.5 104.0
300.00 91.62 52058 0.74 3.3 6.5 4.0 95.9 99.2
304.00 87.35 50238 0.72 3.2 6.4 4.0 91.5 94.7
308.00 83.27 48483 0.70 3.0 6.3 3.9 87.3 90.3
312.00 79.39 46790 0.68 2.9 6.2 3.9 83.3 86.2
316.00 75.69 45157 0.65 2.7 6.1 3.9 79.5 82.3
320.00 72.16 43581 0.63 2.6 6.0 3.9 75.9 78.5
324.00 68.79 42061 0.62 2.5 6.0 3.9 72.4 74.9
328.00 65.59 40594 0.60 2.4 5.9 3.9 69.1 71.5
332.00 62.53 39178 0.58 2.3 5.8 3.9 65.9 68.2
336.00 59.61 37813 0.56 2.2 5.7 3.9 62.9 65.1
s:1131110002WalcsXVMlr AO2300 pmded 10/26/001121 AM Page 12 Of 12
FES AT WATER QUALITY POND #1
flow Q in cfs : 3.2 Flow depth (ft) = 0.50
slope S in ft/ft :.041 Outlet velocity (fps) = 16.297
pipe diameter D in ft :.5
Manning number n :.012
ZONE 3
For a pipe diameter of 0.50 feet and
an outlet velocity of 16.30 feet per second:
The recommended apron length is 4.00 feet.
The maximum stone diameter is 36.1 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 13 B 22
IMPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #2

# Lots s.f./Lot Total
6 6,500 39,000
Roadways 8,275 s.f.
Lots (houses, drives, etc.) 39,000 s.f.
Sidewalks - s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 47,275 s.f.
Total Area = 3.94 ac.
Impervious Area = 1.09 ac.
Impervious Percentage = 27.5%
The storage volume for the 1" storm (Schueler Method) would be:
Rv = .05+.009 (1)
RV= 0.298
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.09767917 ac.ft
4,255 cf
4,255 c.f. storage required.
5,106 c.f. required including an additional 20% for sediment storage
6,065 c.f. storage provided.
storage Provided
Incremental Total
Elev. Area (s.f.) Volume (c.f.) Volume (c.f.) Depth (ft)

298 311
1,227 1,227
300 916 2
2,736 3,963
302 1,820 4
2,102 6,065
303 2,384 5
Drawdown calculation
Orifice required for 2-5 Day Drawdown
5.0 feet of storage so, say 2.5 feet of average head
Using a 3/4" orifice Q2-day= 4,034
Q = 0.02 cis Q5-day= 10,085
So, a 3/4" Orifice will drawdown pond in 3.01 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
Preserve The Jordan 11
DESIGN REQUIREMENTS:
A Dry Pond Routing - Store 1" inch of impervious runoff.
Post-Development Runoff 10-yr
Drainage Area, (DA) = 3.94 acres
Overland Flow
Elevation of most remote point, (HI) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (111) = 350.0 feet
Elevation of point of design, (H2) = 302.0 feet
Length of travel, (L) = 555.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 16 minutes
Pipe Flow
Elevation of most remote point, (HI) = 0.0 feet
Elevation of point of design, (112) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult• factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) 5.0 minutes
Intensity, (I) = 7.22 inches/hr
Area 1 (Impetuous) = 1.09 acres
Area 2 (Pervious) = 2.85 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) _> 0.41
Peak Release Rate, (Qla) 12 cfs

Post-Development off
Drainage Area, (DA) = 3.94 acres
Time dff Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) _> 0.41
Peak Release Rate, (Qz) _> 13 cfs 5,795
Post-Development Runoff 100-yr
Drainage Area, (DA) = 3.94 acres
Time of Concentration, (Tc)
Intensity, (1) _
Composite Runoff Coefficient, (C)
Peak Release Rate, (Q100) _>
5.0 minutes
9.67 inches
0.41
16 cfs
sA131 I%a00Zca1es\wQZ protect ION= 2.34 PM Page 1 of 13
:The Pr eserve at Jordan L ake - /1

Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est

298 311 '
300 916 1,227 1,227 2.00 7.11 0.69 2.26
302 1,820 2,736 3,963 4.00 8.28 1.39 4.02
304 3,014 4,834 8,797 6.00 9.08 1.79 5.94
306 4,456 7,470 16,267 8.00 9.70 2.08 8.04
Check
Stage Storage
2 961
3 2,191
4 3,932
6 8,965
Regression Output:
b: 2.03 (X Variable Coe>f)
K 235 (ey "°'°'p`)
Stage - Storage Equation is of the form: S = (KsxZ)
Stage - Discharge Relationship
Bottom Dry Pond Elevation 298.0 feet
Water Surface Elev. (Qio) _ (i.. Y feet
Water Surface Elev. (Q25) = 303.63 feet
Water Surface Elev. (Q100) = 344.03 feet
Primary Spillway
Barrel
Dia. of Barrel = 15 inches
Area of Barrel, (Ab) = 1.23 sf
Pipe Length, (L) = 60.0 feet
Friction Coeff., (Kp) = 0.01980
Inv. of Barrel = 298.00 feet
Riser
Elev. of Riser Crest = 303.00 feet
Circular.
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 0.75 " 0.0031
s:\1311100021cWmIWg2 printed 1019/00 2:34 PM
Page 2 of 13
Preserve The 11 i
Rectangular.
Length of Riser = 2 feet
Width of Riser = 2 feet
Weir Length = 8 feet
Area of Riser = 4 sq.ft.
',Emergency Spillway
Width of Spillway (Approx.) = 0 feet
Weir Coefficient = 3.0
Crest Elevation = 0 feet
.A131 IWO02WWo M12 pmted 1019= 2:34 PM Page 3 of 13
DD
,The Preserve at Jordan Lake - E :Inflow og 10-yr
Peak Inflow, (Q10) 12 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff
Vol= 26,926 cf (vol. of runoff
Time to Peak, (Tp) 27.84 minutes
(SCS TR-55)
Y!2 _Q QA i s

0.00 0.000 0 0.00
0.07 0.013 2 0.15
0.14 0.050 4 0.58
0.22 0.110 6 1.28
0.29 0.190 8 2.21
0.36 0.286 10 3.32
0.43 0.392 12 4.55
0.50 0.504 14 5.85
0.57 0.616 16 7.14
0.65 0.722 18 8.37
0.72 0.817 20 9.47
0.79 0.895 22 10.38
0.86 0.954 24 11.06
0.93 0.989 26 11.47
1.01 1.000 28 11.59
1.08 0.985 30 11.42
1.15 0.946 32 10.97
1.22 0.884 34 10.25
1.29 0.808 36 9.37
1.36 0.736 38 8.54
1.44 0.671 40 7.77
1.51 0.611 42 7.08
1.58 0.556 44 6.45
1.65 0.507 46 5.88
1.72 0.462 48 5.35
1.80 0.420 50 4.87
1.87 0.383 52 4.44
1.94 0.349 54 4.04
2.01 0.318 56 3.68
2.08 0.289 58 3.36
2.15 0.264 60 3.06
2.23 0.240 62 2.78
2.30 0.219 64 2.54
2.37 0.199 66 2.31
2.44 0.181 68 2.10
2.51 0.165 70 1.92
2.59 0.150 72 1.75
2.66 0.137 74 1.59
2.73 0.125 76 1.45
2.80 0.114 78 1.32
2.87 0.104 80 1.20
2.95 0.094 82 1.09
3.02 0.086 84 1.00
3.09 0.078 86 0.91
3.16 0.071 88 0.83
3.23 0.065 90 0.75
3.30 0.059 92 0.69
3.38 0.054 94 0.62
3.45 0.049 96 0.57
3.52 0.045 98 0.52
3.59 0.041 100 0.47
3.66 0.037 102 0.43
s:17311V0002%aa1cs%Wg2 Rmtect 10191002'34 PM
Page 4 of 13
;The Preserve a t Jordan L ake - 1/
3.74 0.034 104 0.39
3.81 0.031 106 0.36
3.88 0.028 108 0.32
3.95 0.026 110 0.30
4.02 0.023 112 0.27
4.09 0.021 114 0.25
4.17 0.019 116 0.22
4.24 0.018 118 0.20
4.31 0.016 120 0.19
4.38 0.015 122 0.17
4.45 0.013 124 0.15
4.53 0.012 126 0.14
4.60 0.011 128 0.13
4.67 0.010 130 0.12
4.74 0.009 132 0.11
4.81 0.008 134 0.10
4.88 0.008 136 0.09
4.96 0.007 138 0.08
5.03 0.006 140 0.07
5.10 0.006 142 0.07
5.17 0.005 144 0.06
5.24 0.005 146 0.06
5.32 0.004 148 0.05
5.39 0.004 150 0.05
5.46 0.004 152 0.04
5.53 0.003 154 0.04
5.60 0.003 156 0.03
5.67 0.003 158 0.03
5.75 0.002 160 0.03
5.82 0.002 162 0.03
5.89 0.002 164 0.02
5.96 0.002 166 0.02
6.03 0.002 168 0.02
6.11 0.002 170 0.02
6.18 0.001 172 0.02
6.25 0.001 174 0.01
6.32 0.001 176 0.01
sAl3iiwoo2%mlcs%wq2 pined tOMM 2.34 PM Page 5 of 13
Pre
:The serve //
Ro
Storm uting
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) (cfs) Ld-l (ft) (Cfs) LS&Z (cfs) (cfs) ists1
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.15 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.58 18 0.28 0.0 0.0 0.5 0.1 0.0 0.1
6.00 1.28 80 0.59 0.0 0.0 1.5 0.1 0.0 0.1
8.00 2.21 222 0.97 0.0 0.0 3.2 0.1 0.0 0.1
10.00 3.32 473 1.41 0.0 0.0 5.2 0.1 0.0 0.1
12.00 4.55 854 1.89 0.0 0.0 6.6 0.2 0.0 0.2
14.00 5.85 1380 2.39 0.0 0.0 7.9 0.2 0.0 0.2
16.00 7.14 2060 2.91 0.0 0.0 8.9 0.2 0.0 0.2
18.00 8.37 2893 3.44 0.0 0.0 9.9 0.2 0.0 0.2
20.00 9.47 3872 3.97 0.0 0.0 10.8 0.2 0.0 0.2
22.00 10.38 4980 4.49 0.0 0.0 11.6 0.3 0.0 0.3
24.00 11.06 6195 5.00 0.0 7.8 12.4 0.3 0.0 0.3
26.00 11.47 7490 5.49 9.1 108.4 13.0 0.3 0.0 9.4
28.00 11.59 7739 5.58 11.7 117.8 13.2 0.3 0.0 12.0
30.00 11.42 7693 5.56 11.2 116.2 13.1 0.3 0.0 11.5
32.00 10.97 7685 5.56 11.1 115.9 13.1 0.3 0.0 11.4
34.00 10.25 7633 5.54 10.6 113.9 13.1 0.3 0.0 10.9
36.00 9.37 7560 5.52 9.8 111.2 13.1 03 0.0 10.1
38.00 8.54 7472 5.49 8.9 107.7 13.0 0.3 0.0 9.2
40.00 7.77 7391 5.46 8.1 104.4 13.0 0.3 0.0 8.4
42.00 7.08 7314 5.43 7.4 101.2 13.0 0.3 0.0 7.7
44.00 6.45 7243 5.40 6.7 98.0 12.9 0.3 0.0 7.0
46.00 5.88 7176 5.38 6.1 95.0 12.9 0.3 0.0 6.4
48.00 5.35 7113 5.35 5.6 92.0 12.9 0.3 0.0 5.8
50.00 4.87 7054 533 5.1 89.1 12.8 0.3 0.0 5.3
52.00 4.44 6999 5.31 4.6 86.3 12.8 0.3 0.0 4.9
54.00 4.04 6947 5.29 4.2 83.6 12.8 0.3 0.0 4.4
56.00 3.68 6898 5.27 3.8 80.9 12.7 0.3 0.0 4.1
58.00 3.36 6853 5.26 3.4 78.4 12.7 0.3 0.0 3.7
60.00 3.06 6810 5.24 3.1 75.9 12.7 0.3 0.0 3.4
62.00 2.78 6769 5.23 2.8 73.4 12.7 0.3 0.0 3.1
64.00 2.54 6732 5.21 2.6 71.0 12.7 0.3 0.0 2.8
66.00 2.31 6696 5.20 2.3 68.7 12.6 0.3 0.0 2.6
68.00 2.10 6662 5.18 2.1 66.4 12.6 0.3 0.0 2.4
70.00 1.92 6631 5.17 1.9 64.2 12.6 0.3 0.0 2.2
72.00 1.75 6601 5.16 1.7 62.1 12.6 0.3 0.0 2.0
74.00 1.59 6573 5.15 1.5 60.0 12.6 0.3 0.0 1.8
76.00 1.45 6547 5.14 1.4 57.9 12.6 0.3 0.0 1.7
78.00 1.32 6522 5.13 1.2 55.9 12.5 0.3 0.0 1.5
80.00 1.20 6498 5.12 1.1 53.9 12.5 0.3 0.0 1.4
82.00 1.09 6476 5.11 1.0 51.9 12.5 0.3 0.0 1.3
84.00 1.00 6455 5.10 0.9 50.0 12.5 0.3 0.0 1.2
86.00 0.91 6435 5.10 0.8 48.1 12.5 0.3 0.0 1.1
88.00 0.83 6416 5.09 0.7 46.3 12.5 0.3 0.0 1.0
90.00 0.75 6398 5.08 0.6 44.4 12.5 0.3 0.0 0.9
92.00 0.69 6381 5.08 0.6 42.6 12.5 0.3 0.0 0.8
94.00 0.62 6365 5.07 0.5 40.8 12.5 0.3 0.0 0.8
96.00 0.57 6350 5.06 0.4 39.0 12.4 0.3 0.0 0.7
98.00 0.52 6335 5.06 0.4 37.2 12.4 0.3 0.0 0.6
100.00 0.47 6321 5.05 0.3 35.4 12.4 0.3 0.0 0.6
102.00 0.43 6308 5.05 0.3 33.6 12.4 0.3 0.0 0.5
104.00 0.39 6295 5.04 0.2 31.7 12.4 0.3 0.0 0.5
106.00 0.36 6283 5.04 0.2 29.8 12.4 0.3 0.0 0.5
108.00 0.32 6271 5.03 0.2 27.9 12.4 0.3 0.0 0.4
110.00 0.30 6259 5.03 0.1 25.9 12.4 0.3 0.0 0.4
112.00 0.27 6248 5.02 0.1 23.7 12.4 0.3 0.0 0.4
114.00 0.25 6237 5.02 0.1 21.4 12.4 0.3 0.0 0.3
116.00 0.22 6226 5.01 0.0 18.9 12.4 0.3 0.0 0.3
118.00 0.20 6216 5.01 0.0 15.9 12.4 0.3 0.0 0.3
120.00 0.19 6205 5.01 0.0 12.3 12.4 0.3 0.0 0.3
s:32a, jcs%wq20.17 6193 5.00 04QMed 10MM z641AW 12.4 0.3 0.0 OF&ge 6 of 13
The Pre serve a t Jordan L ake - E
DD
124.00 0.15 6182 5.00 0.0 0.0 12.4 0.3 0.0 0.3
126.00 0.14 6168 4.99 0.0 0.0 12.3 0.3 0.0 0.3
128.00 0.13 6153 4.99 0.0 0.0 12.3 0.3 0.0 0.3
130.00 0.12 6137 4.98 0.0 0.0 12.3 0.3 0.0 0.3
132.00 0.11 6119 4.97 0.0 0.0 12.3 0.3 0.0 0.3
134.00 0.10 6100 4.96 0.0 0.0 12.3 0.3 0.0 0.3
136.00 0.09 6080 4.96 0.0 0.0 12.3 0.3 0.0 0.3
138.00 0.08 6059 4.95 0.0 0.0 12.3 0.3 0.0 0.3
140.00 0.07 6037 4.94 0.0 0.0 12.3 0.3 0.0 0.3
142.00 0.07 6014 4.93 0.0 0.0 12.3 0.3 0.0 0.3
144.00 0.06 5990 4.92 0.0 0.0 12.2 0.3 0.0 0.3
146.00 0.06 5966 4.91 0.0 0.0 12.2 0.3 0.0 0.3
148.00 0.05 5941 4.90 0.0 0.0 12.2 0.3 0.0 0.3
150.00 0.05 5916 4.89 0.0 0.0 12.2 0.3 0.0 0.3
152.00 0.04 5890 4.88 0.0 0.0 12.2 0.3 0.0 0.3
154.00 0.04 5863 4.87 0.0 0.0 12.2 0.3 0.0 0.3
156.00 0.03 5837 4.86 0.0 0.0 12.2 0.3 0.0 0.3
158.00 0.03 5809 4.85 0.0 0.0 12.1 0.3 0.0 0.3
160.00 0.03 5782 4.84 0.0 0.0 12.1 0.3 0.0 0.3
162.00 0.03 5754 4.82 0.0 0.0 12.1 0.3 0.0 0.3
164.00 0.02 5726 4.81 0.0 0.0 12.1 0.3 0.0 0.3
166.00 0.02 5697 4.80 0.0 0.0 12.1 0.3 0.0 0.3
168.00 0.02 5669 4.79 0.0 0.0 12.1 0.3 0.0 0.3
170.00 0.02 5640 4.78 0.0 0.0 12.0 0.3 0.0 0.3
172.00 0.02 5611 4.76 0.0 0.0 12.0 0.3 0.0 0.3
174.00 0.01 5582 4.75 0.0 0.0 12.0 0.3 0.0 0.3
176.00 0.01 5553 4.74 0.0 0.0 12.0 0.3 0.0 0.3

Peak Inflow, (Q50) = 13 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in
Q*= 2.48 in. (depth of runoff
Vol= 35,434 cf (vol. of runoff
Time to Peak, (Tp) 31.94 minutes
(SCS TR-55)
>1tv -Q Qu t Q
(-dn) i-&2
0.00 0.000 0.00 0.00
0.06 0.010 2.00 0.13
0.13 0.038 4.00 0.51
0.19 0.085 6.00 1.13
0.25 0.147 8.00 1.96
0.31 0.223 10.00 2.97
0.38 0.310 12.00 4.12
0.44 0.404 14.00 5.37
0.50 0.502 16.00 6.67
0.56 0.599 18.00 7.97
0.63 0.693 20.00 9.22
0.69 0.780 22.00 10.37
0.75 0.855 24.00 11.38
0.81 0.917 26.00 12.20
0.88 0.963 28.00 12.81
0.94 0.991 30.00 13.18
1.00 1.000 32.00 13.30
1.06 0.990 34.00 13.17
1.13 0.961 36.00 12.78
1.19 0.914 38.00 12.15
1.25 0.852 40.00 11.33
1.32 0.785 42.00 10.45
1.38 0.724 44.00 9.63
1.44 0.667 46.00 8.88
sA13111W02%ca1cs%Wd2 pm teG 10/0M 2:34 PM
S=
2.66 in.
Page 7 of 13
The ' 1/
1.50 0.615 48.00 8.18
1.57 0.567 50.00 7.54
1.63 0.523 52.00 6.95
1.69 0.482 54.00 6.41
1.75 0.444 56.00 5.91
1.82 0.409 58.00 5.45
1.88 0.377 60.00 5.02
1.94 0.348 62.00 4.63
2.00 0.321 64.00 4.27
2.07 0.296 66.00 3.93
2.13 0.273 68.00 3.63
2.19 0.251 70.00 3.34
2.25 0.232 72.00 3.08
2.32 0.213 74.00 2.84
2.38 0.197 76.00 2.62
2.44 0.181 78.00 2.41
2.50 0.167 80.00 2.22
2.57 0.154 82.00 2.05
2.63 0.142 84.00 1.89
2.69 0.131 86.00 1.74
2.76 0.121 88.00 1.61
2.82 0.111 90.00 1.48
2.88 0.103 92.00 1.36
2.94 0.095 94.00 1.26
3.01 0.087 96.00 1.16
3.07 0.080 98.00 1.07
3.13 0.074 100.00 0.99
3.19 0.068 102.00 0.91
3.26 0.063 104.00 0.84
3.32 0.058 106.00 0.77
3.38 0.053 108.00 0.71
3.44 0.049 110.00 0.66
3.51 0.045 112.00 0.60
3.57 0.042 114.00 0.56
3.63 0.039 116.00 0.51
3.69 0.036 118.00 0.47
3.76 0.033 120.00 0.44
3.82 0.030 122.00 0.40
3.88 0.028 124.00 0.37
3.95 0.026 126.00 0.34
4.01 0.024 128.00 0.32
4.07 0.022 130.00 0.29
4.13 0.020 132.00 0.27
4.20 0.019 134.00 0.25
4.26 0.017 136.00 0.23
4.32 0.016 138.00 0.21
4.38 0.015 140.00 0.19
4.45 0.013 142.00 0.18
4.51 0.012 144.00 0.16
4.57 0.011 146.00 0.15
4.63 0.011 148.00 0.14
4.70 0.010 150.00 0.13
4.76 0.009 152.00 0.12
4.82 0.008 154.00 0.11
4.88 0.008 156.00 0.10
4.95 0.007 158.00 0.09
5.01 0.006 160.00 0.09
s:%1311wo02malcsNwcj2 pdrted ION= 234 PM Page 8 of 13
Pre
!The serve E D D
Storm
Ro uting. Table
- WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) iskZ (cf) (ft) (cfs) (cfs) cfs istsi WS)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.13 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.51 15 0.26 0.0 0.0 0.4 0.1 0.0 0.1
6.00 1.13 69 0.55 0.0 0.0 1.4 0.1 0.0 0.1
8.00 1.96 194 0.91 0.0 0.0 2.9 0.1 0.0 0.1
10.00 2.97 415 1.32 0.0 0.0 4.9 0.1 0.0 0.1
12.00 4.12 754 1.78 0.0 0.0 6.3 0.2 0.0 0.2
14.00 5.37 1230 2.26 0.0 0.0 7.6 0.2 0.0 0.2
16.00 6.67 1853 2.76 0.0 0.0 8.6 0.2 0.0 0.2
18.00 7.97 2630 3.28 0.0 0.0 9.6 0.2 0.0 0.2
20.00 9.22 3561 3.81 0.0 0.0 10.5 0.2 0.0 0.2
22.00 10.37 4639 4.34 0.0 0.0 11.4 0.2 0.0 0.2
24.00 11.38 5854 4.87 0.0 0.0 12.2 0.3 0.0 0.3
26.00 12.20 7188 5.38 6.2 95.5 12.9 0.3 0.0 6.5
28.00 12.81 7871 5.63 13.1 122.5 13.2 0.3 0.0 13.4
30.00 13.18 7798 5.60 12.3 119.9 13.2 0.3 0.0 12.6
32.00 13.30 7866 5.63 13.1 122.3 13.2 0.3 0.0 13.4
34.00 13.17 7859 5.62 13.0 122.1 13.2 0.3 0.0 13.3
36.00 12.78 7845 5.62 12.8 121.6 13.2 0.3 0.0 13.1
38.00 12.15 7803 5.60 12.4 120.1 13.2 0.3 0.0 12.7
40.00 11.33 7741 5.58 11.7 117.9 13.2 0.3 0.0 12.0
42.00 10.45 7661 5.55 10.9 115.0 13.1 0.3 0.0 11.1
44.00 9.63 7577 5.52 10.0 111.8 13.1 0.3 0.0 10.3
46.00 8.88 7499 5.50 9.2 108.8 13.0 0.3 0.0 9.5
48.00 8.18 7426 5.47 8.5 105.9 13.0 0.3 0.0 8.8
50.00 7.54 7357 5.44 7.8 103.0 13.0 0.3 0.0 8.1
52.00 6.95 7292 5.42 7.2 100.2 12.9 0.3 0.0 7.5
54.00 6.41 7230 5.40 6.6 97.5 12.9 0.3 0.0 6.9
56.00 5.91 7172 5.38 6.1 94.8 12.9 0.3 0.0 6.4
58.00 5.45 7117 5.36 5.6 92.2 12.9 0.3 0.0 5.9
60.00 5.02 .7065 5.34 5.2 89.7 12.8 0.3 0.0 5.4
62.00 4.63 7016 5.32 4.7 87.2 12.8 0.3 0.0 5.0
64.00 4.27 6970 5.30 4.4 84.8 12.8 0.3 0.0 4.6
66.00 3.93 6926 5.28 4.0 82.4 12.8 0.3 0.0 4.3
68.00 3.63 6884 5.27 3.7 80.1 12.7 0.3 0.0 4.0
70.00 3.34 6845 5.25 3.4 77.9 12.7 0.3 0.0 3.7
72.00 3.08 6807 5.24 3.1 75.7 12.7 0.3 0.0 3.4
74.00 2.84 6772 5.23 2.8 73.6 12.7 0.3 0.0 3.1
76.00 2.62 6739 5.21 2.6 71.5 12.7 0.3 0.0 2.9
78.00 2.41 6707 5.20 2.4 69.4 12.6 0.3 0.0 2.7
80.00 2.22 6677 5.19 2.2 67.4 12.6 0.3 0.0 2.5
82.00 2.05 6648 5.18 2.0 65.5 12.6 0.3 0.0 2.3
84.00 1.89 6621 5.17 1.8 63.5 12.6 0.3 0.0 2.1
86.00 1.74 6596 5.16 1.7 61.7 12.6 0.3 0.0 1.9
88.00 1.61 6571 5.15 1.5 59.8 12.6 0.3 0.0 1.8
90.00 1.48 6548 5.14 1.4 58.0 12.6 0.3 0.0 1.7
92.00 1.36 6526 5.13 1.3 56.2 12.5 0.3 0.0 1.5
94.00 1.26 6505 5.12 1.2 54.5 12.5 0.3 0.0 1.4
96.00 1.16 6485 5.12 1.0 52.8 12.5 0.3 0.0 1.3
98.00 1.07 6466 5.11 1.0 51.1 12.5 0.3 0.0 1.2
100.00 0.99 6448 5.10 0.9 49.4 12.5 0.3 0.0 1.1
102.00 0.91 6431 5.10 0.8 47.7 12.5 0.3 0.0 1.0
104.00 0.84 6415 5.09 0.7 46.1 12.5 0.3 0.0 1.0
106.00 0.77 6399 5.08 0.6 44.5 12.5 0.3 0.0 0.9
108.00 0.71 6384 5.08 0.6 42.9 12.5 0.3 0.0 0.8
110.00 0.66 6370 5.07 0.5 41.3 12.5 0.3 0.0 0.8
112.00 0.60 6356 5.07 0.4 39.7 12.5 0.3 0.0 0.7
114.00 0.56 6343 5.06 0.4 38.1 12.4 0.3 0.0 0.7
116.00 0.51 6330 5.06 0.3 36.5 12.4 0.3 0.0 0.6
118.00 0.47 6318 5.05 0.3 34.9 12.4 0.3 0.0 0.6
120.00 0.44 6306 5.05 0.3 33.3 12.4 0.3 0.0 0.5
5:3aa2 k:iw,2 0.40 6295 5.04 Oi2,cea 100W 238hAM 12.4 0.3 0.0 O[§ige 9 of 13
124.00
126.00
128.00
130.00
132.00
134.00
136.00
138.00
140.00
142.00
144.00
146.00
148.00
150.00
152.00
154.00
156.00
158.00
160.00 0.37
0.34
0.32
0.29
0.27
0.25
0.23
0.21
0.19
0.18
0.16
0.15
0.14
0.13
0.12
0.11
0.10
0.09
0.09 6284
6273
6263
6253
6243
6233
6224
6214
6204
6194
6183
6171
6158
6143
6126
6109
6090
6071
6050 5.04
5.03
5.03
5.03
5.02
5.02
5.01
5.01
5.01
5.00
5.00
4.99
4.99
4.98
4.98
4.97
4.96
4.95
4.94 0.2
0.2
0.1
0.1
0.1
0.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 30.0
28.3
26.5
24.7
22.7
20.6
18.2
15.5
12.1
7.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 12.4
12.4
12.4
12.4
12.4
12.4
12.4
12.4
12.4
12.4
12.4
12.3
12.3
12.3
12.3
12.3
12.3
12.3
12.3 0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3 0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 0.5
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Inflow og .p 1 00-yr
Peak Inflow, (Q100) = 16 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoff)
Vol= 49,446 cf (vol. of runoff
Time to Peak, (Tp) => 38.20 minutes
(SCS TR-55)
Y ?Q t s

0.00 0.000 0.00 0.00
0.06 0.007 2.00 0.10
0.13 0.027 4.00 0.42
0.19 0.060 6.00 0.93
0.25 0.104 8.00 1.62
0.31 0.160 10.00 2.48
0.38 0.224 12.00 3.48
0.44 0.296 14.00 4.60
0.50 0.374 16.00 5.80
0.56 0.455 18.00 7.06
0.63 0.537 20.00 8.33
0.69 0.618 22.00 9.59
0.75 0.696 24.00 10.80
0.81 0.769 26.00 11.93
0.88 0.834 28.00 12.95
0.94 0.891 30.00 13.82
1.00 0.936 32.00 14.53
1.06 0.970 34.00 15.06
1.13 0.992 36.00 15.39
1.19 1.000 38.00 15.52
1.25 0.995 40.00 15.44
1.32 0.976 42.00 15.14
1.38 0.944 44.00 14.65
1.44 0.901 46.00 13.98
1.50 0.847 48.00 13.15
1.57 0.792 50.00 12.29
1.63 0.740 52.00 11.48
1.69 0.691 54.00 10.72
1.75 0.645 56.00 10.02
1.82 0.603 58.00 9.36
1.88 0.563 60.00 8.74
sA1311W0021eales%Wg2 printed I0J8f002:34 PM Page 10 of 13
1.94 0.526 62.00 8.17
2.00 0.492 64.00 7.63
2.07 0.459 66.00 7.13
2.13 0.429 68.00 6.66
2.19 0.401 70.00 6.22
2.25 0.374 72.00 5.81
2.32 0.350 74.00 5.43
2.38 0.327 76.00 5.07
2.44 0.305 78.00 4.74
2.50 0.285 80.00 4.43
2.57 0.266 82.00 4.14
2.63 0.249 84.00 3.86
2.69 0.233 86.00 3.61
2.76 0.217 88.00 3.37
2.82 0.203 90.00 3.15
2.88 0.190 92.00 2.94
2.94 0.177 94.00 2.75
3.01 0.165 96.00 2.57
3.07 0.155 98.00 2.40
3.13 0.144 100.00 2.24
3.19 0.135 102.00 2.09
3.26 0.126 104.00 1.96
3.32 0.118 106.00 1.83
3.38 0.110 108.00 1.71
3.44 0.103 110.00 1.59
3.51 0.096 112.00 1.49
3.57 0.090 114.00 1.39
3.63 0.084 116.00 1.30
3.69 0.078 118.00 1.21
3.76 0.073 120.00 1.13
3.82 0.068 122.00 1.06
3.88 0.064 124.00 0.99
3.95 0.060 126.00 0.93
4.01 0.056 128.00 0.86
4.07 0.052 130.00 0.81
4.13 0.049 132.00 0.75
4.20 0.045 134.00 0.70
4.26 0.042 136.00 0.66
4.32 0.040 138.00 0.61
4.38 0.037 140.00 0.57
4.45 0.035 142.00 0.54
4.51 0.032 144.00 0.50
4.57 0.030 146.00 0.47
4.63 0.028 148.00 0.44
4.70 0.026 150.00 0.41
4.76 0.025 152.00 0.38
4.82 0.023 154.00 0.36
4.88 0.021 156.00 0.33
4.95 0.020 158.00 0.31
5.01 0.019 160.00 0.29
5.07 0.018 162.00 0.27
5.13 0.016 164.00 0.25
5.20 0.015 166.00 0.24
5.26 0.014 168.00 0.22
sAl311%0002%caloslWcj2 p uteQ 10 WW 2:34 PM Page 11 of 13
The Pre serve at Jordan L ake - DD

•, 100-vr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) (cf) 00 (cfs) (efs) (cfs) (cfs) (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.10 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.42 13 0.24 0.0 0.0 0.4 0.1 0.0 0.1
6.00 0.93 56 0.49 0.0 0.0 1.2 0.1 0.0 0.1
8.00 1.62 157 0.82 0.0 0.0 2.5 0.1 0.0 0.1
10.00 2.48 338 1.20 0.0 0.0 4.4 0.1 0.0 0.1
12.00 3.48 620 1.61 0.0 0.0 5.9 0.2 0.0 0.2
14.00 4.60 1020 2.06 0.0 0.0 7.1 0.2 0.0 0.2
16.00 5.80 1551 2.53 0.0 0.0 8.2 0.2 0.0 0.2
18.00 7.06 2225 3.02 0.0 0.0 9.1 0.2 0.0 0.2
20.00 8.33 3047 3.53 0.0 0.0 10.1 0.2 0.0 0.2
22.00 9.59 4021 4.04 0.0 0.0 10.9 0.2 0.0 0.2
24.00 10.80 5143 4.56 0.0 0.0 11.7 0.3 0.0 0.3
26.00 11.93 6409 5.09 0.7 45.5 12.5 0.3 0.0 0.9
28.00 12.95 7728 5.58 11.6 117.4 13.1 0.3 0.0 11.9
30.00 13.82 7858 5.62 13.0 122.0 13.2 0.3 0.0 13.3
32.00 14.53 7924 5.65 13.7 124.3 13.2 0.3 0.0 13.5
34.00 15.06 8045 5.69 15.1 128.3 13.3 0.3 0.0 13.6
36.00 15.39 8223 5.75 17.2 133.9 13.4 0.3 0.0 13.7
38.00 15.52 8430 5.82 19.6 140.1 13.5 0.3 0.0 13.8
40.00 15.44 8642 5.89 22.3 146.0 13.6 0.3 0.0 13.8
42.00 15.14 8832 5.96 24.7 151.1 13.6 0.3 0.0 13.9
44.00 14.65 8978 6.00 26.6 154.9 13.7 0.3 0.0 14.0
46.00 13.98 9057 6.03 27.6 156.9 13.7 0.3 0.0 14.0
48.00 13.15 9051 6.03 27.5 156.7 13.7 0.3 0.0 14.0
50.00 12.29 8946 5.99 26.2 154.1 13.7 0.3 0.0 14.0
52.00 11.48 8742 5.93 23.5 148.8 13.6 0.3 0.0 13.9
54.00 10.72 8453 5.83 19.9 140.7 13.5 0.3 0.0 13.8
56.00 10.02 8087 5.70 15.6 129.6 13.3 0.3 0.0 13.6
58.00 9.36 7658 5.55 10.8 114.9 13.1 0.3 0.0 11.1
60.00 8.74 7447 5.48 8.7 106.7 13.0 0.3 0.0 9.0
62.00 8.17 7420 5.47 8.4 105.6 13.0 0.3 0.0 8.7
64.00 7.63 7356 5.44 7.8 103.0 13.0 03 0.0 8.1
66.00 7.13 7302 5.42 7.3 100.6 12.9 0.3 0.0 7.6
68.00 6.66 7250 5.40 6.8 98.3 12.9 0.3 0.0 7.1
70.00 6.22 7200 5.39 6.3 96.1 12.9 0.3 0.0 6.6
72.00 5.81 7152 5.37 5.9 93.9 12.9 0.3 0.0 6.2
74.00 5.43 7107 5.35 5.5 91.7 12.8 0.3 0.0 5.8
76.00 5.07 7063 5.34 5.1 89.6 12.8 0.3 0.0 5.4
78.09 4.74 7022 5.32 4.8 87.5 12.8 0.3 0.0 5.1
80.00 4.43 6983 5.31 4.5 85.5 12.8 0.3 0.0 4.7
82.00 4.14 6945 5.29 4.2 83.5 12.8 0.3 0.0 4.4
84.00 3.86 6909 5.28 3.9 81.5 12.7 0.3 0.0 4.1
86.00 3.61 6875 5.27 3.6 79.6 12.7 0.3 0.0 3.9
88.00 3.37 6842 5.25 3.4 77.8 12.7 0.3 0.0 3.6
90.00 3.15 6811 5.24 3.1 75.9 12.7 0.3 0.0 3.4
92.00 2.94 6781 5.23 2.9 74.1 12.7 0.3 0.0 3.2
94.00 2.75 6752 5.22 2.7 72.3 12.7 0.3 0.0 3.0
96.00 2.57 6725 5.21 2.5 70.6 '12.7 0.3 0.0 2.8
98.00 2.40 6699 5.20 2.3 68.9 12.6 0.3 0.0 2.6
100.00 2.24 6674 5.19 2.2 67.2 12.6 0.3 0.0 2.4
102.00 2.09 6650 5.18 2.0 65.6 12.6 0.3 0.0 2.3
104.00 1.96 6627 5.17 1.9 63.9 12.6 0.3 0.0 2.1
106.00 1.83 6605 5.16 1.7 62.3 12.6 0.3 0.0 2.0
108.00 1.71 6584 5.15 1.6 60.8 12.6 0.3 0.0 1.9
110.00 1.59 6564 5.15 1.5 59.2 12.6 0.3 0.0 1.8
112.00 1.49 6545 5.14 1.4 57.7 12.6 0.3 0.0 1.6
114.00 1.39 6526 5.13 1.3 56.2 12.5 0.3 0.0 1.5
116.00 1.30 6508 5.13 1.2 54.7 12.5 0.3 0.0 1.4
118.00 1.21 6491 5.12 1.1 53.3 12.5 0.3 0.0 1.4
120.00 1.13 6475 5.11 1.0 51.9 12.5 0.3 0.0 1.3
s:x123&%-w-%wcq 1.06 6460 5.11 0 49 rtL& lw= ;6fi.w1A 12.5 0.3 0.0 PQe 12 of 13
Pr
The eserve Jordan 1/
124.00 0.99 6445 5.10 0.8 49.0 12.5 0.3 0.0 1.1
126.00 0.93 6430 5.10 0.8 47.6 12.5 0.3 0.0 1.0
128.00 0.86 6416 5.09 0.7 46.3 12.5 0.3 0.0 1.0
130.00 0.81 6403 5.08 0.6 44.9 12.5 0.3 0.0 0.9
132.00 0.75 6390 5.08 0.6 43.5 12.5 0.3 0.0 0.9
134.00 0.70 6378 5.07 0.5 42.2 12.5 0.3 0.0 0.8
136.00 0.66 6366 5.07 0.5 40.8 12.5 0.3 0.0 0.8
138.00 0.61 6354 5.07 0.4 39.5 12.5 0.3 0.0 0.7
140.00 0.57 6343 5.06 0.4 38.2 12.4 0.3 0.0 0.7
142.00 0.54 6332 5.06 0.4 36.8 12.4 0.3 0.0 0.6
144.00 0.50 6322 5.05 0.3 35.5 12.4 0.3 0.0 0.6
146.00 0.47 6312 5.05 0.3 34.1 12.4 0.3 0.0 0.5
148.00 0.44 6302 5.04 0.3 32.7 12.4 0.3 0.0 0.5
150.00 0.41 6293 5.04 0.2 31.3 12.4 0.3 0.0 0.5
152.00 0.38 6283 5.04 0.2 29.9 12.4 0.3 0.0 0.5
154.00 0.36 6274 5.03 0.2 28.4 12.4 0.3 0.0 0.4
156.00 0.33 6265 5.03 0.1 26.9 12.4 0.3 0.0 0.4
158.00 0.31 6257 5.03 0.1 25.4 12.4 0.3 0.0 0.4
160.00 0.29 6248 5.02 0.1 23.7 12.4 0.3 0.0 0.4
162.00 0.27 6240 5.02 0.1 22.0 12.4 0.0 0.1
164.00 0.25 6263 5.03 0.1 26.6 12.4 0.0 0.1
166.00 0.24 6278 5.04 0.2 29.0 12.4 0.0 0.2
168.00 0.22 6285 5.04 0.2 30.2 12.4 0.0 0.2
sA1311100024a bstwq2 Mrded (019/002.3/ PM Page 13 of 13
ANTI FLOTATION DESIGN FOR PERMANENT WATER QUALI TY POND #2
I
FLOTATION OF RISER

RISER DIMENSIONS
et
0 f
2
Inside Dimensions Width = e
.
0 feet
2
Length = .

ELEV. c@ TOP OF RISER =
ELEV. R BOT. OF RISER =
H = 303.00
298.00
5.00 ft
AREA OF RISER = 4.0 SF
VOLUME OF RISER = 20.0 Cubic Feet

DIAMETER OF BARREL = 15 Inch
AREA OF BARREL = 1.2 SF
EXPOSED LENGTH = I 6.00 ft
VOLUME OF BARREL = 7.4 Cubic Feet

WEIGHT OF WATER DISPLACED = 1707.46 lb
FACTOR OF SAFETY (109/6) 1878.20 lb

VOLUME OF CONCRETE ANCHOR = 21.4 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension 21x21
Weight of Concrete 3100 lb

ANIT-FLOTATION WEIGHT REQUIRED =
ANIT-FLOTATION VOLUME REQUIRED = -1222 lb
-13.9 Cubic Feet

ANTI-FLOTATION PAD REQUIRED
DEPTH = 0.00 ft
WIDTH = 0.00 ft
LENGTH = 0.00 ft

VOLUME PROVIDED = 0.0 Cubic Feet

SO, NO CONCRETE PAD REQUIRED

I
FES AT PERMANENT WATER QUALITY POND #2
flow Q in cfs : 13 Flow depth (ft) = 1.25
slope S in ft/ft :.0166 Outlet velocity (fps) = 10.593
pipe diameter Din ft : 1.25
Manning number n :.012
For a pipe diameter of 1.25 feet and
an outlet velocity of 10.59 feet per second:
The recommended apron length is 7.50 feet.
The maximum stone diameter is 16.6 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 6 B 22
MIIPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #3
# Lots s.fJLot Total
27 6,500 175,500
Roadways 29,620 s.f.
Lots (houses, drives, etc.) 175,500 s.f.
Sidewalks - s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 205,120 s.f.
Total Area = 14.98 ac.
Impervious Area = 4.71 ac.
Impervious Percentage = 31.4%
The storage volume for the 1" storm (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.333
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.41519567 ac.ft.
18,086 cf
18,086 c.t storage required.
21,703 c.L required Including an additional 20% for sediment storage
21,773 c.t storage provided.
storage Provided
Incremental Total
Elev. Area (s f) Volume (c.f.) Volume (c.f.) Depth (ft)
328 3,155
8,524 8,524
330 5,369
13,249 21,773
332 7,880
Drawdown..calculation
Orifice required for 2-5 Day Drawdown
4.0 feet of storage so, say 2.0 feet of average head
Using a 1.5" orifice Q2-day= 14,433
Q = 0.08 cfs Q5-day= 36,081
So, a 1.5" Orifice will drawdown pond in 3.02 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
2
4
Preserve 'The Jordan /1
DESIGN REQUIREMENTS:
A Pond Routing - Store i" inch of impervious runoff.

'o 1 op 10-yr
Drainage Area, (DA) = 14.98 acres
Overland Flow
Elevation of most remote point, (HI) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (Hl) = 410.0 feet
Elevation of point of design, (H2) = 328.0 feet
Length of travel, (L) = 1144.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 4.9 minutes
Pipe Flow
Elevation of most remote point, (H 1) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (To) 5.0 minutes
Intensity, (1) = 7.22 inches/hr
Area 1 (Impervious) = 4.71 acres
Area 2 (Pervious) = 10.27 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient (C) _> 0.44
Peak Release Rate, (Qlo) _> 47 cfs
Post-D-evelopment off
Drainage Area, (DA) = 14.98 acres
Time $f Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) _> 0.44
Peak Release Rate, (Qu) _> 54 cfs
-Post-Development Runoff 100-yr
Drainage Area, (DA) = 14.98 acres
Time of Concentration, (Tc)
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Qloo) _>
5.0 minutes
9.67 inches
0.44
63 cfs
sA1311W0021ca1as%Wg3 printed 10MM 1:49 PM Page 1 of 13
:The Pr eserve at Jordan L ake - 11 i
Stage - S torage Func tion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
328 2,451 '
330 4,727 7,178 7,178 2.00 8.88 0.69 2.01
332.0 7,354 12,081 19,259 4.00 9.87 1.39 3.92
334.0 10,289 17,643 36,902 6.00 10.52 1.79 6.08
Check
Stage Storage
2 7,099
4 19,846
7 45,511
Regression Output
b° 1.48 (X Variable Coeff)
K 2,539 (eY °""°°"`)
Stage - Storage Equation is of the form: S = (KsxZ)
Stage-- Discharge Relationship
Bottom Dry Pond Elevation 328.0 feet
Water Surface Elev. (Qio) = 333.10 feet
Water Surface Elev. (Qm) = 333.38 feet
Water Surface Elev. (Q100) = 333.74 feet
Bartel
Dia. of Barrel = 24 inches
Area of Barrel, (Ab) = 3.14 sf
Pipe Length, (L) = 50.0 feet
Friction Coeff., (Kp) = 0.01058
Inv. of Barrel = 328.00 feet
Riser
Elev. of Riser Crest = 332.00 feet
Circular.
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 1.5 0.0123
s:N311100021wks\W¢i pinked 10191003:19 PM
Page 2 of 13
The Preserve at Jordan Lake - EDD `VQ# 3
Rectangular:
Length of Riser = 4 feet
Width of Riser = 4 feet
Weir Length = 16 feet
Area of Riser = 16 sq.ft.
Width of Spillway (Approx.) = 15 feet
Weir Coefficient = 3.0
Crest Elevation = 333 feet
s:%131114002maIcsIwaa aid 1 OMM 1:49 PM Page 3 of 13
Preserve it •
1
Inflow Hydrop
graph - Peak Inflow, (Q10) => 47 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff)
Vol= 102,372 cf (vol. of runofl)
Time to Peak, (Tp) => 26.03 minutes
(SCS TR-55)
tiff QLQR t s
(min) (Cls)
0.00 0.000 0 0.00
0.08 0.014 2 0.68
0.15 0.057 4 2.69
0.23 0.125 6 5.91
0.31 0.215 8 10.16
0.38 0.322 10 15.18
0.46 0.439 12 20.69
0.54 0.559 14 26.37
0.61 0.676 16 31.88
0.69 0.783 18 36.91
0.77 0.873 20 41.17
0.85 0.942 22 44.41
0.92 0.985 24 46.44
1.00 1.000 26 47.15
1.08 0.986 28 46.49
1.15 0.944 30 44.50
1.23 0.876 32 41.30
1.31 0.795 34 37.46
1.38 0.719 36 33.90
1.46 0.651 38 30.68
1.54 0.589 40 27.77
1.61 0.533 42 25.13
1.69 0.482 44 22.74
1.77 0.436 46 20.58
1.84 0.395 48 18.62
1.92 0.357 50 16.85
2.00 0.323 52 15.25
2.07 0.293 54 13.80
2.15 0.265 56 12.49
2.23 0.240 58 11.30
2.30 0.217 60 10.23
2.38 0.196 62 9.26
2.46 0.178 64 8.38
2.54 0.161 66 7.58
2.61 0.145 68 6.86
2.69 0.132 70 6.21
2.77 0.119 72 5.62
2.84 0.108 74 5.08
2.92 0.098 76 4.60
3.00 0.088 78 4.16
3.07 0.080 80 3.77
3.15 0.072 82 3.41
3.23 0.065 84 3.09
3.30 0.059 86 2.79
3.38 0.054 88 2.53
3.46 0.048 90 2.29
3.53 0.044 92 2.07
3.61 0.040 94 1.87
3.69 0.036 96 1.69
3.76 0.033 98 1.53
3.84 0.029 100 1.39
3.92 0.027 102 1.26
sAl311100021csks\W¢i pitted 10MM 1:49 PM
Page 4 of 13
Preserve The it
3.99 0.024 104 1.14
4.07 0.022 106 1.03
4.15 0.020 108 0.93
4.23 0.018 110 0.84
4.30 0.016 112 0.76
4.38 0.015 114 0.69
4.46 0.013 116 0.62
4.53 0.012 118 0.56
4.61 0.011 120 0.51
4.69 0.010 122 0.46
4.76 0.009 124 0.42
4.84 0.008 126 0.38
4.92 0.007 128 0.34
4.99 0.007 130 0.31
5.07 0.006 132 0.28
5.15 0.005 134 0.25
5.22 0.005 136 0.23
5.30 0.004 138 0.21
5.38 0.004 140 0.19
5.45 0.004. 142 0.17
5.53 0.003 144 0.15
5.61 0.003 146 0.14
5.68 0.003 148 0.13
5.76 0.002 150 0.11
5.84 0.002 152 0.10
5.92 0.002 154 0.09
5.99 0.002 156 0.08
6.07 0.002 158 0.08
6.15 0.001 160 0.07
6.22 0.001 162 0.06
6.30 0.001 164 0.06
6.38 0.001 166 0.05
6.45 0.001 168 0.05
6.53 0.001 170 0.04
6.61 0.001 172 0.04
6.68 0.001 174 0.03
6.76 0.001 176 0.03
s:n3»woozucalc&AWcp printed 1GOW 1:48 PM Page 5 of 13
'The Pre serve at Jordan L ake - E DD WQ# 3

,Storm I
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) (cfs) (cf) ift-1 (cfs) (?? cfs (Cfs) (cfs) (efs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.68 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 2.69 82 0.10 0.0 194.3 0.2 0.1 0.0 0.1
6.00 5.91 387 0.28 0.0 328.0 0.8 0.3 0.0 0.3
8.00 10.16 1067 0.56 0.0 461.5 2.2 0.4 0.0 0.4
10.00 15.18 2243 0.92 0.0 592.9 4.7 0.5 0.0 0.5
12.00 20.69 4011 1.36 0.0 721.2 8.5 0.6 0.0 0.6
14.00 26.37 6427 1.87 0.0 845.5 13.7 0.6 0.0 0.6
16.00 31.88 9513 2.44 0.0 965.0 18.1 0.7 0.0 0.7
18.00 36.91 13250 3.05 0.0 1079.0 21.6 0.8 0.0 0.8
20.00 41.17 17580 3.69 0.0 1187.0 24.8 0.9 0.0 0.9
22.00 44.41 22412 4.34 10.6 1288.2 27.7 1.0 0.0 11.5
24.00 46.44 26357 4.84 40.9 1360.6 29.7 1.0 0.0 30.7
26.00 47.15 28246 5.07 58.8 1392.7 30.5 1.1 0.9 32.5
28.00 46.49 30001 5.29 76.9 1421.3 31.3 1.1 6.9 39.3
30.00 44.50 30868 5.39 86.3 1435.0 31.7 1.1 10.9 43.7
32.00 41.30 30970 5.40 87.4 1436.6 31.7 1.1 11.4 44.2
34.00 37.46 30621 5.36 83.6 1431.2 31.6 1.1 9.7 42.3
36.00 33.90 30035 5.29 77.3 1421.9 31.3 1.1 7.0 39.4
38.00 30.68 29373 5.21 70.3 1411.2 31.0 1.1 4.3 36.5
40.00 27.77 28679 5.13 63.2 1399.9 30.7 1.1 2.0 33.8
42.00 25.13 27950 5.04 55.9 1387.8 30.4 1.1 0.3 31.8
44.00 22.74 27148 4.94 48.2 1374.2 30.0 1.1 0.0 31.1
46.00 20.58 26146 4.82 39.0 1356.9 29.6 1.0 0.0 30.6
48.00 18.62 24944 4.67 28.7 1335.6 29.0 1.0 0.0 29.8
50.00 16.85 23606 4.50 18.5 1311.0 28.3 1.0 0.0 19.5
52.00 15.25 23291 4.46 16.3 1305.0 28.1 1.0 0.0 17.3
54.00 13.80 23050 4.42 14.6 1300.5 28.0 1.0 0.0 15.6
56.00 12.49 22832 4.40 13.2 1296.3 27.9 1.0 0.0 14.2
58.00 11.30 22629 4.37 11.9 1292.4 27.8 1.0 0.0 12.9
60.00 10.23 22440 4.35 10.7 1288.8 27.7 1.0 0.0 11.7
62.00 9.26 22262 4.32 9.7 1285.3 27.6 1.0 0.0 10.6
64.00 8.38 22095 4.30 8.7 1282.1 27.5 1.0 0.0 9.7
66.00 7.58 21939 4.28 7.8 1279.0 27.4 1.0 0.0 8.8
68.00 6.86 21793 4.26 7.0 1276.1 27.3 1.0 0.0 8.0
70.00 6.21 21656 4.24 6.3 1273.4 27.2 1.0 0.0 7.3
72.00 5.62 21527 4.23 5.7 1270.8 27.2 1.0 0.0 6.6
74.00 5.08 21406 4.21 5.1 1268.4 27.1 1.0 0.0 6.0
76.00 4.60 21292 4.19 4.5 1266.2 27.0 1.0 0.0 5.5
78.00 4.16 21185 4.18 4.0 1264.0 27.0 1.0 0.0 5.0
80.00 3.77 21084 4.17 3.6 1262.0 26.9 1.0 0.0 4.6
82.00 3.41 20989 4.15 3.2 1260.1 26.9 1.0 0.0 4.2
84.00 3.09 20899 4.14 2.8 1258.2 26.8 1.0 0.0 3.8
86.00 2.79 20815 4.13 2.5 1256.5 26.8 1.0 0.0 3.5
88.00 2.53 20735 4.12 2.2 1254.9 26.7 1.0 0.0 3.2
90.00 2.29 20659 4.11 1.9 1253.3 26.7 1.0 0.0 2.9
92.00 2.07 20587 4.10 1.7 1251.9 26.6 1.0 0.0 2.6
94.00 1.87 20520 4.09 1.5 1250.5 26.6 1.0 0.0 2.4
96.00 1.69 20455 4.08 1.2 1249.2 26.6 1.0 0.0 2.2
98.00 1.53 20393 4.07 1.1 1247.9 26.5 1.0 0.0 2.0
100.00 1.39 20335 4.07 0.9 1246.7 26.5 1.0 0.0 1.9
102.00 1.26 20279 4.06 0.7 1245.5 26.5 1.0 0.0 1.7
104.00 1.14 20225 4.05 0.6 1244.4 26.4 1.0 0.0 1.6
106.00 1.03 20173 4.04 0.5 1243.3 26.4 1.0 0.0 1.4
108.00 0.93 20123 4.04 0.4 1242.3 26.4 1.0 0.0 1.3
110.00 0.84 20074 4.03 0.3 1241.3 26.3 1.0 0.0 1.2
112.00 0.76 20026 4.02 0.2 1240.3 26.3 1.0 0.0 1.2
114.00 0.69 19979 4.02 0.1 1239.3 26.3 1.0 0.0 1.1
116.00 0.62 19932 4.01 0.1 1238.3 26.3 0.9 0.0 1.0
118.00 0.56 19885 4.01 0.0 1237.3 26.2 0.9 0.0 1.0
120.00 0.51 19837 4.00 0.0 1236.3 26.2 0.9 0.0 0.9
::3$t2vQ6zwalcs%wcp 0.46 19784 3.99 OAntae lQ mdlU5t2 26.2 0.9 0.0 Pao% of 13
124.00 0.42 19726 3.98 0.0 1234.0 26.1 0.9 0.0 0.9
126.00 0.38 19663 3.98 0.0 1232.6 26.1 0.9 0.0 0.9
128.00 0.34 19595 3.97 0.0 1231.2 26.1 0.9 0.0 0.9
130.00 0.31 19522 3.96 0.0 1229.7 26.0 0.9 0.0 0.9
132.00 0.28 19446 3.95 0.0 1228.0 26.0 0.9 0.0 0.9
134.00 0.25 19367 3.93 0.0 1226.3 25.9 0.9 0.0 0.9
136.00 0.23 19285 3.92 0.0 1224.6 25.9 0.9 0.0 0.9
138.00 0.21 19200 3.91 0.0 1222.8 25.8 0.9 0.0 0.9
140.00 0.19 19112 3.90 0.0 1220.9 25.8 0.9 0.0 0.9
142.00 0.17 19022 3.89 0.0 1218.9 25.7 0.9 0.0 0.9
144.00 0.15 18931 3.87 0.0 1217.0 25.6 0.9 0.0 0.9
146.00 0.14 18837 3.86 0.0 1214.9 25.6 0.9 0.0 0.9
148.00 0.13 18742 3.85 0.0 1212.9 25.5 0.9 0.0 0.9
150.00 0.11 18645 3.84 0.0 1210.8 25.5 0.9 0.0 0.9
152.00 0.10 18548 3.82 0.0 1208.6 25.4 0.9 0.0 0.9
154.00 0.09 18449 3.81 0.0 1206.4 25.3 0.9 0.0 0.9
156.00 0.08 18349 3.79 0.0 1204.2 25.3 0.9 0.0 0.9
158.00 0.08 18248 3.78 0.0 1202.0 25.2 0.9 0.0 0.9
160.00 0.07 18147 3.77 0.0 1199.7 25.2 0.9 0.0 0.9
162.00 0.06 18045 3.75 0.0 1197.5 25.1 0.9 0.0 0.9
164.00 0.06 17942 3.74 0.0 1195.2 25.0 0.9 0.0 0.9
166.00 0.05 17839 3.72 0.0 1192.8 25.0 0.9 0.0 0.9
168.00 0.05 17735 3.71 0.0 1190.5 24.9 0.9 0.0 0.9
170.00 0.04 17631 3.69 0.0 1188.1 24.8 0.9 0.0 0.9
172.00 0.04 17527 3.68 0.0 1185.8 24.8 0.9 0.0 0.9
174.00 0.03 17423 3.66 0.0 1183.4 24.7 0.9 0.0 0.9
176.00 0.03 17318 3.65 0.0 1181.0 24.6 0.9 0.0 0.9
Peak Inflow, (Q50) = 54 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in
Q*= 2.48 in. (depth of runoff
Vol= 134,720 cf (vol. of runoff
Time to Peak, (Tp) => 29.86 minutes
(SCS TR-55)
Y-!R QQE t s
(min) (Cfs)
0.00 0.000 0.00 0.00
0.07 0.011 2.00 0.60
0.13 0.044 4.00 2.36
0.20 0.096 6.00 5.21
0.27 0.167 8.00 9.03
0.33 0.252 10.00 13.64
0.40 0.348 12.00 18.84
0.47 0.451 14.00 24.40
0.54 0.556 16.00 30.08
0.60 0.659 18.00 35.63
0.67 0.754 20.00 40.80
0.74 0.838 22.00 45.36
0.80 0.908 24.00 49.11
0.87 0.959 26.00 51.89
0.94 0.990 28.00 53.58
1.00 1.000 30.00 54.09
1.07 0.987 32.00 53.41
1.14 0.953 34.00 51.57
1.21 0.899 36.00 48.65
1.27 0.830 38.00 44.89
1.34 0.761 40.00 41.15
1.41 0.697 42.00 37.72
1.47 0.639 44.00 34.57
1.54 0.586 46.00 31.69
s:%13111CW21eales%WcP pdrtect ICI&M 1:49 PM
S=
2.66 in.
Page 7 of 13
1.61 0.537 48.00 29.05
1.67 0.492 50.00 26.63
1.74 0.451 52.00 24.41
1.81 0.414 54.00 22.37
1.88 0.379 56.00 20.51
1.94 0.347 58.00 18.80
2.01 0.319 60.00 17.23
2.08 0.292 62.00 15.79
2.14 0.268 64.00 14.48
2.21 0.245 66.00 13.27
2.28 0.225 68.00 12.16
2.34 0.206 70.00 11.15
2.41 0.189 72.00 10.22
2.48 0.173 74.00 9.37
2.55 0.159 76.00 8.59
2.61 0.145 78.00 7.87
2.68 0.133 80.00 7.21
2.75 0.122 82.00 6.61
2.81 0.112 84.00 6.06
2.88 0.103 86.00 5.56
2.95 0.094 88.00 5.09
3.01 0.086 90.00 4.67
3.08 0.079 92.00 4.28
3.15 0.072 94.00 3.92
3.21 0.066 96.00 3.59
3.28 0.061 98.00 3.29
3.35 0.056 100.00 3.02
3.42 0.051 102.00 2.77
3.48 0.047 104.00 2.54
3.55 0.043 106.00 2.33
3.62 0.039 108.00 2.13
3.68 0.036 110.00 1.95
3.75 0.033 112.00 1.79
3.82 0.030 114.00 1.64
3.88 0.028 116.00 1.50
3.95 0.026 118.00 1.38
4.02 0.023 120.00 1.26
4.09 0.021 122.00 1.16
4.15 0.020 124.00 1.06
4.22 0.018 126.00 0.97
4.29 0.017 128.00 0.89
4.35 0.015 130.00 0.82
4.42 0.014 132.00 0.75
4.49 0.013 134.00 0.69
4.55 0.012 136.00 0.63
4.62 0.011 138.00 0.58
4.69 0.010 140.00 0.53
4.76 0.009 142.00 0.49
4.82 0.008 144.00 0.44
4.89 0.008 146.00 0.41
4.96 0.007 148.00 0.37
5.02 0.006 150.00 0.34
5.09 0.006 152.00 0.31
5.16 0.005 154.00 0.29
5.22 0.005 156.00 0.26
5.29 0.004 158.00 0.24
5.36 0.004 160.00 0.22
sAl3ll%00o2koxsXWcp pitted 1016M 1:49 PM Page 8 of 13
'The Pr eserve at Jordan

WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cam Lca- ift-1 (cfs) (Cfs) (Cfs) (cfs) (efs) WS)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.60 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 2.36 72 0.09 0.0 185.6 0.1 0.1 0.0 0.1
6.00 5.21 338 0.26 0.0 313.1 0.7 0.2 0.0 0.2
8.00 9.03 934 0.51 0.0 441.3 1.9 0.3 0.0 0.3
10.00 13.64 1977 0.84 0.0 568.2 4.2 0.4 0.0 0.4
12.00 18.84 3561 1.26 0.0 692.9 7.5 0.5 0.0 0.5
14.00 24.40 5758 1.74 0.0 814.7 12.3 0.6 0.0 0.6
16.00 30.08 8611 2.28 0.0 933.1 17.1 0.7 0.0 0.7
18.00 35.63 12135 2.87 0.0 1047.5 20.7 0.8 0.0 0.8
20.00 40.80 16314 3.50 0.0 1157.4 23.9 0.9 0.0 0.9
22.00 45.36 21103 4.17 3.7 1262.4 26.9 1.0 0.0 4.6
24.00 49.11 25989 4.80 37.6 1354.2 29.5 1.0 0.0 30.5
26.00 51.89 28220 5.07 58.6 1392.3 30.5 1.1 0.9 32.5
28.00 53.58 30552 5.35 82.9 1430.1 31.6 1.1 9.3 42.0
30.00 54.09 31943 5.51 98.3 1451.7 32.1 1.1 16.6 49.8
32.00 53.41 32456 5.57 104.2 1459.5 32.3 1.1 19.5 53.0
34.00 51.57 32506 5.58 104.8 1460.3 32.4 1.1 19.8 53.3
36.00 48.65 32297 5.55 102.4 1457.1 32.3 1.1 18.6 52.0
38.00 44.89 31896 5.51 97.8 1451.0 32.1 1.1 16.3 49.5
40.00 41.15 31340 5.44 91.5 1442.4 31.9 1.1 13.3 46.3
42.00 37.72 30726 5.37 84.8 1432.8 31.6 1.1 10.2 42.9
44.00 34.57 30105 5.30 78.0 1423.0 31.4 1.1 7.3 39.8
46.00 31.69 29483 5.22 71.5 1413.0 31.1 1.1 4.8 36.9
48.00 29.05 28854 5.15 65.0 1402.8 30.8 1.1 2.6 34.5
50.00 26.63 28206 5.07 58.4 1392.1 30.5 1.1 0.8 32.4
52.00 24.41 27511 4.99 51.6 1380.4 30.2 1.1 0.0 31.3
54.00 22.37 26689 4.88 43.9 1366.4 29.8 1.0 0.0 30.9
56.00 20.51 25670 4.76 34.8 1348.6 29.3 1.0 0.0 30.4
58.00 18.80 24488 4.61 25.1 1327.3 28.7 1.0 0.0 26.1
60.00 17.23 23610 4.50 18.5 1311.0 28.3 1.0 0.0 19.5
62.00 15.79 23337 4.46 16.6 1305.9 28.1 1.0 0.0 17.6
64.00 14.48 23123 4.43 15.1 1301.9 28.0 1.0 0.0 16.1
66.00 13.27 22927 4.41 13.8 1298.1 27.9 1.0 0.0 14.8
68.00 12.16 22743 4.39 12.6 1294.6 27.8 1.0 0.0 13.6
70.00 11.15 22570 4.36 11.5 1291.3 27.7 1.0 0.0 12.5
72.00 10.22 22406 4.34 10.5 1288.1 27.6 1.0 0.0 11.5
74.00 9.37 22252 4.32 9.6 1285.1 27.6 1.0 0.0 10.6
76.00 8.59 22106 4.30 8.8 1282.3 27.5 1.0 0.0 9.7
78.00 7.87 21968 4.28 8.0 1279.6 27.4 1.0 0.0 9.0
80.00 7.21 21837 4.27 7.3 1277.0 27.3 1.0 0.0 8.2
82.00 6.61 21714 4.25 6.6 1274.6 27.3 1.0 0.0 7.6
84.00 6.06 21597 4.23 6.0 1272.2 27.2 1.0 0.0 7.0
86.00 5.56 21487 4.22 5.5 1270.0 27.1 1.0 0.0 6.4
88.00 5.09 21382 4.21 4.9 1268.0 27.1 1.0 0.0 5.9
90.00 4.67 21283 4.19 4.5 1266.0 27.0 1.0 0.0 5.5
92.00 4.28 21189 4.18 4.1 1264.1 27.0 1.0 0.0 5.0
94.00 3.92 21100 4.17 3.7 1262.3 26.9 1.0 0.0 4.6
96.00 3.59 21015 4.16 3.3 1260.6 26.9 1.0 0.0 4.3
98.00 3.29 20934 4.15 3.0 1258.9 26.8 1.0 0.0 3.9
100.00 3.02 20858 4.14 2.7 1257.4 26.8 1.0 0.0 3.6
102.00 2.77 20785 4.13 2.4 1255.9 26.7 1.0 0.0 3.3
104.00 2.54 20716 4.12 2.1 1254.5 26.7 1.0 0.0 3.1
106.00 2.33 20650 4.11 1.9 1253.2 26.7 1.0 0.0 2.9
108.00 2.13 20587 4.10 1.7 1251.9 26.6 1.0 0.0 2.6
110.00 1.95 20527 4.09 1.5 1250.6 26.6 1.0 0.0 2.4
112.00 1.79 20469 4.08 1.3 1249.4 26.6 1.0 0.0 2.3
114.00 1.64 20414 4.08 1.1 1248.3 26.5 1.0 0.0 2.1
116.00 1.50 20361 4.07 1.0 1247.2 26.5 1.0 0.0 1.9
118.00 1.38 20310 4.06 0.8 1246.2 26.5 1.0 0.0 1.8
120.00 1.26 20261 4.06 0.7 1245.1 26.4 1.0 0.0 1.7
s:33i2+BI ??w?s 1.16 20214 4.05 046iMea iawdi244tZ 26.4 1.0 0.0 Pa&.% of 13
Pre
The serve ii
124.00 1.06 20168 4.04 0.5 1243.2 26.4 1.0 0.0 1.4
126.00 0.97 20123 4.04 0.4 1242.3 26.4 1.0 0.0 1.3
128.00 0.89 20079 4.03 0.3 1241.4 26.3 1.0 0.0 1.2
130.00 0.82 20036 4.03 0.2 1240.5 26.3 1.0 0.0 1.2
132.00 0.75 19994 4.02 0.2 1239.6 26.3 1.0 0.0 1.1
134.00 0.69 19952 4.01 0.1 1238.7 26.3 1.0 0.0 1.0
136.00 0.63 19909 4.01 0.0 1237.8 26.2 0.9 0.0 1.0
138.00 0.58 19866 4.00 0.0 1236.9 26.2 0.9 0.0 1.0
140.00 0.53 19820 4.00 0.0 1236.0 26.2 0.9 0.0 .0.9
142.00 0.49 19770 3.99 6.0 1234.9 26.2 0.9 0.0 0.9
144.00 0.44 19715 3.98 0.0 1233.7 26.1 0.9 0.0 0.9
146.00 0.41 19654 3.97 0.0 1232.5 26.1 0.9 0.0 0.9
148.00 0.37 19590 3.97 0.0 1231.1 26.0 0.9 0.0 0.9
150.00 0.34 19522 3.96 0.0 1229.6 26.0 0.9 0.0 0.9
152.00 0.31 19449 3.95 0.0 1228.1 26.0 0.9 0.0 0.9
154.00 0.29 19374 3.94 0.0 1226.5 25.9 0.9 0.0 0.9
156.60 0.26 19296 3.92 0.0 1224.8 25.9 0.9 0.0 0.9
158.00 0.24 19215 3.91 0.0 1223.1 25.8 0.9 0.0 0.9
160.00 0.22 19131 3.90 0.0 1221.3 25.8 0.9 0.0 0.9
Peak Inflow, (Q100) =
63 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoft)
Vol= 187,996 cf (vol. of runoff
Time to Peak, (TO 35.72 minutes
(SCS TR 55)
>ft! QLQA t Q
(min) L2
0.00 0.000 0.00 0.00
0.07 0.008 2.00 0.49
0.13 0.031 4.00 1.93
0.20 0.068 6.00 4.29
0.27 0.119 8.00 7.49
0.33 0.181 10.00 11.44
0.40 0.254 12.00 16.00
0.47 0.334 14.00 21.05
0.54 0.419 16.00 26.42
0.60 0.506 18.00 31.95
0.67 0.594 20.00 37.46
0.74 0.678 22.00 42.79
0.80 0.757 24.00 47.78
0.87 0.828 26.00 52.27
0.94 0.889 28.00 56.11
1.00 0.938 30.00 59.20
1.07 0.973 32.00 61.44
1.14 0.994 34.00 62.75
1.21 1.000 36.00 63.10
1.27 0.990 38.00 62.48
1.34 0.965 40.00 60.90
1.41 0.926 42.00 58.41
1.47 0.873 44.00 55.10
1.54 0.814 46.00 51.34
1.61 0.756 48.00 47.74
1.67 0.703 50.00 44.39
1.74 0.654 52.00 41.27
1.81 0.608 54.00 38.37
1.88 0.565 56.00 35.68
1.94 0.526 58.00 33.17
2.01 0.489 60.00 30.85
sA131110002kaks%Wcj3 prirtect 10181001:49 PM
Page 10 of 13
2.08 0.454 62.00 28.68
2.14 0.423 64.00 26.67
2.21 0.393 66.00 24.79
2.28 0.365 68.00 23.05
2.34 0.340 70.00 21.44
2.41 0.316 72.00 19.93
2.48 0.294 74.00 18.53
2.55 0.273 76.00 17.23
2.61 0.254 78.00 16.02
2.68 0.236 80.00 14.90
2.75 0.219 82.00 13.85
2.81 0.204 84.00 12.88
2.88 0.190 86.00 11.97
2.95 0.176 88.00 11.13
3.01 0.164 90.00 10.35
3.08 0.153 92.00 9.62
3.15 0.142 94.00 8.95
3.21 0.132 96.00 8.32
3.28 0.123 98.00 7.74
3.35 0.114 100.00 7.19
3.42 0.106 102.00 6.69
3.48 0.099 104.00 6.22
3.55 0.092 106.00 5.78
3.62 0.085 108.00 5.38
3.68 0.079 110.00 5.00
3.75 0.074 112.00 4.65
3.82 0.068 114.00 4.32
3.88 0.064 116.00 4.02
3.95 0.059 118.00 3.74
4.02 0.055 120.00 3.47
4.09 0.051 122.00 3.23
4.15 0.048 124.00 3.00
4.22 0.044 126.00 2.79
4.29 0.041 128.00 2.60
4.35 0.038 130.00 2.41
4.42 0.036 132.00 2.24
4.49 0.033 134.00 2.09
4.55 0.031 136.00 1.94
4.62 0.029 138.00 1.80
4.69 0.027 140.00 1.68
4.76 0.025 142.00 1.56
4.82 0.023 144.00 1.45
4.89 0.021 146.00 1.35
4.96 0.020 148.00 1.25
5.02 0.018 150.00 1.17
5.09 0.017 152.00 1.08
5.16 0.016 154.00 1.01
5.22 0.015 156.00 0.94
5.29 0.014 158.00 0.87
5.36 0.013 160.00 0.81
5.42 0.012 162.00 0.75
5.49 0.011 164.00 0.70
5.56 0.010 166.00 0.65
5.63 0.010 168.00 0.61
s:X1311WWZwalcs%V*o Rhted IQFW01:49 PM Page 11 of 13
Pre
:The serve Jordan /i
•o
!Storm i
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) (cf) (ft) (cfs) cfs (cfs) (cfs) (cfs) (cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.49 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.93 58 0.08 0.0 173.4 0.1 0.1 0.0 0.1
6.00 4.29 274 0.22 0.0 292.0 0.6 0.2 0.0 0.2
8.00 7.49 763 0.44 0.0 412.1 1.6 0.3 0.0 0.3
10.00 11.44 1624 0.74 0.0 531.8 3.4 0.4 0.0 0.4
12.00 16.00 2948 1.11 0.0 650.1 6.2 0.5 0.0 0.5
14.00 21.05 4808 1.54 0.0 766.7 10.2 0.6 0.0 0.6
16.00 26.42 7264 2.03 0.0 881.1 15.4 0.7 0.0 0.7
18.00 31.95 10353 2.58 0.0 992.9 19.0 0.8 0.0 0.8
20.00 37.46 14095 3.18 0.0 1101.8 22.3 0.8 0.0 0.8
22.00 42.79 18489 3.81 0.0 1207.3 25.4 0.9 0.0 0.9
24.00 47.78 23513 4.48 17.8 1309.2 28.2 1.0 0.0 18.8
26.00 52.27 26989 4.92 46.7 1371.5 30.0 1.1 0.0 31.0
28.00 56.11 29540 5.23 72.1 1413.9 31.1 1.1 5.0 37.2
30.00 59.20 31813 5.50 96.9 1449.7 32.1 1.1 15.8 49.0
32.00 61.44 33033 5.64 110.9 1468.2 32.6 1.1 23.0 56.7
34.00 62.75 33597 5.70 117.5 1476.6 32.8 1.1 26.6 60.6
36.00 63.10 33861 5.73 120.6 1480.5 32.9 1.1 28.3 62.4
38.00 62.48 33946 5.74 121.6 1481.8 32.9 1.1 28.9 63.0
40.00 60.90 33885 5.74 120.9 1480.9 32.9 1.1 28.5 62.6
42.00 58.41 33686 5.71 118.6 1477.9 32.8 1.1 27.2 61.2
44.00 55.10 33355 5.68 114.6 1473.0 32.7 1.1 25.1 58.9
46.00 51.34 32900 5.62 109.3 1466.2 32.5 1.1 22.2 55.9
48.00 47.74 32358 5.56 103.1 1458.0 32.3 1.1 18.9 52.4
50.00 44.39 31802 5.50 96.7 1449.5 32.1 1.1 15.8 49.0
52.00 41.27 31252 5.43 90.6 1441.0 31.8 1.1 12.8 45.8
54.00 38.37 30712 5.37 84.6 1432.6 31.6 1.1 10.1 42.8
56.00 35.68 30178 5.31 78.8 1424.1 31.4 1.1 7.6 40.1
58.00 33.17 29646 5.24 73.2 1415.6 31.2 1.1 5.4 37.6
60.00 30.85 29111 5.18 67.6 1407.0 30.9 1.1 3.4 35.4
62.00 28.68 28563 5.11 62.0 1398.0 30.7 1.1 1.7 33.5
64.00 26.67 27989 5.04 56.3 1388.4 30.4 1.1 0.4 31.9
66.00 24.79 27362 4.97 50.2 1377.9 30.1 1.1 0.0 31.2
68.00 23.05 26595 4.87 43.1 1364.7 29.8 1.0 0.0 30.8
70.00 21.44 25663 4.76 34.8 1348.4 29.3 1.0 0.0 30.4
72.00 19.93 24593 4.62 25.9 1329.2 28.8 1.0 0.0 26.9
74.00 18.53 23751 4.52 19.5 1313.7 28.4 1.0 0.0 20.5
76.00 17.23 23512 4.48 17.8 1309.2 28.2 1.0 0.0 18.8
78.09 16.02 23323 4.46 16.5 1305.7 28.1 1.0 0.0 17.5
80.00 14.90 23148 4.44 15.3 1302.3 28.0 1.0 0.0 16.3
82.00 13.85 22982 4.42 14.2 1299.2 28.0 1.0 0.0 15.2
84.00 12.88 22825 4.40 13.1 1296.2 27.9 1.0 0.0 14.1
86.00 11.97 22674 4.38 12.2 1293.3 27.8 1.0 0.0 13.2
88.00 11.13 22531 4.36 11.3 1290.5 27.7 1.0 0.0 12.3
90.00 10.35 22395 4.34 10.4 1287.9 27.6 1.0 0.0 11.4
92.00 9.62 22265 4.32 9.7 1285.4 27.6 1.0 0.0 10.7
94.00 8.95 22141 4.31 9.0 1282.9 27.5 1.0 0.0 9.9
96.00 8.32 22022 4.29 8.3 1280.6 27.4 1.0 0.0 9.3
98.00 7.74 21909 4.28 7.7 1278.4 27.4 1.0 0.0 8.6
100.00 7.19 21802 4.26 7.1 1276.3 27.3 1.0 0.0 8.0
102.00 6.69 21699 4.25 6.5 1274.3 27.3 1.0 0.0 7.5
104.00 6.22 21601 4.24 6.0 1272.3 27.2 1.0 0.0 7.0
106.00 5.78 21507 4.22 5.6 1270.5 27.2 1.0 0.0 6.5
108.00 5.38 21418 4.21 5.1 1268.7 27.1 1.0 0.0 6.1
110.00 5.00 21332 4.20 4.7 1267.0 27.1 1.0 0.0 5.7
112.00 4.65 21250 4.19 4.3 1265.3 27.0 1.0 0.0 5.3
114.00 4.32 21172 4.18 4.0 1263.7 27.0 1.0 0.0 4.9
116.00 4.02 21097 4.17 3.6 1262.2 26.9 1.0 0.0 4.6
118.00 3.74 21025 4.16 3.3 1260.8 26.9 1.0 0.0 4.3
120.00 3.47 20957 4.15 3.1 1259.4 26.8 1.0 0.0 4.0
.-i2a%QOr=k. mg33.23 20891 4.14 2 nw& iasvdi2A&d 26.8 1.0 0.0 Pagd:M of 13
124.00 3.00 20828 4.13 2.5 1256.8 26.8 1.0 0.0 3.5
126.00 2.79 20767 4.12 2.3 1255.5 26.7 1.0 0.0 3.3
128.00 2.60 20709 4.12 2.1 1254.4 26.7 1.0 0.0 3.1
130.00 2.41 20653 4.11 1.9 1253.2 26.7 1.0 0.0 2.9
132.00 2.24 20599 4.10 1.7 1252.1 26.6 1.0 0.0 2.7
134.00 2.09 20548 4.09 1.5 1251.1 26.6 1.0 0.0 2.5
136.00 1.94 20498 4.09 1.4 1250.0 26.6 1.0 0.0 2.3
138.00 1.80 20450 4.08 1.2' 1249.0 26.6 1.0 0.0 2.2
140.00 1.68 20403 4.08 1.1 1248.1 26.5 1.0 0.0 2.1
142.00 1.56 20358 4.07 1.0 1247.2 26.5 1.0 0.0 1.9
144.00 1.45 20315 4.06 0.8 1246.3 26.5 1.0 0.0 1.8
146.00 1.35 20273 4.06 0.7 1245.4 26.5 1.0 0.0 1.7
148.00 1.25 20232 4.05 0.6 1244.5 26.4 1.0 0.0 1.6
150.00 1.17 20192 4.05 0.5 1243.7 26.4 1.0 0.0 1.5
152.00 1.08 20153 4.04 0.4 1242.9 26.4 1.0 0.0 1.4
154.00 1.01 20115 4.04 0.4 1242.1 26.4 1.0 0.0 1.3
156.00 0.94 20077 4.03 0.3 1241.3 26.3 1.0 0.0 1.2
158.00 0.87 20040 4.03 0.2 1240.6 26.3 1.0 0.0 1.2
160.00 0.81 20003 4.02 0.2 1239.8 26.3 1.0 0.0 1.1
162.00 0.75 19966 4.02 0.1 1239.0 26.3 0.0 0.1
164.00 0.70 20044 4.03 0.2 1240.6 26.3 0.0 0.2
166.00 0.65 20100 4.03. 0.3 1241.8 26.4 0.0 0.3
168.00 0.61 20137 4.04 0.4 1242.6 26.4 0.0 0.4
s:A1311W0G2WalcMWcj3 Printed: 1018M 1:49 PM Page 13 of 13
ANTI-FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #3

FLOTATION OF RISER

RISER DIMENSIONS
0 feet
4
Inside Dimensions Width = i .
0 feet
4
Length = .

00
332
ELEV. @ TOP OF RISER = .
00
328
ELEV. Q BOT. OF RISER = .
00 ft
4
H = .
0 SF
16
AREA OF RISER = .
VOLUME OF RISER = 64.0 Cubic Feet

DIAMETER OF BARREL = 24 Inch
1 SF
3
AREA OF BARREL = I .
00 ft
6
EXPOSED LENGTH = .
VOLUME OF BARREL = 18.8 Cubic Feet

WEIGHT OF WATER DISPLACED = j 5169.81 lb
79 lb
86
FACTOR OF SAFETY (10%) .
56

VOLUME OF CONCRETE ANCHOR = 64.9 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
4'x4'
Inside Dimension 5175 lb,
Weight of Concrete

ANIT-FLOTATION WEIGHT REQUIRED = 512 lb,
t
F
bi
ANIT-FLOTATION VOLUME REQUIRED = ee
c
5.8 Cu

ANTI-FLOTATION PAD REQUIRED
DEPTH = 1.00 ft
WIDTH = 6.00 ft
LENGTH= 6.00 ft

0 Cubic Feet
36
VOLUME PROVIDED = .

SO, USE CONCRETE PAD 1'x6'x6'

I
FES AT PERMANENT WATER QUALITY POND 93
flow Q in cfs : 32 Flow depth (ft) = 2.00
slope S in ft/ft :.025 Outlet velocity (fps) = 12.884
pipe diameter D in ft : 2
Manning number n :.012
Zone 3
For a pipe diameter of 2.00 feet and
an outlet velocity of 12.88 feet per second:
The recommended apron length is 16.00 feet.
The maximum stone diameter is 23.6
inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 13 B 22
WQ#3 Emergency Spillway
Channel Calculator - Bare Earth
Given Input Data:
Shape ......
Solving for
Flowrate ...
Slope ......
Manning's n
Height .....
Bottom width
Left slope .
Right slope
Computed Results:
Depth ..........
Velocity .......
Flow area ......
Flow perimeter .
Hydraulic radius
Top width ......
Area ...........
Perimeter ......
Percent full ...
Critical Informati
Critical depth ..................
Critical slope ..................
Critical velocity ...............
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ..
Flow condition ..................
Trapezoidal
Depth of Flow
19.8000 cfs
0.2000 ft/ft
0.0200
12.0000 in
180.0000 in
0.3300 ft/ft
0.3300 ft/ft
1.7408 in
9.0705 fps
2.1829 ft2
183.6662 in
1.7115 in
181.1489 in
15.3300 ft2
205.2730 in
14.5064 0
on
4.5275 in
0.0085 ft/ft
3.4698 fps
5.7063 ft2
189.5352 in
4.3354 in
182.9881 in
1.4236 ft
0.5659 ft
4.2052
Supercritical
Page 1
TEMPORARY LINED DESIGN
FOR CHANNELS
ELE 8.05g
ermissible Shear Stresses
for Riprap and Temporary
Liners
'EROSION AND SEDIMENTAION CONTROL
PLANNING. AND DESIGN MANUAL -
NORTH CAROLINA
= yds.
T = Snear Stress in Ib/ t2
y = Unit Weicht cl Water, 62.4- Ib/=t
d = r=icw depth in ft.
s = Cncnnel Grcdient in
-kALt ! Ur--
PRQJECT n
PRI]JECT NAME:-
.3 A -I E:
3 Y ` -- -
Permissible Unit Shear Stress, To
Lining Category Lining Type (lb/ft-)
Temporary Woven Pacer Net O.' s
Jute Net 0.15
Fiberglass roving:
Single O.o"C
Dcuble 0.?5
Straw with Net 1.-5
Curled Wccd mat
Synthetic Mat 2.00
so Stone Size (ines)
Gravel Riprap 1 0-1c
2 0.80
Rcck Ricrac o 2.50•
4 ?.ac
12 ?.OC
1 is 6.30
18 7.-5 0
21 8.80
24 10.00
Cam,-,IINNE1 wQ*3 E? G,^wcy SAL
d = LINING TYPE REQUIRED: cu'-'s Sloxi?
s = ZO FROM:
T 70:
C NIN EL
d =
S =
T =
C ? ?,?-`, I?1 ICJ E L
s =
T =
C IN I11
d =
s =
T =
CHANNEL
T =
LINK'\iG 7 ',-PE REQUIRED:
FROM:
70:
LINING TYPE REQUIRED:
F=r'
M:
TO:
LINING TYPE REQUIRED:
FROM:
T0:
LINING TAPE REQUIRED:
FROM:
70:
-G.
IMPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #t4
M Lots s.f./Lot Total
9 6,500 58,500
Roadways 8,715 s.f.
Lots (houses, drives, etc.) 58,500 s.f.
Sidewalks - s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 67,215 s.f.
Total Area = 6.08 ac.
Impervious Area = 1.54 ac.
Impervious Percentage = 25.4%
The storage volume for the 1" storm (Schueler Method) would be:
Rv = .05+.009 (1)
RV= 0.279
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.14115733 ac.ft.
6,149 cf
6,149 c.f. storage required.
7,379 c.t required including an additional 20% for sediment storage
8,622 c.f. storage provided.
Storage Provided
Incremental Total
=lev. Area (s f) Volume (c.f.) Volume (c.f.) Depth (ft.)
274 520
1,844 1,844
276 1,324
3,880 5,724
278 2,556
2,898 8,622
279 3,240
Orifice required for 2-5 Day Drawdown
Drawdown calct 5.0 feet of storage so, say 2.5 feet of average head
Using a 1" orifice Q2-day= 7,114
Q = 0.04 cis Q5-day= 17,786
So, a 1" Orifice will drawdown pond in 2.42 days
2
4
5
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The Preserve at Jordan '1 1
now
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
Post-Development off I
Drainage Area, (DA) = 6.08 acres
Overland Flow
Elevation of most remote point, (111) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (HI) = 330.0 feet
Elevation of point of design, (H2) = 274.0 feet
Length of travel, (L) = 619.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 2.8 minutes
Pipe Flow
Elevation of most remote point, (HI) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (To) 5.0 minutes
Intensity, (1) = 7.22 inches/hr
Area 1 (Impervious) = 1.54 acres
Area 2 (Pervious) = 4.54 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) 0.39
Peak Release Rate, (Q10) _> 17 cfs

Post-Development Runoff
Drainage Area, (DA) = 6.08 acres
Time,ef Concentration, (TO _> 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) _> 0.39
Peak Release Rate, (Qu) 20 c£s

Post- Development Runoff 100-yr
Drainage Area, (DA) _
Time of Concentration, (Tc)
Intensity, (1) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Q100) _>
6.08 acres
5.0 minutes
9.67 inches
0.39
23 cfs
sal 311\00021ea1es%wa* printed 1 ef /002-01 PM Pagel of 13

Stage - S torage Func tion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (SO (of) (It) (ft) in (S) In (Z) Z est
274 520 -
276 1,324 1,844 1,844 2.00 7.52 0.69 2.02
278.0 2,556 3,880 5,724 4.00 8.65 1.39 3.89
280.0 4,161 6,717 12,441 6.00 9.43 1.79 6.10
Check
Stage Storage
2 1,812
4 5,998
6 12,079
Regression Output:
b° 1.73 (X Variable Coeff)
K 548 (e'e'-P')
Stage - Storage Equation is of the form: S = (KsXZ)°
Bottom Dry Pond Elevation
274.0 feet
Water Surface Elev. (Q10) _ _ , ..' feet
Water Surface Elev. (Q25) = 279.80 feet
Water Surface Elev. (Q100) = 330.22 feet
,Pfimary Spillway
Barrel
Dia. of Barrel = 18 inches
Area of Barrel, (Ab) = 1.77 sf
Pipe Length, (L) = 50.0 feet
Friction Coeff., (Kp) = 0.01550
Inv. of Barrel = 274.00 feet
Riser
Elev. of Riser Crest = 279.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 1 0.0055
s:%1311100021caks\Wg4 printed 10MM 2:01 PM
Page 2 of 13
Rectangular:
Length of Riser = 2 feet
Width of Riser = 2 feet
Weir Length = 8 feet
Area of Riser = 4 sq.ft.
Width of Spillway (Approx) = 5 feet
Weir Coefficient = 3.0
Crest Elevation = 280 feet
s:%l311%00(rAeabs\wg4 prirked Inow Z.01 PM Page 3 of 13
The Preserve at Jordan Lake - Pond 11 •-
'Inflow og 10-yr
Peak Inflow, (Qla) => 17 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff
Vol= 41,550 cf (vol. of runoff
Time to Peak, (Tp) 29.09 minutes
(SCS TR-55)
-QLQ2 t s
(ndn)
0.00 0.000 0 0.00
0.03 0.003 1 0.05
0.07 0.012 2 0.20
0.10 0.026 3 0.45
0.14 0.046 4 0.79
0.17 0.071 5 1.22
0.21 0.101 6 1.73
0.24 0.136 7 2.33
0.27 0.175 8 3.00
0.31 0.218 9 3.73
0.34 0.264 10 4.52
0.38 0.313 11 5.36
0.41 0.364 12 6.24
0.45 0.417 13 7.14
0.48 0.470 14 8.06
0.52 0.524 15 8.98
0.55 0.578 16 9.90
0.58 0.631 17 10.80
0.62 0.682 18 11.68
0.65 0.731 19 12.52
0.69 0.778 20 13.32
0.72 0.821 21 14.06
0.76 0.860 22 14.73
0.79 0.896 23 15.34
0.82 0.926 24 15.86
0.86 0.952 25 16.30
0.89 0.972 26 16.65
0.93 0.987 27 16.91
0.96 0.997 28 17.06
1.00 1.000 29 17.12
1.03 0.998 30 17.08
1.07 0.989 31 16.94
1.10 0.976 32 16.71
1.13 0.956 33 16.37
1.17 0.931 34 15.95
1.20 0.902 35 15.44
1.24 0.867 36 14.85
1.27 0.831 37 14.23
1.31 0.794 38 13.60
1.34 0.760 39 13.01
1.37 0.727 40 12.44
1.41 0.695 41 11.90
1.44 0.664 42 11.38
1.48 0.635 43 10.88
1.51 0.608 44 10.41
1.55 0.581 45 9.95
1.58 0.556 46 9.52
1.62 0.531 47 9.10
1.65 0.508 48 8.70
1.68 0.486 49 8.32
1.72 0.465 50 7.96
1.75 0.444 51 7.61
9:11311W002%ca1cs1Wg4 printed 10/8/002:01 PM
Page 4 of 13
Preserve The 'o ED D i
1.79 0.425 52 7.28
1.82 0.406 53 6.96
1.86 0.389 54 6.66
1.89 0.372 55 6.36
1.92 0.355 56 6.09
1.96 0.340 57 5.82
1.99 0.325 58 5.57
2.03 0.311 59 5.32
2.06 0.297 60 5.09
2.10 0.284 61 4.87
2.13 0.272 62 4.66
2.17 0.260 63 4.45
2.20 0.249 64 4.26
2.23 0.238 65 4.07
2.27 0.227 66 3.89
2.30. 0.217 67 3.72
2.34 0.208 68 3.56
2.37 0.199 69 3.41
2.41 0.190 70 3.26
2.44 0.182 71 3.11
2.47 0.174 72 2.98
2.51 0.166 73 2.85
2.54 0.159 74 2.72
2.58 0.152 75 2.60
2.61 0.145 76 2.49
2.65 0.139 77 2.38
2.68 0.133 78 2.28
2.72 0.127 79 2.18
2.75 0.122 80 2.08
2.78 0.116 81 1.99
2.82 0.111 82 1.90
2.85 0.106 83 1.82
2.89 0.102 84 1.74
2.92 0.097 85 1.67
2.96 0.093 86 1.59
2.99 0.089 87 1.52
3.02 0.085 88 1.46
s:%1311%0002%caks%Wg4 printed 10/6=2:01 Pen Page 5 of 13
The Pre serve at Jordan L ake - 'i 11

;Storm •o
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) Lca- (ft) LEM (cfs) (C&) (Cfs) (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.05 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.20 3 0.05 0.0 34.2 0.0 0.0 0.0 0.0
3.00 0.45 12 0.11 0.0 51.3 0.1 0.1 0.0 0.1
4.00 0.79 35 0.20 0.0 69.5 0.4 0.1 0.0 0.1
5.00 1.22 76 032 0.0 87.3 0.7 0.1 0.0 0.1
6.00 1.73 142 0.46 0.0 104.6 1.2 0.1 0.0 0.1
7.00 2.33 238 0.62 0.0 121.4 1.9 0.2 0.0 0.2
8.00 3.00 368 0.79 0.0 137.7 2.8 0.2 0.0 0.2
9.00 3.73 536 0.99 0.0 153.6 3.9 0.2 0.0 0.2
10.00 4.52 748 1.20 0.0 169.2 5.3 0.2 0.0 0.2
11.00 5.36 1006 1.42 0.0 184.3 6.8 0.3 0.0 0.3
12.00 6.24 1312 1.66 0.0 199.1 8.1 0.3 0.0 0.3
13.00 7.14 1670 1.91 0.0 213.5 9.2 0.3 0.0 0.3
14.00 8.06 2081 2.17 0.0 227.5 10.1 0.3 0.0 0.3
15.00 8.98 2546 2.43 0.0 241.2 11.0 0.3 0.0 0.3
16.00 9.90 3065 2.71 0.0 254.5 11.9 0.3 0.0 0.3
17.00 10.80 3638 2.99 0.0 267.4 12.7 0.4 0.0 0.4
18.00 11.68 4264 3.28 0.0 280.0 13.5 0.4 0.0 0.4
19.00 12.52 4942 3.58 0.0 292.3 14.3 0.4 0.0 0.4
20.00 13.32 5670 3.87 0.0 304.1 15.0 0.4 0.0 0.4
21.00 14.06 6444 4.17 0.0 315.6 15.7 0.4 0.0 0.4
22.00 14.73 7261 4.47 0.0 326.7 16.4 0.4 0.0 0.4
23.00 15.34 8119 4.77 0.0 337.4 17.1 0.5 0.0 0.5
24.00 15.86 9011 5.06 0.4 347.8 17.7 0.5 0.0 0.9
25.00 16.30 9909 5.35 5.5 357.5 18.2 0.5 0.0 5.9
26.00 16.65 10530 5.54 10.5 363.8 18.6 0.5 0.0 11.0
27.00 16.91 10868 5.64 13.6 367.2 18.8 0.5 0.0 14.1
28.00 17.06 11034 5.69 15.3 368.8 18.9 0.5 0.0 15.8
29.00 17.12 11113 5.72 16.0 369.6 19.0 0.5 0.0 16.5
30.00 17.08 11148 5.73 16.4 369.9 19.0 0.5 0.0 16.9
31.00 16.94 11160 5.73 16.5 370.0 19.0 0.5 0.0 17.0
32.00 16.71 11156 5.73 16.5 370.0 19.0 0.5 0.0 17.0
33.00 16.37 11140 5.73 16.3 369.8 19.0 0.5 0.0 16.8
34.00 15.95 11114 5.72 16.0 369.6 19.0 0.5 0.0 16.5
35.00 15.44 11078 5.71 15.7 369.2 18.9 0.5 0.0 16.2
36.00 14.85 11033 5.69 15.2 368.8 18.9 0.5 0.0 15.7
37.00 14.23 10980 5.68 14.7 368.3 18.9 0.5 0.0 15.2
38.00 13.60 10920 5.66 14.1 367.7 18.9 0.5 0.0 14.6
39.09 13.01 10858 5.64 13.5 367.1 18.8 0.5 0.0 14.0
40.00 12.44 10796 5.62 13.0 366.5 18.8 0.5 0.0 13.5
41.00 11.90 10735 5.60 12.4 365.9 18.7 0.5 0.0 12.9
42.00 11.38 10676 5.59 11.8 365.3 18.7 0.5 0.0 12.3
43.00 10.88 10619 5.57 11.3 364.7 18.7 0.5 0.0 11.8
44.00 10.41 10563 5.55 10.8 364.2 18.6 0.5 0.0 11.3
45.00 9.95 10509 5.53 10.3 363.6 18.6 0.5 0.0 10.8
46.00 9.52 10456 5.52 9.9 363.1 18.6 0.5 0.0 10.4
47.00 9.10 10405 5.50 9.4 362.6 18.6 0.5 0.0 9.9
48.00 8.70 10356 5.49 9.0 362.1 18.5 0.5 0.0 9.5
49.00 8.32 10308 5.47 8.6 361.6 18.5 0.5 0.0 9.1
50.00 7.96 10262 5.46 8.2 361.1 18.5 0.5 0.0 8.7
51.00 7.61 10217 5.45 7.8 360.7 18.4 0.5 0.0 8.3
52.00 7.28 10173 5.43 7.5 360.2 18.4 0.5 0.0 8.0
53.00 6.96 10131 5.42 7.2 359.8 18.4 0.5 0.0 7.6
54.00 6.66 10090 5.41 6.8 359.4 18.4 0.5 0.0 7.3
55.00 6.36 10050 5.39 6.5 359.0 18.3 0.5 0.0 7.0
56.00 6.09 10011 5.38 6.2 358.6 18.3 0.5 0.0 6.7
57.00 5.82 9974 5.37 5.9 358.2 18.3 0.5 0.0 6.4
58.00 5.57 9937 5.36 5.7 357.8 18.3 0.5 0.0 6.2
59.00 5.32 9902 5.35 5.4 357.4 18.2 0.5 0.0 5.9
60.00 5.09 9867 5.34 5.2 357.1 18.2 0.5 0.0 5.6
saCsllQ&2%.wks%wae 4.87 9834 5.33 4kd l w=3:5&i 18.2 0.5 0.0 Ante 6 of 13
The Pres erve at Jordan La ke - Po r r
62.00 4.66 9802 5.32 4.7 356.4 18.2 0.5 0.0 5.2
63.00 4.45 9770 5.31 4.5 356.0 18.2 0.5 0.0 5.0
64.00 426 9740 5.30 4.3 355.7 18.1 0.5 0.0 4.8
65.00 4.07 9710 5.29 4.1 355.4 18.1 0.5 0.0 4.6
66.00 3.89 9681 5.28 3.9 355.1 18.1 0.5 0.0 4.4
67.00 3.72 9654 5.27 3.7 354.8 18.1 0.5 0.0 4.2
68.00 3.56 9626 5.26 3.5 354.5 18.1 0.5 0.0 4.0
69.00 3.41 9600 5.25 3.3 354.2 18.1 0.5 0.0 3.8
70.00 3.26 9574 5.24 3.2 354.0 18.0 0.5 0.0 3.7
71.00 3.11 9549 5.24 3.0 353.7 18.0 0.5 0.0 3.5
72.00 2.98 9525 5.23 2.9 353.4 18.0 0.5 0.0 3.4
73.00 2.85 9502 5.22 2.7 353.2 18.0 0.5 0.0 3.2
74.00 2.72 9479 5.21 2.6 352.9 18.0 0.5 0.0 3.1
75.00 2.60 9457 5.21 2.5 352.7 18.0 0.5 0.0 3.0
76.00 2.49 9435 5.20 2.4 352.5 17.9 0.5 0.0 2.8
77.00 2.38 9414 5.19 2.2 352.2 17.9 0.5 0.0 2.7
78.00 2.28 9393 5.19 2.1 352.0 17.9 0.5 0.0 2.6
79.00 2.18 9373 5.18 2.0 351.8 17.9 0.5 0.0 2.5
80.00 2.08 9354 5.17 1.9 351.6 17.9 0.5 0.0 2.4
81.00 1.99 9335 5.17 1.8 351.4 17.9 0.5 0.0 2.3
82.00 1.90 9317 5.16 1.7 351.2 17.9 0.5 0.0 2.2
83.00 1.82 9299 5.16 1.6 351.0 17.9 0.5 0.0 2.1
84.00 1.74 9281 5.15 1.5 350.8 17.8 0.5 0.0 2.0
85.00 1.67 9264 5.15 1.5 350.6 17.8 0.5 0.0 1.9
86.00 1.59 9248 5.14 1.4 350.4 17.8 0.5 0.0 1.9
87.00 1.52 9232 5.13 1.3 350.2 17.8 0.5 0.0 1.8
88.00 1.46 9216 5.13 1.2 350.1 17.8 0.5 0.0 1.7

inflow og
Peak Inflow, (Q50) = 20 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 54,679 cf (vol. of runoff
Time to Peak, (Tp) => 33.37 minutes
(SCS TR-55)
Q/QP t s
(min) cfs
0.00 0.000 0.00 0.00
0.03 0.002 1.00 0.04
0.06 0.009 2.00 0.17
0.09 0.020 3.00 0.39
0.12 0.035 4.00 0.69
0.15 0.054 5.00 1.07
0.18 0.078 6.00 1.53
0.21 0.105 7.00 2.06
0.24 0.135 8.00 2.66
0.27 0.169 9.00 3.32
0.30 0.206 10.00 4.04
0.33 0.245 11.00 4.81
0.36 0.287 12.00 5.63
0.39 0.330 13.00 6.48
0.42 0.375 14.00 7.36
0.45 0.421 15.00 8.27
0.48 0.468 16.00 9.19
0.51 0.515 17.00 10.11
0.54 0.562 18.00 11.03
0.57 0.608 19.00 11.95
0.60 0.653 20.00 12.84
0.63 0.697 21.00 13.70
0.66 0.740 22.00 14.53
0.69 0.780 23.00 15.32
s:11311 WW21ea1cs1Wg4 printed 1019/00 2:28 PM
Page 7 of 13
The Preserve a t Jordan L ake - P ond It
0.72 0.818 24.00 16.06
0.75 0.853 25.00 16.75
0.78 0.884 26.00 17.37
0.81 0.913 27.00 17.93
0.84 0.937 28.00 18.42
0.87 0.958 29.00 18.82
0.90 0.975 30.00 19.15
0.93 0.988 31.00 19.40
0.96 0.996 32.00 19.56
0.99 1.000 33.00 19.64
1.02 0.999 34.00 19.63
1.05 0.994 35.00 19.53
1.08 0.985 36.00 19.35
1.11 0.971 37.00 19.08
1.14 0.953 38.00 18.73
1.17 0.931 39.00 18.30
1.20 0.906 40.00 17.80
1.23 0.877 41.00 17.22
1.26 0.845 42.00 16.60
1.29 0.813 43.00 15.97
1.32 0.782 44.00 15.36
1.35 0.752 45.00 14.77
1.38 0.723 46.00 14.21
1.41 0.696 47.00 13.67
L" 0.669 48.00 13.14
1.47 0.643 49.00 12.64
1.50 0.619 50.00 12.16
1.53 0.595 51.00 11.69
1.56 0.573 52.00 11.25
1.59 0.551 53.00 10.82
1.62 0.530 54.00 10.40
1.65 0.509 55.00 10.01
1.68 0.490 56.00 9.62
1.71 0.471 57.00 9.26
1.74 0.453 58.00 8.90
1.77 0.436 59.00 8.56
1.80 0.419 60.00 8.24
1.83 0.403 61.00 7.92
1.86 0,388 62.00 7.62
1.89 0.373 63.00 7.33
1.92 0.359 64.00 7.05
1.95 0.345 65.00 6.78
1.98 0.332 66.00 6.52
2.01 0.319 67.00 6.27
2.04 0.307 68.00 6.03
2.07 0.295 69.00 5.80
2.10 0.284 70.00 5.58
2.13 0.273 71.00 5.37
2.16 0.263 72.00 5.16
2.19 0.253 73.00 4.96
122 0.243 74.00 4.77
2.25 0.234 75.00 4.59
2.28 0.225 76.00 4.42
2.31 0.216 77.00 4.25
2.34 0.208 78.00 4.09
2.37 0.200 79.00 3.93
2.40 0.192 80.00 3.78
pWed 1OWN 2:28 PM Page 8 of 13
s:1'1311 W0021eaks1Wg4
The Pre serve at Jordan L ake - Pon d // i
Storm Ro uting Table -2-';-yr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) (cfs) Lca i.
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.17 3 0.05 0.0 32.9 0.0 0.0 0.0 0.0
3.00 0.39 2 0.04 0.0 30.4 0.0 0.0 0.0 0.0
4.00 0.69 23 0.16 0.0 61.6 0.3 0.1 0.0 0.1
5.00 1.07 59 0.28 0.0 81.1 0.6 0.1 0.0 0.1
6.00 1.53 117 0.41 0.0 98.7 1.0 0.1 0.0 0.1
7.00 2.06 200 0.56 0.0 115.5 1.7 0.2 0.0 0.2
8.00 2.66 314 0.72 0.0 131.6 2.5 0.2 0.0 0.2
9.00 3.32 463 0.91 0.0 147.2 3.5 0.2 0.0 0.2
10.00 4.04 650 1.10 0.0 162.4 4.7 0.2 0.0 0.2
11.00 4.81 879 1.32 0.0 177.2 6.1 0.2 0.0 0.2
12.00 5.63 1153 1.54 0.0 191.7 7.6 0.3 0.0 0.3
13.00 6.48 1475 1.78 0.0 205.9 8.6 0.3 0.0 0.3
14.00 7.36 1847 2.02 0.0 219.8 9.6 0.3 0.0 0.3
15.00 8.27 2271 2.28 0.0 233.3 10.5 0.3 0.0 0.3
16.00 9.19 2748 2.55 0.0 246.6 11.4 0.3 0.0 0.3
17.00 10.11 3279 2.82 0.0 259.5 12.2 0.4 0.0 0.4
18.00 11.03 3865 3.10 0.0 272.2 13.0 0.4 0.0 0.4
19.00 11.95 4505 3.39 0.0 284.5 13.8 0.4 0.0 0.4
20.00 12.84 5198 3.68 0.0 296.6 14.6 0.4 0.0 0.4
21.00 13.70 5944 3.98 0.0 308.3 15.3 0.4 0.0 0.4
22.00 14.53 6741 4.28 0.0 319.8 16.0 0.4 0.0 0.4
23.00 15.32 7587 4.58 0.0 330.9 16.7 0.5 0.0 0.5
24.00 16.06 8479 4.89 0.0 341.7 17.3 0.5 0.0 0.5
25.00 16.75 9415 5.19 2.2 352.2 17.9 0.5 0.0 2.7
26.00 17.37 10256 5.46 8.2 361.1 18.5 0.5 0.0 8.7
27.00 17.93 10779 5.62 12.8 366.3 18.8 0.5 0.0 13.3
28.00 18.42 11057 5.70 15.5 369.0 18.9 0.5 0.0 16.0
29.00 18.82 11203 5.74 16.9 370.4 19.0 0.5 0.0 17.4
30.00 19.15 11286 5.77 17.8 371.2 19.1 0.5 0.0 18.3
31.00 19.40 11338 5.78 18.3 371.7 19.1 0.5 0.0 18.8
32.00 19.56 11372 5.79 18.7 372.0 19.1 0.5 0.0 19.2
33.00 19.64 11395 5.80 18.9 372.3 19.1 0.5 0.0 19.4
34.00 19.63 11408 5.80 19.1 372.4 19.1 0.5 0.0 19.6
35.00 19.53 11412 5.81 19.1 372.4 19.1 0.5 0.0 19.6
36.00 19.35 11408 5.80 19.0 372.4 19.1 0.5 0.0 19.6
37.00 19.08 11395 5.80 18.9 372.3 19.1 0.5 0.0 19.4
38.00 18.73 11374 5.79 18.7 372.1 19.1 0.5 0.0 19.2
39.09 18.30 11346 5.79 18.4 371.8 19.1 0.5 0.0 18.9
40.00 17.80 11309 5.78 18.0 371.4 19.1 0.5 0.0 18.5
41.00 17.22 11265 5.76 17.6 371.0 19.0 0.5 0.0 18.1
42.00 16.60 11214 5.75 17.0 370.5 19.0 0.5 0.0 17.6
43.00 15.97 11157 5.73 16.5 370.0 19.0 0.5 0.0 17.0
44.00 15.36 11096 5.71 15.9 369.4 19.0 0.5 0.0 16.4
45.00 14.77 11036 5.69 15.3 368.8 18.9 0.5 0.0 15.8
46.00 14.21 10976 5.68 14.7 368.2 18.9 0.5 0.0 15.2
47.00 13.67 10918 5.66 14.1 367.7 18.9 0.5 0.0 14.6
48.00 13.14 10861 5.64 13.6 367.1 18.8 0.5 0.0 14.1
49.00 12.64 10805 5.62 13.0 366.6 18.8 0.5 0.0 13.5
50.00 12.16 10751 5.61 12.5 366.0 18.8 0.5 0.0 13.0
51.00 11.69 10699 5.59 12.0 365.5 18.7 0.5 0.0 12.5
52.00 11.25 10648 5.58 11.6 365.0 18.7 0.5 0.0 12.1
53.00 10.82 10598 5.56 11.1 364.5 18.7 0.5 0.0 11.6
54.00 10.40 10550 5.55 10.7 364.0 18.6 0.5 0.0 11.2
55.00 10.01 10502 5.53 10.3 363.6 18.6 0.5 0.0 10.8
56.00 9.62 10457 5.52 9.9 363.1 18.6 0.5 0.0 10.4
57.00 9.26 10412 5.51 9.5 362.7 18.6 0.5 0.0 10.0
58.00 8.90 10369 5.49 9.1 362.2 18.5 0.5 0.0 9.6
59.00 8.56 10326 5.48 8.8 361.8 18.5 0.5 0.0 9.2
60.00 8.24 10285 5.47 8.4 361.4 18.5 0.5 0.0 8.9
•:611Q&2%ceks+wg4 7.92 10245 5.45 84L*.a , omw3f&Q 18.5 0.5 0.0 8jfge 9 of 13
Pre
The serve 'i 11
62.00 7.62 10206 5.44 7.8 360.6 18.4 0.5 0.0 8.3
63.00 7.33 10168 5.43 7.5 360.2 18.4 0.5 0.0 7.9
64.00 7.05 10131 5.42 7.2 359.8 18.4 0.5 0.0 7.6
65.00 6.78 10095 5.41 6.9 359.4 18.4 0.5 0.0 7.4
66.00 6.52 10060 5.40 6.6 359.1 18.3 0.5 0.0 7.1
67.00 6.27 10026 5.39 6.3 358.7 18.3 0.5 0.0 6.8
68.00 6.03 9993 5.38 6.1 358.4 18.3 0.5 0.0 6.6
69.00 5.80 9960 5.37 5.8 358.0 18.3 0.5 0.0 6.3
70.00 5.58 9928 5.36 5.6 357.7 18.3 0.5 0.0 6.1
71.00 5.37 9898 5.35 5.4 357.4 18.2 0.5 0.0 5.9
72.00 5.16 9868 5.34 5.2 357.1 18.2 0.5 0.0 5.6
73.00 4.96 9838 5.33 5.0 356.8 18.2 0.5 0.0 5.4
74.00 4.77 9810 5.32 4.8 356.5 18.2 0.5 0.0 5.2
75.00 4.59 9782 5.31 4.6 356.2 18.2 0.5 0.0 5.0
76.00 4.42 9755 5.30 4.4 355.9 18.2 0.5 0.0 4.9
77.00 4.25 9729 5.29 4.2 355.6 18.1 0.5 0.0 4.7
78.00 4.09 9703 5.29 4.0 355.3 18.1 0.5 0.0 4.5
79.00 3.93 9678 5.28 3.9 355.1 18.1 0.5 0.0 4.3
80.00 3.78 9654 5.27 3.7 354.8 18.1 0.5 0.0 4.2

Inflow
Hy drograph 1
o 00-yr
Peak Inflow, (Q,,) = 23 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoff)
Vol= 76,303 cf (vol. of runoff)
Time to Peak, (Tp) 39.92 minutes
(SCS TR-55)
Q/Qp t Q
(min) efs
0.00 0.000 0.00 0.00
0.03 0.002 1.00 0.04
0.06 0.006 2.00 0.14
0.09 0.014 3.00 0.32
0.12 0.025 4.00 0.56
0.15 0.038 5.00 0.88
0.18 0.055 6.00 1.25
0.21 0.074 7.00 1.70
0.24 0.096 8.00 2.20
0.27 0.120 9.00 2.76
y 0.30 0.147 10.00 3.37
0.33 0.176 11.00 4.03
0.36 0.207 12.00 4.74
0.39 0.240 13.00 5.49
0.42 0.274 14.00 6.28
0.45 0.310 15.00 7.10
0.48 0.347 16.00 7.95
0.51 0.385 17.00 8.82
0.54 0.423 18.00 9.70
0.57 0.462 19.00 10.60
0.60 0.502 20.00 11.50
0.63 0.541 21.00 12.40
0.66 0.580 22.00 13.29
0.69 0.619 23.00 14.18
0.72 0.656 24.00 15.04
0.75 0.693 25.00 15.89
0.78 0.729 26.00 16.71
0.81 0.763 27.00 17.49
0.84 0.796 28.00 18.24
0.87 0.827 29.00 18.94
0.90 0.855 30.00 19.60
s:u311%00o2ma1es%wg4 printed 1019ro0 2:28 PM
Page 10 of 13
'The Preserve a t Jordan L ake - P ond 1!
0.93 0.882 31.00 20.21
0.96 0.906 32.00 20.77
0.99 0.928 33.00 21.26
1.02 0.947 34.00 21.70
1.05 0.963 35.00 22.07
1.08 0.976 36.00 22.38
1.11 0.987 37.00 22.62
1.14 0.994 38.00 22.79
1.17 0.999 39.00 22.89
1.20 1.000 40.00 22.92
1.23 0.998 41.00 22.88
1.26 0.993 42.00 22.77
1.29 0.985 43.00 22.58
1.32 0.974 44.00 22.33
1.35 0.961 45.00 22.02
1.38 0.944 46.00 21.63
1.41 0.924 47.00 21.19
1.44 0.902 48.00 20.68
1.47 0.878 49.00 20.11
1.50 0.852 50.00 19.52
1.53 0.824 51.00 18.90
1.56 0.798 52.00 18.29
1.59 0.772 53.00 17.70
1.62 0.748 54.00 17.14
1.65 0.724 55.00 16.59
1.68 0.701 56.00 16.06
1.71 0.678 57.00 15.54
1.74 0.656 58.00 15.04
1.77 0.635 59.00 14.56
1.80 0.615 60.00 14.10
1.83 0.595 61.00 13.64
1.86 0.576 62.00 13.21
1.89 0.558 63.00 12.78
1.92 0.540 64.00 12.37
1.95 0.523 65.00 11.98
1.98 0.506 66.00 11.59
2.01 0.490 67.00 11.22
2.04 0.474 68.00 10.86
2.07 0.459 69.00 10.51
2.10 0.444 70.00 10.18
2.13 0.430 71.00 9.85
2.16 0.416 72.00 9.54
2.19 0.403 73.00 9.23
2.22 0.390 74.00 8.93
2.25 0.377 75.00 8.65
2.28 0.365 76.00 8.37
2.31 0.354 77.00 8.10
2.34 0.342 78.00 7.84
2.37 0.331 79.00 7.59
2.40 0.321 80.00 7.35
2.43 0.310 81.00 7.11
2.46 0.300 82.00 6.89
2.49 0.291 83.00 6.66
2.52 0.281 84.00 6.45
sa9311WD02%ca1¢5%Wg4 pt"d lam= 2.28 PM Pagel 1 of 13

:The
Pre serve Jordan Pon d E 11 Q-

Storm Ro utino Table - 100-v r
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) (d) fm
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.14 2 0.04 0.0 31.0 0.0 0.0 0.0 0.0
3.00 0.32 2 0.04 0.0 30.4 0.0 0.0 0.0 0.0
4.00 0.56 19 0.14 0.0 58.0 0.2 0.1 0.0 0.1
5.00 0.88 48 0.24 0.0 76.2 0.5 0.1 0.0 0.1
6.00 1.25 94 0.36 0.0 92.8 0.9 0.1 0.0 0.1
7.00 1.70 162 0.49 0.0 108.5 1.4 0.1 0.0 0.1
8.00 2.20 254 0.64 0.0 123.8 2.1 0.2 0.0 0.2
9.00 2.76 376 0.80 0.0 138.6 2.9 0.2 0.0 0.2
10.00 3.37 530 0.98 0.0 153.1 3.9 0.2 0.0 0.2
11.00 4.03 720 1.17 0.0 167.3 5.1 0.2 0.0 0.2
12.00 4.74 948 1.37 0.0 181.2 6.5 0.2 0.0 0.2
13.00 5.49 1218 1.59 0.0 194.8 7.8 0.3 0.0 0.3
14.00 6.28 1531 1.81 0.0 208.2 8.8 0.3 0.0 0.3
15.00 7.10 1891 2.05 0.0 221.3 9.7 0.3 0.0 0.3
16.00 7.95 2299 2.30 0.0 234.2 10.6 0.3 0.0 0.3
17.00 8.82 2757 2.55 0.0 246.8 11.4 0.3 0.0 0.3
18.00 9.70 3266 2.81 0.0 259.2 12.2 0.4 0.0 0.4
19.00 10.60 3826 3.08 0.0 271.4 13.0 0.4 0.0 0.4
20.00 11.50 4440 3.36 0.0 283.3 13.7 0.4 0.0 0.4
21.00 12.40 5107 3.64 0.0 295.0 14.5 0.4 0.0 0.4
22.00 13.29 5826 3.93 0.0 306.5 15.2 0.4 0.0 0.4
23.00 14.18 6599 4.23 0.0 317.8 15.9 0.4 0.0 0.4
24.00 15.04 7423 4.53 0.0 328.8 16.5 0.4 0.0 0.4
25.00 15.89 8299 4.83 0.0 339.6 17.2 0.5 0.0 0.5
26.00 16.71 9225 5.13 1.3 350.2 17.8 0.5 0.0 1.8
27.00 17.49 10122 5.42 7.1 359.7 18.4 0.5 0.0 7.6
28.00 18.24 10717 5.60 12.2 365.7 18.7 0.5 0.0 12.7
29.00 18.94 11048 5.70 15.4 368.9 18.9 0.5 0.0 15.9
30.00 19.60 11231 5.75 17.2 370.7 19.0 0.5 0.0 17.7
31.00 20.21 11344 5.79 18.4 371.8 19.1 0.5 0.0 18.9
32.00 20.77 11423 5.81 19.2 372.5 19.1 0.5 0.0 19.6
33.00 21.26 11490 5.83 19.9 373.2 19.2 0.5 0.0 19.7
34.00 21.70 11585 5.86 20.9 374.0 19.2 0.5 0.0 19.7
35.00 22.07 11703 5.89 22.2 375.1 19.3 0.5 0.0 19.8
36.00 22.38 11839 5.93 23.7 376.4 19.4 0.5 0.0 19.9
37.00 22.62 11989 5.97 25.4 377.8 19.4 0.5 0.0 20.0
38.00 22.79 12148 6.02 27.2 379.2 19.5 0.5 0.0 20.1
39.00 22.89 12310 6.07 29.1 380.7 19.6 0.5 0.3 20.4
40.00 22.92 12460 6.11 30.8 382.0 19.7 0.5 0.5 20.8
41.00 22.88 12590 6.15 32.4 383.2 19.8 0.5 0.8 21.1
42.00 22.77 12695 6.18 33.6 384.1 19.8 0.5 1.1 21.4
43.00 22.58 12774 6.20 34.6 384.8 19.9 0.5 1.3 21.7
44.00 22.33 12827 6.21 35.2 385.2 19.9 0.5 1.5 21.9
45.00 22.02 12854 6.22 35.6 385.5 19.9 0.5 1.5 22.0
46.00 21.63 12857 6.22 35.6 385.5 19.9 0.5 1.6 22.0
47.00 21.19 12836 6.21 35.3 385.3 19.9 0.5 1.5 21.9
48.00 20.68 12792 6.20 34.8 384.9 19.9 0.5 1.4 21.8
49.00 20.11 12727 6.18 34.0 384.4 19.8 0.5 1.2 21.5
50.00 19.52 12641 6.16 33.0 383.6 19.8 0.5 1.0 21.3
51.00 18.90 12536 6.13 31.7 382.7 19.7 0.5 0.7 21.0
52.00 18.29 12412 6.10 30.3 381.6 19.7 0.5 0.4 20.6
53.00 17.70 12271 6.06 28.6 3803 19.6 0.5 0.2 20.3
54.00 17.14 12115 6.01 26.8 378.9 19.5 0.5 0.0 20.0
55.00 16.59 11940 5.96 24.8 377.3 19.4 0.5 0.0 19.9
56.00 16.06 11740 5.90 22.6 375.5 19.3 0.5 0.0 19.8
57.00 15.54 11513 5.84 20.2 373.4 19.2 0.5 0.0 19.7
58.00 15.04 11264 5.76 17.6 371.0 19.0 0.5 0.0 18.1
59.00 14.56 11083 5.71 15.7 369.3 18.9 0.5 0.0 16.2
60.00 14.10 10982 5.68 14.7 368.3 18.9 0.5 0.0 15.2
s:%faii06Dzmaics%wg4l3.64 10913 5.66 14A*,.a iam=369e6, 18.8 0.5 0.0 114@612 of 13
The Pr eserve a t Jordan L ake - P, t
62.00 13.21 10859 5.64 13.5 367.1 18.8 0.5 0.0 14.0
63.00 12.78 10808 5.63 13.1 366.6 18.8 0.5 0.0 13.6
64.00 12.37 10761 5.61 12.6 366.1 18.8 0.5 0.0 13.1
65.00 11.98 10716 5.60 12.2 365.7 18.7 0.5 0.0 12.7
66.00 11.59 10672 5.58 11.8 365.3 18.7 0.5 0.0 12.3
67.00 11.22 10630 5.57 11.4 364.8 18.7 0.5 0.0 11.9
68.00 10.86 10588 5.56 11.0 364.4 18.7 0.5 0.0 11.5
69.00 10.51 10548 5.55 10.7 364.0 18.6 0.5 0.0 11.2
70.00 10.18 10508 5.53 10.3 363.6 18.6 0.5 0.0 10.8
71.00 9.85 10470 5.52 10.0 363.2 18.6 0.5 0.0 10.5
72.00 9.54 10432 5.51 9.7 362.9 18.6 0.5 0.0 10.2
73.00 9.23 10395 5.50 9.3 362.5 18.5 0.5 0.0 9.8
74.00 8.93 10359 5.49 9.0 362.1 18.5 0.5 0.0 9.5
75.00 8.65 10323 5.48 8.7 361.8 18.5 0.5 0.0 9.2
76.00 8.37 10289 5.47 8.4 361.4 18.5 0.5 0.0 8.9
77.00 8.10 10255 5.46 8.2 361.1 18.5 0.5 0.0 8.7
78.00 7.84 10222 5.45 7.9 360.7 18.4 0.5 0.0 8.4
79.00 7.59 10190 5.44 7.6 360.4 18.4 0.5 0.0 8.1
80.00 7.35 10158 5.43 7.4 360.1 18.4 0.5 0.0 7.9
81.00 7.11 10127 5.42 7.1 359.8 18.4 0.0 7.1
82.00 6.89 10126 5.42 7.1 359.7 18.4 0.0 7.1
83.00 6.66 10112 5.41 7.0 359.6 18.4 0.0 7.0
84.00 6.45 10092 5.41 6.8 359.4 18.4 0.0 6.8
9:%l311 Uow2%ealcs%wg4 prialed 1OMW zza PM Page 13 of 13
ANTI-FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND 94

FLOTATION OF RISER

RISER DIMENSIONS
Inside Dimensions Width = 2.0 feet
Length = 2.0 feet

ELEV. c@ TOP OF RISER = 279.00
ELEV. @ BOT. OF RISER = 274.00
H = 5.00 ft
AREA OF RISER = 4.0 SF
VOLUME OF RISER = 20.0 Cubic Feet

DIAMETER OF BARREL = 18 Inch
AREA OF BARREL = 1.8 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 10.6 Cubic Feet

WEIGHT OF WATER DISPLACED = 1909.62 lb
FACTOR OF SAFETY (10%) 2100.58 lb

VOLUME OF CONCRETE ANCHOR = 24.0 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension 2lx2@
Weight of Concrete 3100 lb

ANIT-FLOTATION WEIGHT REQUIRED = -999 lb
ANIT-FLOTATION VOLUME REQUIRED = -11.4 Cubic Feet

ANTI-FLOTATION PAD REQUIRED
DEPTH = 0.00 ft
WIDTH = 0.00 ft
LENGTH= 0.00 ft

VOLUME PROVIDED = 0.0 Cubic Feet

O, NO CONCRETE PAD REQUIRED

FES AT PERMANENT WATER QUALITY POND 94
flow Q in cfs : 20 Flow depth (ft) = 1.50
slope S in ft/ft :.01 Outlet velocity (fps) = 11.318
pipe diameter D in ft : 1.5
Manning number n :.012
ZONE 2
For a pipe diameter of 1.50 feet and
an outlet velocity of 11.32 feet per second:
The recommended apron length is 9.00 feet.
The maximum stone diameter is 18.7 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 6 B 22
?M1APERVIOUS CALCULATION FOR PERMANENT
II WATER QUALITY DRY POND #5
# Lots s.f./Lot Total
8 6,500 52,000
Roadways 17,420 s.f.
Lots (houses, drives, etc.) 52,000 s.f.
Sidewalks - s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 69,420 s.f.
Total Area = 6.51 ac.
Impervious Area = 1.59 ac.
Impervious Percentage = 24.5%
The storage volume for the 1" storm (Schueler Method) would be:
Rv = .05+.009 (1)
RV= 0.271
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.14674625 ac.ft
6,392 cf
6,392 c.f. storage required.
7,671 c.f, required including an additional 20% for sediment storage
7,679 c.f. storage provided.
Itorage Provided
Incremental Total
Elev. Area (s f) Volume (c.f.) Volume (c.f.) Depth (ft.)
292 902
2,729 2,729
294 1,827
296 3,123
4,950 7,679
Orifice required for 2-5 Day Drawdown
Drawdown cala 4.0 feet of storage so, say 2.0 feet of average head
y Using a 1" orifice Q2-day= 6,363
Q = 0.04 ofs Q5-day= 15,908
So, a 1" Orifice will drawdown pond in 2.41 days
2
4
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The Preserve at Jordan 11 '1 '
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
Post-Development 10-yr
Drainage Area, (DA) = 6.51 acres
Overland Plow
Elevation of most remote point, (HI) = 0.1 feet
Elevation of point of design, (1-12) = 0.0 feet
Length of travel, (L)
= 0.0 feet

Mult. factor = 2 0
Travel Time (Overland) = 0.0 minutes
Channel Plow
Elevation of most remote point, (Hl) = 370.0 feet
Elevation of point of design, (H2) = 292.0 feet
Length of travel, (L) = 780.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 3.2 minutes
Pipe Flow
Elevation of most remote point, (Hl) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 7.22 inches/hr
Area 1 (Impervious) = 1.59 acres
Area 2 (Pervious) = 4.92 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) 038
Peak Release Rate, (Q10) _> 18 cfs
Post-Development Runoff- 25-yr _
Drainage Area, (DA) = 6.51 acres
Timemf Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) _> 0.38
Peak Release Rate, (Qz) _> 21 cfs
Post-Development Runoff 100-yr
Drainage Area, (DA) _
Time of Concentration, (Tc)
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Qtoo) _>
6.51 acres
5.0 minutes
9.67 inches
0.38
24 cfs
s:%1811%0002%cakslw0 printed 10M= 7.14 PM Page t of 13
Pr
The eserve
at -Jordan ED D Pond #P5
Stage - S torage Funct ion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
292 751 -
294 1,677 2,428 2,428 2.00 7.79 0.69 2.02
296.0 2,973 4,650 7,078 4.00 8.86 1.39 3.90
298.0 4,576 7,549 14,627 6.00 9.59 1.79 6.10
Check
Stage Storage
2 2,391
4 7,375
6 14,252
Regression Output.
b: 1.62 (X Variable Coed
K 775 (e ° "`°p')
Stage - Storage Equation is of the form: S = (KsxZ)
Stage - Discharge Relationship
Bottom Dry Pond Elevation 292.0 feet
Water Surface Elev. (Q10) _ :`)6.7,S feet
Water Surface Elev. (Q25) _ --97.13 feet
Water Surface Elev. (Qloo) = 297.3-2 feet
Primary Spillway
i
Bartel
Dia, of Barrel = 18 inches
Area of Barrel, (Ab) = 1.77 sf
Pipe Length, (L) = 46.0 feet
Friction Coeff., (Kp) = 0.01550
Inv, of Barrel = 292.00 feet
Riser
Elev, of Riser Crest = 296.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - s4- ft.
Water Quality Orifice 1 " 0.0055
s:11311M00021.1*AWg5 printed 100003:23 PM
Page 2 of 13
The Preserve at Jordan Lake - EDD Pond #P5
Rectangular.
Length of Riser = 2 feet
Width of Riser = 2 feet
Weir Length = 8 feet
Area of Riser = 4 sq.ft.
Width of Spillway (Approx.) = 10 feet
Weir Coefficient = 3.0
Crest Elevation = 297 feet
s:%131110o0¢WaIeswry5 prvAeQ 10M=2:14ara Page 3 of 13
11 Pond #P5
:The Preserve at Jordan Lake - 'Inflow og 10-yr
Peak Inflow, (Qlo) => 18 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S_ 2.66 in.
Q*= 1.88 in. (depth of runoff)
Vol= 44,489 cf (vol. of runoff)
Time to Peak, (Tp) => 29.61 minutes
(SCS TR-55)
oiaa t 4
(min)
0.00 0.000 0 0.00
0.03 0.003 1 0.05
0.07 0.011 2 0.20
0.10 0.025 3 0.45
0.14 0.044 4 0.80
0.17 0.069 5 1.24
0.20 0.098 6 1.76
0.24 0.132 7 2.37
0.27 0.170 8 3.05
0.30 0.211 9 3.80
0.34 0.256 10 4.61
0.37 0.304 11 5.47
0.41 0.353 12 6.37
0.44 0.405 13 7.29
0.47 0.457 14 8.24
0.51 0.510 15 9.19
0.54 0.563 16 10.15
0.57 0.615 17 11.09
0.61 0.666 18 12.00
0.64 0.715 19 12.89
0.68 0.762 20 13.73
0.71 0.806 21 14.51
0.74 0.846 22 15.24
0.78 0.882 23 15.89
0.81 0.914 24 16.47
0.84 0.941 25 16.96
0.88 0.964 26 17.36
0.91 0.981 27 17.67
0.95 0.993 28 17.88
0.98 0.999 29 18.00
1.01 1.000 30 18.01
1.05 0.995 31 17.92
1.08 0.984 32 17.73
1.11 0.968 33 17.44
1.15 0.947 34 17.06
1.18 0.920 35 16.58
1.22 0.889 36 16.02
1.25 0.854 37 15.39
1.28 0.818 38 14.74
1.32 0.783 39 14.11
1.35 0.750 40 1150
1.38 0.717 41 12.92
1.42 0.687 42 12.37
1.45 0.657 43 11.84
1.49 0.629 44 11.33
1.52 0.602 45 10.84
1.55 0.576 46 1038
1.59 0.551 47 9.93
1.62 0.528 48 9.50
1.65 0.505 49 9.10
1.69 0.483 50 8.70
1.72 0.462 51 8.33
sA1311 W002%Ca1cs1Wg5 prlrted 10MM 2--14 PM
Page 4 of 13
he Preserve at Jordan 11 'i '
1.76 0.443 52 7.97
1.79 0.424 53 7.63
1.82 0.405 54 7.30
1.86 0.388 55 6.99
1.89 0.371 56 6.69
1.93 0.355 57 6.40
1.96 0.340 58 6.13
1.99 0.325 59 5.86
2.03 0.311 60 5.61
2.06 0.298 61 5.37
2.09 0.285 62 5.14
2.13 0.273 63 4.92
2.16 0.261 64 4.71
2.20 0.250 65 4.51
2.23 0.239 66 4.31
2.26 0.229 67 4.13
2.30 0.219 68 3.95
2.33 0.210 69 3.78
2.36 0.201 70 3.62
2.40 0.192 71 3.46
2.43 0.184 72 3.31
2.47 0.176 73 3.17
2.50 0.168 74 3.03
2.53 0.161 75 2.90
2.57 0.154 76 2.78
2.60 0.148 77 2.66
2.63 0.141 78 2.55
2.67 0.135 79 2.44
2.70 0.129 80 2.33
2.74 0.124 81 2.23
2.77 0.119 82 2.14
2.80 0.113 83 2.04
2.84 0.109 84 1.96
2.87 0.104 85 1.87
2.90 0.099 86 1.79
2.94 0.095 87 1.71
2.97 0.091 88 1.64
sA1311UXX 2%caks%WO pintail 1019= 2:14 PM Page 5 of 13
The Pre serve at Jordan La ke - /1 Pond #P5

Storm •, t
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) WS) (cf) im WS) WS) (??
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.05 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.20 3 0.03 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.45 13 0.08 0.0 0.0 0.1 0.1 0.0 0.1
4.00 0.80 36 0.15 0.0 0.0 0.2 0.1 0.0 0.1
5.00 1.24 79 0.25 0.0 0.0 0.5 0.1 0.0 0.1
6.00 1.76 147 0.36 0.0 0.0 0.9 0.1 0.0 0.1
7.00 2.37 246 0.49 0.0 0.0 1.4 0.1 0.0 0.1
8.00 3.05 379 0.64 0.0 0.0 2.1 0.2 0.0 0.2
9.00 3.80 552 0.81 0.0 0.0 2.9 0.2 0.0 0.2
10.00 4.61 769 1.00 0.0 0.0 4.0 0.2 0.0 0.2
11.00 5.47 1033 1.19 0.0 0.0 5.2 0.2 0.0 0.2
12.00 6.37 1348 1.41 0.0 0.0 6.7 0.2 0.0 0.2
13.00 7.29 1715 1.63 0.0 0.0 8.0 0.3 0.0 0.3
14.00 8.24 2136 1.87 0.0 0.0 9.0 0.3 0.0 0.3
15.00 9.19 2613 2.11 0.0 0.0 9.9 0.3 0.0 0.3
16.00 10.15 3147 2.37 0.0 0.0 10.8 0.3 0.0 0.3
17.00 11.09 3736 2.63 0.0 0.0 11.7 0.3 0.0 0.3
18.00 12.00 4381 2.90 0.0 0.0 12.5 0.4 0.0 0.4
19.00 12.89 5079 3.18 0.0 0.0 13.3 0.4 0.0 0.4
20.00 13.73 5830 3.46 0.0 0.0 14.0 0.4 0.0 0.4
21.00 14.51 6630 3.75 0.0 0.0 14.7 0.4 0.0 0.4
22.00 15.24 7476 4.03 0.2 28.3 15.4 0.4 0.0 0.6
23.00 15.89 8355 4.32 4.8 87.3 16.1 0.4 0.0 5.2
24.00 16.47 8997 4.52 9.9 111.5 16.5 0.4 0.0 10.4
25.00 16.96 9363 4.63 13.3 123.0 16.8 0.5 0.0 13.7
26.00 17.36 9556 4.69 15.2 128.5 16.9 0.5 0.0 15.6
27.00 17.67 9660 4.72 16.2 131.4 17.0 0.5 0.0 16.7
28.00 17.88 9720 4.74 16.8 133.0 17.0 0.5 0.0 17.3
29.00 18.00 9755 4.75 17.2 134.0 17.0 0.5 0.0 17.5
30.00 18.01 9786 4.76 17.5 134.8 17.0 0.5 0.0 17.5
31.00 17.92 9817 4.77 17.8 135.6 17.1 0.5 0.0 17.5
32.00 17.73 9841 4.78 18.1 136.2 17.1 0.5 0.0 17.5
33.00 17.44 9852 4.78 18.2 136.5 17.1 0.5 0.0 17.5
34.00 17.06 9846 4.78 18.1 136.4 17.1 0.5 0.0 17.5
35.00 16.58 9817 4.77 17.8 135.6 17.1 0.5 0.0 17.5
36.00 16.02 9761 4.75 17.3 134.1 17.0 0.5 0.0 17.5
37.00 15.39 9673 4.73 16.4 131.8 17.0 0.5 0.0 16.8
38.00 14.74 9588 4.70 15.5 129.4 16.9 0.5 0.0 15.9
39.Q0 14.11 9515 4.68 14.8 127.4 16.9 0.5 0.0 15.2
40.00 13.50 9448 4.66 14.1 125.4 16.8 0.5 0.0 14.6
41.00 12.92 9384 4.64 13.5 123.6 16.8 0.5 0.0 13.9
42.00 12.37 9323 4.62 12.9 121.8 16.7 0.5 0.0 13.4
43.00 11.84 9263 4.60 12.3 120.0 16.7 0.5 0.0 12.8
44.00 11.33 9206 4.58 11.8 118.2 16.7 0.5 0.0 12.3
45.00 10.84 9150 4.57 11.3 116.5 16.6 0.5 0.0 11.7
46.00 10.38 9096 4.55 10.8 114.7 16.6 0.4 0.0 11.2
47.00 9.93 9044 4.53 10.3 113.0 16.6 0.4 0.0 10.8
48.00 9.50 8993 4.52 9.9 111.4 16.5 0.4 0.0 10.3
49.00 9.10 8943 4.50 9.4 109.7 16.5 0.4 0.0 9.9
50.00 8.70 8896 4.49 9.0 108.1 16.5 0.4 0.0 9.5
51.00 8.33 8849 4.47 8.6 106.5 16.4 0.4 0.0 9.1
52.00 7.97 8804 4.46 8.3 104.9 16.4 0.4 0.0 8.7
53.00 7.63 8761 4.45 7.9 103.3 16.4 0.4 0.0 8.3
54.00 7.30 8718 4.43 7.5 101.8 16.3 0.4 0.0 8.0
55.00 6.99 8677 4.42 7.2 100.3 16.3 0.4 0.0 7.7
56.00 6.69 8637 4.41 6.9 98.8 16.3 0.4 0.0 7.3
57.00 6.40 8599 4.40 6.6 97.3 16.2 0.4 0.0 7.0
58.00 6.13 8561 4.38 6.3 95.8 16.2 0.4 0.0 6.7
59.00 5.86 8525 4.37 6.0 94.4 16.2 0.4 0.0 6.5
60.00 5.61 8489 4.36 5.7 93.0 16.2 0.4 0.0 6.2
5: I"aenmk xwo 5.37 8455 4.35 $&.d 10I =2:9t1PA 16.1 0.4 0.0 8Aje 6 of 13
The Pre serve at Jordan La ke - 11 'o
nd '
#1 -,
1
62.00 5.14 8421 4.34 5.2 90.2 16.1 0.4 0.0 5.7
63.00 4.92 8389 4.33 5.0 88.8 16.1 0.4 0.0 5.4
64.00 4.71 8358 4.32 4.8 87.4 16.1 0.4 0.0 5.2
65.00 4.51 8327 4.31 4.6 86.1 16.1 0.4 0.0 5.0
66.00 4.31 8297 4.30 4.4 84.8 16.0 0.4 0.0 4.8
67.00 4.13 8268 4.29 4.2 83.5 16.0 0.4 0.0 4.6
68.00 3.95 8240 4.28 4.0 82.2 16.0 0.4 0.0 4.4
69.00 3.78 8213 4.27 3.8 80.9 16.0 0.4 0.0 4.2
70.00 3.62 8187 4.27 3.6 79.6 16.0 0.4 0.0 4.0
71.00 3.46 8161 4.26 3.4 78.4 15.9 0.4 0.0 3.9
72.00 3.31 8136 4.25 3.3 77.2 15.9 0.4 0.0 3.7
73.00 3.17 8112 4.24 3.1 75.9 15.9 0.4 0.0 3.6
74.00 3.03 8088 4.23 3.0 74.7 15.9 0.4 0.0 3.4
75.00 2.90 8065 4.23 2.8 73.5 15.9 0.4 0.0 3.3
76.00 2.78 8043 4.22 2.7 72.4 15.8 0.4 0.0 3.1
77.00 2.66 8021 4.21 2.6 71.2 15.8 0.4 0.0 3.0
78.00 2.55 8000 4.21 2.5 70.0 15.8 0.4 0.0 2.9
79.00 2.44 7980 4.20 2.3 68.9 15.8 0.4 0.0 2.8
80.00 2.33 7960 4.19 2.2 67.8 15.8 0.4 0.0 2.7
81.00 2.23 7940 4.19 2.1 66.6 15.8 0.4 0.0 2.5
82.00 2.14 7921 4.18 2.0 65.5 15.8 0.4 0.0 2.4
83.00 2.04 7903 4.17 1.9 64.4 15.7 0.4 0.0 2.3
84.00 1.96 7885 4.17 1.8 63.3 15.7 0.4 0.0 2.2
85.00 1.87 7867 4.16 1.7 62.3 15.7 0.4 0.0 2.2
86.00 1.79 7850 4.16 1.6 61.2 15.7 0.4 0.0 2.1
87.00 1.71 7834 4.15 1.6 60.1 15.7 0.4 0.0 2.0
88.00 1.64 7818 4.15 1.5 59.1 15.7 0.4 0.0 1.9
'Inflow o!
Peak Inflow, (Q50) = 21 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 58,546 cf (vol. ofrunoft)
Time to Peak, (Tp) 33.96 minutes
(SCS TR-55)
t/tv oiop t s
(min) efs
0.00 0.000 0.00 0.00
0.03 0.002 1.00 0.04
0.06 0.009 100 0.18
0.09 0.019 3.00 0.40
0.12 0.034 4.00 0.70
0.15 0.053 5.00 1.09
0.18 0.075 6.00 1.55
0.21 0.101 7.00 2.09
0.24 0.131 8.00 2.70
0.26 0.163 9.00 3.38
0.29 0.199 10.00 4.11
0.32 0.237 11.00 4.90
0.35 0.278 12.00 5.74
0.38 0.320 13.00 6.61
0.41 0.364 14.00 7.52
0.44 0.409 15.00 8.45
0.47 0.455 16.00 9.40
0.50 0.501 17.00 10.35
0.53 0.547 18.00 11.31
0.56 0.593 19.00 12.25
0.59 0.638 20.00 13.18
0.62 0.682 21.00 14.09
0.65 0.724 22.00 14.96
0.68 0.764 23.00 15.79
s:113111000Zk ks1Wg5 printed 10!8!00 214 PM
Page 7 of 13
The Preserve at Jordan ED D Pond #P5
0.71 0.802 24.00 16.58
0.74 0.838 25.00 17.32
0.77 0.870 26.00 17.99
0.79 0.900 27.00 18.60
0.82 0.926 28.00 19.14
0.85 0.948 29.00 19.60
0.88 0.967 30.00 19.98
0.91 0.981 31.00 20.28
0.94 0.992 32.00 20.50
0.97 0.998 33.00 20.63
1.00 1.000 34.00 20.67
1.03 0.998 35.00 20.62
1.06 0.991 36.00 20.49
1.09 0.980 37.00 2016
1.12 0.966 38.00 19.96
1.15 0.947 39.00 19.57
1.18 0.924 40.00 19.10
1.21 0.898 41.00 18.56
1.24 0.868 42.00 17.94
1.27 0.837 43.00 17.30
1.30 0.806 44.00 16.65
1.32 0.775 45.00 16.02
1.35 0.746 46.00 15.42
1.38 0.718 47.00 14.84
1.41 0.691 48.00 14.29
1.44 0.665 49.00 13.75
1.47 0.640 50.00 13.23
1.50 0.616 51.00 12.74
1.53 0.593 52.00 12.26
1.56 0.571 53.00 11.80
1.59 0.549 54.00 11.35
1.62 0.529 55.00 10.93
1.65 0.509 56.00 10.52
1.68 0.490 57.00 10.12
1.71 0.471 58.00 9.74
1.74 0.454 59.00 9.38
1.77 0.437 60.00 9.02
1.80 0.420 61.00 8.69
1.83 0.404 62.00 8.36
1.85 0.389 63.00 8.05
1.88 0.375 64.00 7.74
1.91 0.361 65.00 7.45
1.94 0.347 66.00 7.17
1.97 0.334 67.00 6.90
2.00 0.321 68.00 6.64
2.03 0.309 69.00 6.39
2.06 0.298 70.00 6.15
2.09 0.287 71.00 5.92
2.12 0.276 72.00 5.70
2.15 0.265 73.00 5.49
2.18 0.256 74.00 5.28
2.21 0.246 75.00 5.08
2.24 0.237 76.00 4.89
2.27 0.228 77.00 4.71
2.30 0.219 78.00 4.53
2.33 0.211 79.00 4.36
2.36 0.203 80.00 4.20
s:%l3»XOOO2Waicslwq5 pirded 1MV=2:14 PM Page 8 of 13
The Pre serve at Jordan L ake - 11 Pond #P5

Storm •o
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(n&) isksl (cf) im (cfs) (cfs) (cfs) (Cfs) WS) (efs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.18 3 0.03 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.40 11 0.07 0.0 0.0 0.1 0.1 0.0 0.1
4.00 0.70 31 0.14 0.0 0.0 0.2 0.1 0.0 0.1
5.00 1.09 69 0.22 0.0 0.0 0.4 0.1 0.0 0.1
6.00 1.55 128 0.33 0.0 0.0 0.8 0.1 0.0 0.1
7.00 109 214 0.45 0.0 0.0 1.2 0.1 0.0 0.1
8.00 2.70 331 0.59 0.0 0.0 1.8 0.2 0.0 0.2
9.00 3.38 483 0.75 0.0 0.0 2.6 0.2 0.0 0.2
10.00 4.11 675 0.92 0.0 0.0 3.5 0.2 0.0 0.2
11.00 4.90 910 1.10 0.0 0.0 4.7 0.2 0.0 0.2
12.00 5.74 1190 1.30 0.0 0.0 6.0 0.2 0.0 0.2
13.00 6.61 1520 1.51 0.0 0.0 7.4 0.3 0.0 0.3
14.00 7.52 1902 1.74 0.0 0.0 8.5 0.3 0.0 0.3
15.00 8.45 2336 1.97 0.0 0.0 9.4 0.3 0.0 0.3
16.00 9.40 2825 2.22 0.0 0.0 10.3 0.3 0.0 0.3
17.00 10.35 3370 2.47 0.0 0.0 11.2 0.3 0.0 0.3
18.00 11.31 3972 2.73 0.0 0.0 12.0 0.3 0.0 0.3
19.00 12.25 4629 3.00 0.0 0.0 12.8 0.4 0.0 0.4
20.00 13.18 5342 3.28 0.0 0.0 13.5 0.4 0.0 0.4
21.00 14.09 6110 3.56 0.0 0.0 14.3 0.4 0.0 0.4
22.00 14.96 6932 3.85 0.0 0.0 15.0 0.4 0.0 0.4
23.00 15.79 7804 4.14 1.4 58.2 15.7 0.4 0.0 1.8
24.00 16.58 8642 4.41 6.9 99.0 16.3 0.4 0.0 7.4
25.00 17.32 9195 4.58 11.7 117.8 16.7 0.5 0.0 12.2
26.00 17.99 9504 4.68 14.7 127.1 16.9 0.5 0.0 15.1
27.00 18.60 9676 4.73 16.4 131.8 17.0 0.5 0.0 16.8
28.00 19.14 9782 4.76 17.5 1343 17.0 0.5 0.0 17.5
29.00 19.60 9880 4.79 18.5 137.3 17.1 0.5 0.0 17.6
30.00 19.98 10002 4.82 19.8 140.4 17.2 0.5 0.0 17.6
31.00 20.28 10143 4.87 21.3 143.9 17.3 0.5 0.0 17.7
32.00 20.50 10296 4.91 23.0 147.6 17.4 0.5 0.0 17.8
33.00 20.63 10456 4.96 24.8 151.3 17.5 0.5 0.0 17.9
34.00 20.67 10618 5.01 26.6 155.0 17.6 0.5 0.0 18.0
35.00 20.62 10776 5.05 28.5 158.5 17.6 0.5 0.4 18.5
36.00 20.49 10905 5.09 30.0 161.3 17.7 0.5 0.8 19.0
37.00 20.26 10995 5.11 31.1 163.2 17.8 0.5 1.2 19.4
38.00 19.96 11046 5.13 31.7 164.2 17.8 0.5 1.4 19.7
39.00 19.57 11063 5.13 31.9 164.6 17.8 0.5 1.5 19.8
40.00 19.10 11051 5.13 31.7 164.3 17.8 0.5 1.4 19.7
41.00 18.56 11015 5.12 31.3 163.6 17.8 0.5 1.3 19.5
42.00 17.94 10958 5.10 30.6 162.4 17.8 0.5 1.0 19.2
43.00 17.30 10880 5.08 29.7 160.7 17.7 0.5 0.7 18.9
44.00 16.65 10785 5.05 28.6 158.7 17.7 0.5 0.4 18.5
45.00 16.02 10674 5.02 27.3 156.3 17.6 0.5 0.1 18.2
46.00 15.42 10546 4.98 25.8 153.4 17.5 0.5 0.0 18.0
47.00 14.84 10393 4.94 24.1 149.9 17.4 0.5 0.0 17.9
48.00 14.29 10210 4.89 22.0 145.5 17.3 0.5 0.0 17.8
49.00 13.75 10001 4.82 19.8 140.4 17.2 0.5 0.0 17.6
50.00 13.23 9768 4.76 17.3 134.3 17.0 0.5 0.0 17.5
51.00 12.74 9512 4.68 14.7 127.3 16.9 0.5 0.0 15.2
52.00 12.26 9364 4.63 13.3 123.0 16.8 0.5 0.0 13.8
53.00 11.80 9274 4.61 12.4 120.3 16.7 0.5 0.0 12.9
54.00 11.35 9208 4.59 11.8 118.3 16.7 0.5 0.0 12.3
55.00 10.93 9153 4.57 11.3 116.5 16.6 0.5 0.0 11.8
56.00 10.52 9102 4.55 10.9 114.9 16.6 0.4 0.0 11.3
57.00 10.12 9055 4.54 10.4 113.4 16.6 0.4 0.0 10.9
58.00 9.74 9010 4.52 10.0 111.9 16.5 0.4 0.0 10.5
59.00 9.38 8966 4.51 9.6 110.5 16.5 0.4 0.0 10.1
60.00 9.02 8923 4.50 9.3 109.0 16.5 0.4 0.0 9.7
5m"iWzeat" wo 8.69 8882 4.48 ?Pa.& 10/WW 2110'A6 16.4 0.4 0.0 9*e 9 of 13
The Pre serve at Jordan Pond #P5
62.00 8.36 8841 4.47 8.6 106.2 16.4 0.4 0.0 9.0
63.00 8.05 8802 4.46 8.2 104.8 16.4 0.4 0.0 8.7
64.00 7.74 8764 4.45 7.9 103.5 16.4 0.4 0.0 8.4
65.00 7.45 8727 4.44 7.6 102.1 16.3 0.4 0.0 8.1
66.00 7.17 8691 4.43 7.3 100.8 16.3 0.4 0.0 7.8
67.00 6.90 8655 4.41 7.0 99.5 16.3 0.4 0.0 7.5
68.00 6.64 8621 4.40 6.8 98.1 16.3 0.4 0.0 7.2
69.00 6.39 8587 4.39 6.5 96.9 16.2 0.4 0.0 6.9
70.00 6.15 8555 4.38 6.2 95.6 16.2 0.4 0.0 6.7
71.00 5.92 8523 4.37 6.0 94.3 16.2 0.4 0.0 6.4
72.00 5.70 8492 4.36 5.8 93.1 16.2 0.4 0.0 6.2
73.00 5.49 8462 4.35 5.5 91.8 16.2 0.4 0.0 6.0
74.00 5.28 8432 4.34 5.3 90.6 16.1 0.4 0.0 5.8
75.00 5.08 8404 4.33 5.1 89.4 16.1 0.4 0.0 5.5
76.00 4.89 8376 4.33 4.9 88.2 16.1 0.4 0.0 5.3
77.00 4.71 8348 4.32 4.7 87.0 16.1 0.4 0.0 5.2
78.00 4.53 8322 4.31 4.5 85.9 16.1 0.4 0.0 5.0
79.00 4.36 8296 4.30 4.3 84.7 16.0 0.4 0.0 4.8
80.00 4.20 8271 4.29 4.2 83.6 16.0 0.4 0.0 4.6

Hy
Inflow drograph 1
o 00-yr
Peak Inflow, (QI00) = 24 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoff
Vol= 81,699 cf (vol. of runoff
Time to Peak, (TO 40.62 minutes
(SCS TR-55)
Q?QP t s
(min) s
0.00 0.000 0.00 0.00
0.03 0.001 1.00 0.04
0.06 0.006 2.00 0.14
0.09 0.013 3.00 0.32
0.12 0.024 4.00 0.57
0.15 0.037 5.00 0.89
0.18 0.053 6.00 1.27
0.21 0.071 7.00 1.72
0.24 0.093 8.00 2.23
0.26 0.116 9.00 2.80
0.29 0.142 10.00 3.43
0.32 0.170 11.00 4.11
0.35 0.200 12.00 4.83
0.38 0.232 13.00 5.60
0.41 0.266 14.00 6.40
0.44 0.300 15.00 7.24
0.47 0.336 16.00 8.11
0.50 0.373 17.00 9.00
0.53 0.411 18.00 9.91
0.56 0.449 19.00 10.84
0.59 0.488 20.00 11.77
0.62 0.527 21.00 12.70
0.65 0.565 22.00 13.63
0.68 0.603 23.00 14.54
0.71 0.641 24.00 15.45
0.74 0.677 25.00 16.33
0.77 0.713 26.00 17.19
0.79 0.747 27.00 18.02
0.82 0.780 28.00 18.81
0.85 0.811 29.00 19.56
0.88 0.841 30.00 20.27
sA131110009caks1Wg5 plinted: 1GMM Z14 PM
Page 10 of 13
The Preserve at Jordan L ake - E D D Pond #P5
0.91 0.868 31.00 20.93
0.94 0.893 32.00 21.53
0.97 0.916 33.00 22.08
1.00 0.936 34.00 22.57
1.03 0.953 35.00 22.99
1.06 0.968 36.00 23.35
1.09 0.980 37.00 23.64
1.12 0.990 38.00 23.87
1.15 0.996 39.00 24.02
1.18 0.999 40.00 24.10
1.21 1.000 41.00 24.11
1.24 0.997 42.00 24.05
1.27 0.992 43.00 23.91
1.30 0.983 44.00 23.71
1.32 0.972 45.00 23.43
1.35 0.957 46.00 23.09
1.38 0.940 47.00 22.68
1.41 0.921 48.00 22.21
1.44 0.899 49.00 21.67
1.47 0.874 50.00 21.08
1.50 0.849 51.00 20.46
1.53 0.822 52.00 19.82
1.56 0.796 53.00 19.19
1.59 0.771 54.00 18.59
1.62 0.747 55.00 18.00
1.65 0.723 56.00 17.44
1.68 0.700 57.00 16.89
1.71 0.678 58.00 16.36
1.74 0.657 59.00 15.84
1.77 0.636 60.00 15.34
1.80 0.616 61.00 14.86
1.83 0.597 62.00 14.39
1.85 0.578 63.00 13.94
1.88 0.560 64.00 13.50
1.91 0.542 65.00 13.07
1.94 0.525 66.00 12.66
1.97 0.509 67.00 12.26
2.00 0.493 68.00 11.88
2.03 0.477 69.00 11.50
2.06 0.462 70.00 11.14
2.09 0.447 71.00 10.79
2.12 0.433 72.00 10.45
2.15 0.420 73.00 10.12
2.18 0.407 74.00 9.80
2.21 0.394 75.00 9.49
2.24 0.381 76.00 9.19
2.27 0.369 77.00 8.91
2.30 0.358 78.00 8.62
2.33 0.346 79.00 8.35
2.36 0.335 80.00 8.09
2.38 0.325 81.00 7.84
2.41 0.315 82.00 7.59
2.44 0.305 83.00 7.35
2.47 0.295 84.00 7.12
s:%l311%000Zcaks%VVgS Pied IOMM 214 PM Page 11 of 13
The Pre serve at Jordan L ake - liPond '
Storm Rou ting 00-vr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(mot) (cfs) (cf) im i?fsZ (cfs) (cfs) iSES1 (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.14 2 0.03 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.32 9 0.06 0.0 0.0 0.1 0.1 0.0 0.1
4.00 0.57 25 0.12 0.0 0.0 0.2 0.1 0.0 0.1
5.00 0.89 55 0.20 0.0 0.0 0.3 0.1 0.0 0.1
6.00 1.27 103 0.29 0.0 0.0 0.6 0.1 0.0 0.1
7.00 1.72 172 0.40 0.0 0.0 1.0 0.1 0.0 0.1
8.00 2.23 268 0.52 0.0 0.0 1.5 0.2 0.0 0.2
9.00 2.80 393 0.66 0.0 0.0 2.1 0.2 0.0 0.2
10.00 3.43 551 0.81 0.0 0.0 2.9 0.2 0.0 0.2
11.00 4.11 745 0.98 0.0 0.0 3.9 0.2 0.0 0.2
12.00 4.83 979 1.15 0.0 0.0 5.0 0.2 0.0 0.2
13.00 5.60 1255 1.35 0.0 0.0 6.3 0.2 0.0 0.2
14.00 6.40 1576 1.55 0.0 0.0 7.6 0.3 0.0 0.3
15.00 7.24 1945 1.76 0.0 0.0 8.6 0.3 0.0 0.3
16.00 8.11 2362 1.99 0.0 0.0 9.5 0.3 0.0 0.3
17.00 9.00 2831 2.22 0.0 0.0 10.3 0.3 0.0 0.3
18.00 9.91 3353 2.46 0.0 0.0 11.1 0.3 0.0 0.3
19.00 10.84 3927 2.71 0.0 0.0 11.9 0.3 0.0 0.3
20.00 11.77 4557 2.97 0.0 0.0 12.7 0.4 0.0 0.4
21.00 12.70 5241 3.24 0.0 0.0 13.4 0.4 0.0 0.4
22.00 13.63 5980 3.52 0.0 0.0 14.2 0.4 0.0 0.4
23.00 14.54 6774 3.80 0.0 0.0 14.9 0.4 0.0 0.4
24.00 15.45 7622 4.08 0.6 44.2 15.5 0.4 0.0 1.0
25.00 16.33 8486 4.36 5.7 92.8 16.2 0.4 0.0 6.2
26.00 17.19 9096 4.55 10.8 114.8 16.6 0.4 0.0 11.3
27.00 18.02 9453 4.66 14.2 125.6 16.8 0.5 0.0 14.6
28.00 18.81 9657 4.72 16.2 131.3 17.0 0.5 0.0 16.6
29.00 19.56 9787 4.76 17.5 134.8 17.0 0.5 0.0 17.5
30.00 20.27 9910 4.80 18.8 138.0 17.1 0.5 0.0 17.6
31.00 20.93 10072 4.85 20.5 142.1 17.2 0.5 0.0 17.7
32.00 21.53 10266 4.90 22.7 146.9 17.3 0.5 0.0 17.8
33.00 22.08 10489 4.97 25.2 152.1 17.5 0.5 0.0 17.9
34.00 22.57 10737 5.04 28.0 157.6 17.6 0.5 0.2 18.3
35.00 22.99 10991 5.11 31.0 163.1 17.8 0.5 1.1 19.4
36.00 23.35 11207 5.17 33.6 167.5 17.9 0.5 2.2 20.6
37.00 23.64 11374 5.22 35.7 170.9 18.0 0.5 3.1 21.6
38.00 23.87 11495 5.26 37.2 173.2 18.1 0.5 3.9 22.4
39.00 24.02 11581 5.28 38.3 174.9 18.1 0.5 4.5 23.1
40.00 24.10 11639 5.30 39.0 176.0 18.1 0.5 4.8 23.5
41.00 24.11 11676 5.31 39.5 176.7 18.2 0.5 5.1 23.8
42.00 24.05 11697 531 39.7 177.1 18.2 0.5 5.3 23.9
43.00 23.91 11705 5.32 39.8 177.3 18.2 0.5 5.3 24.0
44.00 23.71 11701 5.31 39.8 177.2 18.2 0.5 5.3 23.9
45.00 23.43 11687 5.31 39.6 176.9 18.2 0.5 5.2 23.8
46.00 23.09 11662 5.30 39.3 176.4 18.2 0.5 5.0 23.7
47.00 22.68 11628 5.29 38.9 175.8 18.1 0.5 4.8 23.4
48.00 22.21 11585 5.28 38.3 175.0 18.1 0.5 4.5 23.1
49.00' 21.67 11533 5.27 37.6 174.0 18.1 0.5 4.1 22.7
50.00 21.08 11471 5.25 36.9 172.8 18.0 0.5 3.7 22.3
51.00 20.46 11399 5.23 36.0 171.4 18.0 0.5 3.3 21.8
52.00 19.82 11320 5.21 35.0 169.8 18.0 0.5 2.8 21.3
53.00 19.19 11233 5.18 33.9 168.1 17.9 0.5 23 20.7
54.00 18.59 11141 5.16 32.8 166.2 17.9 0.5 1.9 20.2
55.00 18.00 11045 5.13 31.7 164.2 17.8 0.5 1.4 19.7
56.00 17.44 10945 5.10 30.5 162.1 17.7 0.5 1.0 19.2
57.00 16.89 10841 5.07 29.2 159.9 17.7 0.5 0.6 18.7
58.00 16.36 10731 5.04 27.9 157.5 17.6 0.5 0.2 18.3
59.00 15.84 10613 5.00 26.6 154.9 17.6 0.5 0.0 18.0
60.00 15.34 10482 4.97 25.1 151.9 17.5 0.5 0.0 17.9
SA16lhA8 ica?%Wqs 14.86 10326 4.92 2aa IM=214&8 17.4 0.5 0.0 0509812 of 13
The Pre serve at Jordan L ake - DD Pond -#P5
62.00 14.39 10147 4.87 21.3 144.0 17.3 0.5 0.0 17.7
63.00 13.94 9947 4.81 19.2 139.0 17.1 0.5 0.0 17.6
64.00 13.50 9727 4.74 16.9 133.2 17.0 0.5 0.0 17.4
65.00 13.07 9495 4.67 14.6 126.8 16.9 0.5 0.0 15.0
66.00 12.66 9378 4.64 13.4 123.4 16.8 0.5 0.0 13.9
67.00 12.26 9304 4.61 12.7 121.2 16.7 0.5 0.0 13.2
68.00 11.88 9249 4.60 12.2 119.5 16.7 0.5 0.0 12.7
69.00 11.50 9202 4.58 11.8 118.1 16.7 0.5 0.0 12.2
70.00 11.14 9159 4.57 11.4 116.7 16.6 0.5 0.0 11.8
71.00 10.79 9118 4.56 11.0 115.4 16.6 0.4 0.0 11.4
72.00 10.45 9078 4.55 10.6 114.2 16.6 0.4 0.0 11.1
73.00 10.12 9040 4.53 10.3 112.9 16.6 0.4 0.0 10.7
74.00 9.80 9003 4.52 10.0 111.7 16.5 0.4 0.0 10.4
75.00 9.49 8966 4.51 9.6 110.5 16.5 0.4 0.0 10.1
76.00 9.19 8930 4.50 9.3 109.3 16.5 0.4 0.0 9.8
77.00 8.91 8895 4.49 9.0 108.1 16.5 0.4 0.0 9.5
78.00 8.62 8861 4.48 8.7 106.9 16.4 0.4 0.0 9.2
79.00 8.35 8828 4.47 8.5 105.7 16.4 0.4 0.0 8.9
80.00 8.09 8795 4.46 8.2 104.6 16.4 0.4 0.0 8.6
81.00 7.84 8763 4.45 7.9 103.4 16.4 0.4 0.0 8.4
82.00 7.59 8732 4.44 7.7 102.3 16.3 0.4 0.0 8.1
83.00 7.35 8701 4.43 7.4 101.2 16.3 0.4 0.0 7.8
84.00 7.12 8671 4.42 7.2 100.1 16.3 0.4 0.0 7.6
sAl31IX0002%calcs%wq5 printed 1019/00 z14 PM Page 13 of 13
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #5

FLOTATION OF RISER

RISER DIMENSIONS
0 feet
2
Inside Dimensions Width = .
0 feet
2
Length = .

i 00
296
OP OF RISER =
ELEV. .
00
292
ELEV. BOT. OF RISER = .
4
00 ft
H = .
0 SF
4
AREA OF RISER = .
bic Feet
16
0 C
VOLUME OF RISER = u
.

18 Inch
DIAMETER OF BARREL = 8 SF
1
AREA OF BARREL = .
00 ft
6
EXPOSED LENGTH = .
6 Cubic Feet
10
VOLUME OF BARREL = .

WEIGHT OF WATER DISPLACED = 1660.02 lb
02 lb
1826
FACTOR OF SAFETY (10%) .

t
F
bi
VOLUME OF CONCRETE ANCHOR = ee
c
20.8 Cu

WEIGHT OF OUTLET STRUCTURE
2'x2'
Inside Dimension
2600 lb
Weight of Concrete

ANIT-FLOTATION WEIGHT REQUIRED= -7741b
t
F
ANIT-FLOTATION VOLUME REQUIRED = ee
-8.8 Cubic

ANTI-FLOTATION PAD REQUIRED
DEPTH= 0.00 ft
00 ft
0
WIDTH = .
00 ft
0
LENGTH= .

0 Cubic Feet
0
VOLUME PROVIDED = .

SO, NO CONCRETE PAD REQUIRED

FES AT PERMANENT WATER QUALITY POND #5
flow Q in cfs : 11.9
slope S in ft/ft :.005
pipe diameter D in ft : 1.5
Manning number n :.012
Flow depth (ft) = 1.50
Outlet velocity (fps) = 6.734
ZONE 2
For a pipe diameter of 1.50 feet and
an outlet velocity of 6.73 feet per second:
The recommended apron length is 9.00 feet.
The maximum stone diameter is 7.30 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 6 B 22
WQ#5 Emergency Spillway
Channel Calculator - Bare Earth
Given Input Data:
Shape ......
Solving for
Flowrate ...
Slope ......
Manning's n
Height .....
Bottom width
Left slope .
Right slope
Computed Results:
Depth ..........
Velocity .......
Flow area ......
Flow perimeter .
Hydraulic radius
Top width ......
Area ...........
Perimeter ......
Percent full ...
Critical Informati
Critical depth ..................
Critical slope ..................
Critical velocity ...............
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ...................
Flow condition ..................
Trapezoidal
Depth of Flow
1.5000 cfs
0.1100 ft/ft
0.0200
12.0000 in
120.0000 in
0.3300 ft/ft
0.3300 ft/ft
0.5635 in
3.1896 fps
0.4703 ft2
121.1867 in
0.5588 in
120.3719 in
10.3300 ft2
145.2730 in
4.6955 a
on
1.0641 in
0.0133 ft/ft
1.6866 fps
0.8893 ft2
122.2411 in
1.0476 in
120.7023 in
0.2051 ft
0.1330 ft
2.5971
Supercritical
Page 1
rI'EMIJURARY LINEN DESIGN
FOR CHANNELS
AELE 8.05Q'
Permissible Shear Stresses
for P,iprap and Temporary
Liners
EROSION AND SEDIMEN IAION CONT^OL
FLANNING. AND DESIGN MANUAL -
NCRIH CARCLINA
= yds
T = Shecr Stress in lb/fit 2
y = Unit Weicht of `Nater, 62.? lb/14-
d = Fiow depth in ft.
s = C:-icnnel Grcdient in ft./.t.
-KhL.ti?r-
PRCJECT
PRCJECT NAi'-IE _
DATE:
BY;
Permissible Unit Shear Stress, Td
Lining Category Lining Type (Ib/ft')
Temporary Woven Pacer Net 0.15
Jute Net 0.45
Fiberglass Roving:
Single 0.30
Double 0.35
Straw with Net 1.45
Curled Wood mat 1.55
S nthetic Mat 2.00
o Stone Size (inc; es)
Gravel Ricrac 1 0.10
2 0.30
Rock, Ricrac 6 2.S0-
9 3.30
12 5.C0
15 6.30
is 7.50
21 3.30
24 10.00
CI\ I E L wQ"S emea &ewe.T
d = 5e;Liw4
.04(o y
LINHNG TYPE REQUIRED:
s = ?'] FrRCM:
T ?Z TO:
C H; I\1 ill E L
C =
s =
CH'N?NEL
d=
s =
T =
CH I?INEL
d =-
s =
T =
HAN N EL
d =
5 =
T =
L.NhNG TYPE REQUIRED:
F C", M:
TO:
LINING TYPE RECUIRED:
F;,OM:
TO:
LINING TYPE REQUIRED:
FROM:
TC:
LINING TYPE REQUIRE:
FROM:
TO:

-APERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #16
# Lots s.f./Lot Total
5 6,500 32,500
Roadways - s.f.
Lots (houses, drives, etc.) 32,500 s.f.
Golf Cart Paths 6,000 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 38,500 s.f.
Total Area = 6.01 ac.
Impervious Area = 0.88 ac.
Impervious Percentage = 14.7%
The storage volume for the 1" storm (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.182
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.09130192 ac.fk
3,977 cf
3,977 c.f. storage required.
4,773 c.f. required including an additional 20% for sediment storage
4,801 c.f. storage provided
torage Provided
Incremental Total
Elev. Area (s f) Volume (c.f.) Volume (c.f.) Depth (ft.)

324 415
1,539 1,539
326 1,124 2
3,262 4,801
328 2,138 4
Drawdown calculation
Orifice required for 2-5 Day Drawdown
4.0 feet of storage so, say 2.0 feet of average head
Using a 3/4" orifice Q2-day= 3,618
Q = 0.02 cfs Q5-day= 9,044
So, a 3/4" Orifice will drawdown pond in 2.65 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
Pre-serve Jordan ED D WQ# +
,The DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
Post-Development Runoff -.10-yr
Drainage Area, (DA) = 6.01 acres
Overland Flow
Elevation of most remote point, (111) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (111) = 361.0 feet
Elevation of point of design, (H2) = 324.0 feet
Length of travel, (L) = 650.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 3.5 minutes
Pipe Flow
Elevation of most remote point, (Hl) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) => 5.0 minutes
Intensity, (I) = 7.22 inches/hr
Area 1 (Impervious) = 0.88 acres
Area 2 (Pervious) = 5.13 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) => 0.31
Peak Release Rate, (Qto) => 13 cfs
Post-Development off
Drainage Area, (DA) = 6.01 acres
Time of Concentration, (To) 5.0 minutes
Intensity, (1) = 8.29 inches/hr
Composite Runoff Coefficient (C) => 0.31
Peak Release Rate, (Qu) => 15 cfs
Post-Development 100-yr
Drainage Area, (DA) = 6.01 acres
Time of Concentration, (Tc) =>
Intensity, (I) =
Composite Runoff Coefficient, (C) =>
Peak Release Rats, (Q100) =>
5.0 minutes
9.67 inches
0.31
18 cfs
sA1311UXXrZca1cs1V40 protect 1of =z18 PM Page l of 14
Pr
The eserve Jordan 1/ i +
,Stage - S torage Func tion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) in (Z) Z est

324 395 -
326 1,104 1,499 1,499 2.00 7.31 0.69 2.02
328.0 2,118 3,222 4,721 4.00 8.46 1.39 3.90
330.0 3,432 5,550 10,271 6.00 9.24 1.79 6.10
Check
Stage Storage
2 1,475
4 4,932
6 9,992
Regression Output:
b 1.74 (X Variable Coeff)
K 441 (ey-"-'P`)
Stage - Storage Equation is of the form: S = (KsXZ)b
Normal Water Surface Elev. _
324.0 feet
Water Surface Elev. (Q10) = 3. X feet
Water Surface Elev. (Q25) = 329.11) feet
Water Surface Elev. (QI00) _ 3-?').-;() feet
;Peimary Spillway
Barrel
Dia. of Barrel = 15 inches
Area of Barrel, (Ab) = 1.23 sf
Pipe Length, (L) = 56.0 feet
Friction Coeff, (Kp) = 0.01980
Inv. of Barrel = 324.00 feet
Riser
Elev. of Riser Crest = 328.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 0.75 0.0031
s:X1311%0002%caka\Wg8 printed 10/81002:18 PM
Page 2 of 14
The Preserve at Jordan Lake EDD WQ# 6
Rectangular.
Length of Riser = 2 feet
Width of Riser = 2 feet
Weir Length = 8 feet 4
Area of Riser = 4 sq.ft.
;,Emergency Spillway
Width of Spillway (Approx) = 10 feet
Weir Coefficient = 3.0
Crest Elevation = 329 feet
DFGVT
s:%1311W0021caIcs\wqe prirtat 10/BM ZIS PM Page 3 of 14
Preserve
,The Jordan E D D

oInflow-HYdrograph 10-yr
Peak Inflow, (Qla) => 13 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff)
Vol= 41,072 cf (vol. of runoff)
Time to Peak, (Tp) 36.62 minutes
(SCS TR-55)
Y-!B Q4e t s
(mm) cfs
0.00 0.000 0 0.00
0.05 0.007 2 0.10
0.11 0.029 4 0.39
0.16 0.065 6 0.87
0.22 0.113 8 1.52
0.27 0.173 10 2.33
0.33 0.242 12 3.26
0.38 0.319 14 4.29
0.44 0.402 16 5.40
0.49 0.487 18 6.54
0.55 0.572 20 7.70
0.60 0.656 22 8.82
0.66 0.734 24 9.88
0.71 0.806 26 10.84
0.76 0.869 28 11.69
0.82 0.921 30 12.39
0.87 0.961 32 12.93
0.93 0.987 34 13.28
0.98 0.999 36 13.44
1.04 0.997 38 13.40
1.09 0.979 40 13.17
1.15 0.948 42 12.74
1.20 0.903 44 12.14
1.26 0.848 46 11.40
1.31 0.790 48 10.62
1.37 0.736 50 9.89
1.42 0.685 52 9.21
1.47 0.638 54 8.58
1.53 0.594 56 7.99
1.58 0.554 58 7.45
= 1.64 0.516 60 6.94
1.69 0.480 62 6.46
1.75 0.448 64 6.02
1.80 0.417 66 5.61
1.86 0.388 68 5.22
1.91 0362 70 4.86
1.97 0.337 72 4.53
2.02 0.314 74 4.22
2.08 0.292 76 3.93
2.13 0.272 78 3.66
2.18 0.254 80 3.41
2.24 0.236 82 3.18
2.29 0.220 84 2.96
2.35 0.205 86 2.76
2.40 0.191 88 2.57
2.46 0.178 90 2.39
2.51 0.166 92 2.23
sAl311woo2%cR1es%wye Pnnted: 1 OMM 2:18 PM Page 4 of 14
Preserve The 1! •
2.57 0.154 94 2.07
2.62 0.144 96 1.93
2.68 0.134 98 1.80
2.73 0.125 100 1.68
2.79 0.116 102 1.56
2.84 0.108 104 1.45
2.89 0.101 106 1.36
2.95 0.094 108 1.26
3.00 0.087 110 1.18
3.06 0.081 112 1.10
3.11 0.076 114 1.02
3.17 0.071 116 0.95
3.22 0.066 118 0.88
3.28 0.061 120 0.82
3.33 0.057 122 0.77
3.39 0.053 124 0.72
3.44 0.050 126 0.67
3.50 0.046 128 0.62
3.55 0.043 130 0.58
3.60 0.040 132 0.54
3.66 0.037 134 0.50
3.71 0.035 136 0.47
3.77 0.032 138 0.44
3.82 0.030 140 0.41
3.88 0.028 142 0.38
3.93 0.026 144 0.35
3.99 0.024 146 0.33
4.04 0.023 148 0.31
4.10 0.021 150 0.28
4.15 0.020 152 0.26
4.21 0.018 154 0.25
4.26 0.017 156 0.23
4.31 0.016 158 0.21
4.37 0.015 160 0.20
4.42 0.014 162 0.19
4.48 0.013 164 0.17
4.53 0.012 166 0.16
4.59 0.011 168 0.15
4.64 0.010 170 0.14
4.70 0.010 172 0.13
4.75 0.009 174 0.12
4.81 0.008 176 0.11
s11311WW2%calcs\Wg6 Phi 10MM 218 PM Page 5 of 14
The ' 11

WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) sZ (cf) M (Cfs) (cfs) (Cfi) (cfs) (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.10 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.39 12 0.13 0.0 0.0 0.1 0.0 0.0 0.0
6.00 0.87 54 0.30 0.0 0.0 0.5 0.1 0.0 0.1
8.00 1.52 151 0.54 0.0 0.0 1.3 0.1 0.0 0.1
10.00 2.33 323 0.84 0.0 0.0 2.6 0.1 0.0 0.1
12.00 3.26 589 1.18 0.0 0.0 4.3 0.1 0.0 0.1
14.00 4.29 965 1.57 0.0 0.0 5.7 0.1 0.0 0.1
16.00 5.40 1462 1.99 0.0 0.0 6.9 0.2 0.0 0.2
18.00 6.54 2090 2.44 0.0 0.0 8.0 0.2 0.0 0.2
20.00 7.70 2853 2.92 0.0 0.0 9.0 0.2 0.0 0.2
22.00 8.82 3752 3.42 0.0 0.0 9.9 0.2 0.0 0.2
24.00 9.88 4784 3.93 0.0 0.0 10.7 0.2 0.0 0.2
26.00 10.84 5941 4.45 8.0 103.8 11.6 0.3 0.0 8.3
28.00 11.69 6252 4.58 11.8 118.1 11.8 0.3 0.0 12.0
30.00 12.39 6213 4.57 11.3 116.4 11.7 0.3 0.0 11.5
32.00 12.93 6316 4.61 12.6 120.8 11.8 0.3 0.0 12.1
34.00 13.28 6421 4.65 14.0 125.0 11.9 0.3 0.0 12.1
36.00 13.44 6560 4.71 15.9 130.4 11.9 0.3 0.0 12.2
38.00 13.40 6709 4.77 17.9 135.9 12.0 0.3 0.0 12.3
40.00 13.17 6841 4.83 19.9 140.6- 12.1 0.3 0.0 12.4
42.00 12.74 6937 4.87 21.3 143.8 12.2 0.3 0.0 12.4
44.00 12.14 6975 4.88 21.8 145.1 12.2 0.3 0.0 12.5
46.00 11.40 6938 4.87 21.3 143.8 12.2 0.3 0.0 12.4
48.00 10.62 6814 4.82 19.5 139.6 12.1 0.3 0.0 12.4
50.00 9.89 6606 4.73 16.5 132.1 12.0 0.3 0.0 12.2
52.00 9.21 6325 4.61 12.7 121.2 11.8 0.3 0.0 12.1
54.00 8.58 5984 4.47 8.5 105.9 11.6 0.3 0.0 8.8
56.00 7.99 5964 4.46 8.3 104.9 11.6 0.3 0.0 8.5
58.00 7.45 5901 4.43 7.6 101.8 11.5 0.2 0.0 7.8
60.00 6.94 5858 4.42 7.1 99.7 11.5 0.2 0.0 7.3
62.00 6.46 5812 4.40 6.6 97.2 11.5 0.2 0.0 6.8
64.00 6.02 5769 4.38 6.1 94.9 11.4 0.2 0.0 6.4
66.00 5.61 5728 4.36 5.7 92.6 11.4 0.2 0.0 5.9
68.00 5.22 5689 4.34 5.3 90.4 11.4 0.2 0.0 5.5
70.00 4.86 5652 4.33 4.9 88.2 11.4 0.2 0.0 5.2
72.00 4.53 5617 4.31 4.6 86.1 11.3 0.2 0.0 4.8
74.00 4.22 5584 4.30 4.2 84.0 11.3 0.2 0.0 4.5
76.00 3.93 5551 4.28 3.9 82.0 11.3 0.2 0.0 4.2
78.09 3.66 5521 4.27 3.7 80.0 11.3 0.2 0.0 3.9
80.00 3.41 5492 4.25 3.4 78.0 11.3 0.2 0.0 3.6
82.00 3.18 5464 4.24 3.2 76.1 11.2 0.2 0.0 3.4
84.00 2.96 5438 4.23 2.9 74.2 11.2 0.2 0.0 3.2
86.00 2.76 5412 4.22 2.7 72.4 11.2 0.2 0.0 3.0
88.00 2.57 5388 4.21 2.5 70.6 11.2 0.2 0.0 2.8
90.00 2.39 5365 4.20 2.3 68.8 11.2 0.2 0.0 2.6
92.00 2.23 5343 4.19 2.2 67.1 11.2 0.2 0.0 2.4
94.00 2.07 5322 4.18 2.0 65.4 11.1 0.2 0.0 2.2
96.00 1.93 5302 4.17 1.8 63.7 11.1 0.2 0.0 2.1
98.00 1.80 5283 4.16 1.7 62.1 11.1 0.2 0.0 2.0
100.00 1.68 5265 4.15 1.6 60.5 11.1 0.2 0.0 1.8
102.00 1.56 5248 4.15 1.5 58.9 11.1 0.2 0.0 1.7
104.00 1.45 5231 4.14 1.3 57.3 11.1 0.2 0.0 1.6
106.00 1.36 5215 4.13 1.2 55.8 11.1 0.2 0.0 1.5
108.00 1.26 5200 4.12 1.1 54.3 11.1 0.2 0.0 1.4
110.00 1.18 5185 4.12 1.1 52.8 11.0 0.2 0.0 1.3
112.00 1.10 5171 4.11 1.0 51.3 11.0 0.2 0.0 1.2
114.00 1.02 5158 4.10 0.9 49.9 11.0 0.2 0.0 1.1
116.00 0.95 5145 4.10 0.8 48.4 11.0 0.2 0.0 1.1
118.00 0.88 5132 4.09 0.7 47.0 11.0 0.2 0.0 1.0
120.00 0.82 5120 4.09 0.7 45.6 11.0 0.2 0.0 0.9
g:3za2 ?wys 0.77 5109 4.08 O,Anted: 10ffi= 2MJ5A 11.0 0.2 0.0 F&& 6 of 14
124.00 0.72 5098 4.08 0.6 42.9 11.0 0.2 0.0 0.8
126.00 0.67 5088 4.07 0.5 41.5 11.0 0.2 0.0 0.8
128.00 0.62 5078 4.07 0.5 40.1 11.0 0.2 0.0 0.7
130.00 0.58 5068 4.06 0.4 38.8 11.0 0.2 0.0 0.7
132.00 0.54 5058 4.06 0.4 37.4 10.9 0.2 0.0 0.6
134.00 0.50 5049 4.05 0.3 36.1 10.9 0.2 0.0 0.6
136.00 0.47 5041 4.05 0.3 34.7 10.9 0.2 0.0 0.5
138.00 0.44 5032 4.05 0.3 33.3 10.9 0.2 0.0 0.5
140.00 0.41 5024 4.04 0.2 32.0 10.9 0.2 0.0 0.5
s91311WM21raleslwya printed 10!9100 2:1a PM Page 7 of 14
Pre
Jhe serve /1
142.00 0.38 5016 4.04 0.2 30.5 10.9 0.2 0.0 0.4
144.00 0.35 5008 4.04 0.2 29.1 10.9 0.2 0.0 0.4
146.00 0.33 5001 4.03 0.2 27.6 10.9 02 0.0 0.4
148.00 0.31 4993 4.03 0.1 26.1 10.9 0.2 0.0 0.4
150.00 0.28 4986 4.03 0.1 24.5 10.9 0.2 0.0 0.3
152.00 0.26 4979 4.02 0.1 22.9 10.9 0.2 0.0 0.3
154.00 0.25 4972 4.02 0.1 21.1 10.9 0.2 0.0 0.3
156.00 0.23 4965 4.02 0.1 19.2 10.9 0.2 0.0 0.3
158.00 0.21 4958 4.01 0.0 17.0 10.9 0.2 0.0 0.3
160.00 0.20 4951 4.01 0.0 14.5 10.9 0.2 0.0 0.3
162.00 0.19 4944 4.01 0.0 11.5 10.9 0.2 0.0 0.2
164.00 0.17 4936 4.00 0.0 6.9 10.9 0.2 0.0 0.2
166.00 0.16 4928 4.00 0.0 0.0 10.9 0.2 0.0 0.2
168.00 0.15 4919 3.99 0.0 0.0 10.8 0.2 0.0 0.2
170.00 0.14 4909 3.99 0.0 0.0 10.8 0.2 0.0 0.2
172.00 0.13 4897 3.98 0.0 0.0 10.8 0.2 0.0 0.2
174.00 0.12 4884 3.98 0.0 0.0 10.8 0.2 0.0 0.2
176.00 0.11 4870 3.97 0.0 0.0 10.8 0.2 0.0 0.2
Peak Inflow, (Qso) =
15 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 54,050 cf (vol. of runoff)
Time to Peak, (Tp) 42.01 minutes
(SCS TR-55)
>IR Wop t Q
(rdn) WS)
0.00 0.000 0.00 0.00
0.05 0.006 2.00 0.09
0.10 0.022 4.00 0.34
0.14 0.050 6.00 0.76
0.19 0.087 8.00 1.34
0.24 0.133 10.00 2.06
0.29 0.188 12.00 2.90
0.33 0.250 14.00 3.86
0.38 0.317 16.00 4.89
0.43 0.389 18.00 6.00
0.48 0.463 20.00 7.14
0.52 0.537 22.00 8.29
0.57 0.611 24.00 9.43
0.62 0.683 26.00 10.53
0.67 0.750 28.00 11.57
0.71 0.812 30.00 12.52
0.76 0.866 32.00 13.37
0.81 0.913 34.00 14.09
0.86 0.950 36.00 14.66
0.90 0.978 38.00 15.08
0.95 0.994 40.00 15.34
1.00 1.000 42.00 15.43
1.05 0.994 44.00 15.34
1.10 0.978 46.00 15.09
1.14 0.951 48.00 14.67
1.19 0.913 50.00 14.09
1.24 0.867 52.00 13.37
1.29 0.816 54.00 12.59
1.33 0.767 56.00 11.83
1.38 0.721 58.00 11.12
1.43 0.678 60.00 10.46
1.48 0.637 62.00 9.83
1.52 0.599 64.00 9.24
.A1311 W W2%-I-%WgS ptt d 1018100 218 PM
Page 8 of 14
Preserve The 11 i e
1.57 0.563 66.00 8.68
1.62 0.529 68.00 8.16
1.67 0.497 70.00 7.67
1.71 0.468 72.00 7.21
1.76 0.439 74.00 6.78
1.81 0.413 76.00 6.37
1.86 0.388 78.00 5.99
1.90 0.365 80.00 5.63
1.95 0.343 82.00 5.29
2.00 0.322 84.00 4.98
2.05 0.303 86.00 4.68
2.09 0.285 88.00 4.40
2.14 0.268 90.00 4.13
2.19 0.252 92.00 3.88
2.24 0.237 94.00 3.65
2.29 0.222 96.00 3.43
2.33 0.209 98.00 3.23
2.38 0.197 100.00 3.03
2.43 0.185 102.00 2.85
2.48 0.174 104.00 2.68
2.52 0.163 106.00 2.52
2.57 0.153 108.00 2.37
2.62 0.144 110.00 2.23
2.67 0.136 112.00 2.09
2.71 0.127 114.00 1.97
2.76 0.120 116.00 1.85
2.81 0.113 118.00 1.74
2.86 0.106 120.00 1.63
2.90 0.099 122.00 1.53
2.95 0.094 124.00 1.44
3.00 0.088 126.00 1.36
3.05 0.083 128.00 1.27
3.09 0.078 130.00 1.20
3.14 0.073 132.00 1.13
3.19 0.069 134.00 1.06
3.24 0.065 136.00 1.00
3.29 0.061 138.00 0.94
3.33 0.057 140.00 0.88
3.38 0.054 142.00 0.83
3.43 0.050 144.00 0.78
3.48 0.047 146.00 0.73
3.52 0.044 148.00 0.69
3.57 0.042 150.00 0.65
3.62 0.039 152.00 0.61
3.67 0.037 154.00 0.57
3.71 0.035 156.00 0.54
3.76 0.033 158.00 0.50
3.81 0.031 160.00 0.47
n
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW

0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.09 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.34 10 0.12 0.0 0.0 0.1 0.0 0.0 0.0
6.00 0.76 47 0.28 0.0 0.0 0.5 0.1 0.0 0.1
8.00 1.34 131 0.50 0.0 0.0 1.2 0.1 0.0 0.1
10.00 2.06 282 0.77 0.0 0.0 23 0.1 0.0 0.1
12.00 2.90 516 1.09 0.0 0.0 3.8 0.1 0.0 0.1
14.00 3.86 850 1.46 0.0 0.0 5.4 0.1 0.0 0.1
16.00 4.89 1295 1.86 0.0 0.0 6.6 0.2 0.0 0.2
18.00 6.00 1863 2.29 0.0 0.0 7.6 0.2 0.0 0.2
20.00 7.14 2561 2.75 0.0 0.0 8.6 0.2 0.0 0.2
S:%Q?il Dz, wcs wgs 8.29 3394 3.23 0Adect i ae= A4m 9.5 0.2 0.0 F0O 9 of 14
The ' 11
24.00 9.43 4363 3.73 0.0 0.0 10.4 0.2 0.0 0.2
26.00 10.53 5467 4.24 3.2 76.3 11.2 0.2 0.0 3.4
28.00 11.57 6320 4.61 12.6 120.9 11.8 0.3 0.0 12.1
30.00 12.52 6262 4.59 11.9 118.5 11.8 0.3 0.0 12.0
32.00 13.37 6322 4.61 12.7 121.0 11.8 0.3 0.0 12.1
34.00 14.09 6480 4.68 14.8 127.3 11.9 0.3 0.0 12.2
36.00 14.66 6712 4.77 18.0 136.0 12.0 0.3 0.0 12.3
38.00 15.08 6996 4.89 22.1 145.8 12.2 0.3 0.0 12.5
40.00 15.34 7310 5.01 27.0 155.7 12.4 0.3 0.1 12.7
42.00 15.43 7628 5.14 32.1 164.9 12.6 0.3 1.5 14.4
44.00 15.34 7755 5.19 34.2 168.4 12.6 0.3 2.4 15.3
46.00 15.09 7757 5.19 34.2 168.5 12.6 0.3 2.4 15.3
48.00 14.67 7727 5.18 33.7 167.6 12.6 0.3 2.2 15.1
50.00 14.09 7675 5.16 32.8 166.2 12.6 0.3 1.9 14.7
52.00 13.37 7601 5.13 31.6 164.2 12.5 0.3 1.4 14.2
54.00 12.59 7504 5.09 30.1 161.4 12.5 0.3 0.8 13.6
56.00 11.83 7387 5.04 28.2 158.0 12.4 0.3 03 13.0
58.00 11.12 7251 4.99 26.0 153.8 12.3 0.3 0.0 12.6
60.00 10.46 7072 4.92 23.3 148.2 12.2 0.3 0.0 12.5
62.00 9.83 6826 4.82 19.6 140.0 12.1 0.3 0.0 12.4
64.00 9.24 6522 4.70 15.3 129.0 11.9 0.3 0.0 12.2
66.00 8.68 6169 4.55 10.7 114.5 11.7 0.3 0.0 11.0
68.00 8.16 5893 4.43 7.5 101.5 11.5 0.2 0.0 7.7
70.00 7.67 5947 4.45 8.1 104.1 11.6 0.3 0.0 8.3
72.00 7.21 5869 4.42 7.2 100.2 11.5 0.2 0.0 7.4
74.00 6.78 5841 4.41 6.9 98.8 11.5 0.2 0.0 7.1
76.00 6.37 5798 4.39 6.4 96.5 11.5 0.2 0.0 6.7
78.00 5.99 5763 4.37 6.0 94.5 11.4 0.2 0.0 6.3
80.00 5.63 5727 4.36 5.7 92.5 11.4 0.2 0.0 5.9
82.00 5.29 5693 4.34 5.3 90.6 11.4 0.2 0.0 5.6
84.00 4.98 5660 4.33 5.0 88.7 11.4 0.2 0.0 5.2
86.00 4.68 5629 4.32 4.7 86.8 11.4 0.2 0.0 4.9
88.00 4.40 5599 4.30 4.4 85.0 11.3 0.2 0.0 4.6
90.00 4.13 5570 4.29 4.1 83.2 11.3 0.2 0.0 4.4
92.00 3.88 5543 4.28 3.9 81.4 11.3 0.2 0.0 4.1
94.00 3.65 5516 4.27 3.6 79.7 11.3 0.2 0.0 3.9
96.00 3.43 5491 4.25 3.4 78.0 11.3 0.2 0.0 3.6
98.00 3.23 5467 4.24 3.2 76.3 11.2 0.2 0.0 3.4
100.00 3.03 5443 4.23 3.0 74.7 11.2 0.2 0.0 3.2
102.00 2.85 5421 4.22 2.8 73.0 11.2 0.2 0.0 3.0
104.00 2.68 5400 4.21 2.6 71.4 11.2 0.2 0.0 2.9
106.00 2.52 5379 4.20 2.4 69.9 11.2 0.2 0.0 2.7
108.00 2.37 5359 4.20 2.3 68.3 11.2 0.2 0.0 2.5
110.00 2.23 5340 4.19 2.1 66.8 11.2 0.2 0.0 2.4
112.00 2.09 5322 4.18 2.0 65.3 11.1 02 0.0 2.2
114.00 1.97 5304 4.17 1.9 63.9 11.1 0.2 0.0 2.1
116.00 1.85 5288 4.16 1.7 62.4 11.1 0.2 0.0 2.0
118.00 1.74 5271 4.16 1.6 61.0 11.1 0.2 0.0 1.9
120.00 1.63 5256 4.15 1.5 59.6 11.1 0.2 0.0 1.8
122.00 1.53 5241 4.14 1.4 58.3 11.1 0.2 0.0 1.7
124.00 1.44 5226 4.14 1.3 56.9 11.1 0.2 0.0 1.6
126.00 1.36 5213 4.13 1.2 55.6 11.1 0.2 0.0 1.5
128.00 1.27 5199 4.12 1.1 54.2 11.1 0.2 0.0 1.4
130.00 1.20 5186 4.12 1.1 52.9 11.0 0.2 0.0 1.3
132.00 1.13 5174 4.11 1.0 51.7 11.0 0.2 0.0 1.2
134.00 1.06 5162 4.11 0.9 50.4 11.0 0.2 0.0 1.2
136.00 1.00 5151 4.10 0.8 49.1 11.0 0.2 0.0 1.1
138.00 0.94 5140 4.10 0.8 47.9 11.0 0.2 0.0 1.0
140.00 0.88 5129 4.09 0.7 46.6 11.0 0.2 0.0 1.0
142.00 0.83 5119 4.09 0.7 45.4 11.0 0.2 0.0 0.9
144.00 0.78 5109 4.08 0.6 44.2 11.0 0.2 0.0 0.9
146.00 0.73 5099 4.08 0.6 43.0 11.0 0.2 0.0 0.8
148.00 0.69 5090 4.07 0.5 41.8 11.0 0.2 0.0 0.8
150.00 0.65 5081 4.07 0.5 40.6 11.0 0.2 0.0 0.7
152.00 0.61 5072 4.07 0.4 39.4 11.0 0.2 0.0 0.7
154.00 0.57 5064 4.06 0.4 38.2 11.0 0.2 0.0 0.6
g. ? `w? 0.54 5056 4.06 O.p4 ? ? Z311.% 10.9 0.2 0.0 PA010 of 14
158.00 0.50 5048 4.05 0.3 35.8 10.9 0.2 0.0 0.6
160.00 0.47 5040 4.05 0.3 34.6 10.9 0.2 0.0 0.5
Peak Inflow. (Q100) = 18 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S=
Q*= 3.46 in. (depth of runoff
Vol= 75,424 cf (vol. of runoff
Time to Peak, (Tp) => 50.24 minutes
(SCS TR-55)
ymi ss>e i s
(cf1s)
0.00 0.000 0.00 0.00
0.05 0.004 2.00 0.07
0.10 0.016 4.00 0.28
0.14 0.035 6.00 0.63
0.19 0.061 8.00 1.10
0.24 0.095 10.00 1.70
0.29 0.134 12.00 2.42
0.33 0.180 14.00 3.23
0.38 0.230 16.00 4.14
0.43 0.285 18.00 5.12
0.48 0.343 20.00 6.17
0.52 0.403 22.00 7.25
0.57 0.465 24.00 8.37
0.62 0.527 26.00 9.49
0.67 0.589 28.00 10.61
0.71 0.650 30.00 11.70
0.76 0.708 32.00 12.75
0.81 0.764 34.00 13.74
0.86 0.814 36.00 14.66
0.90 0.860 38.00 15.49
0.95 0.901 40.00 16.22
1.00 0.935 42.00 16.83
1.05 0.962 44.00 17.32
1.10 0.982 46.00 17.68
1.14 0.995 48.00 17.91
1.19 1.000 50.00 18.00
1.24 0.997 52.00 17.95
1.29 0.986 54.00 17.75
1.33 0.968 56.00 17.42
1.38 0.942 58.00 16.96
1.43 0.910 60.00 16.38
1.48 0.871 62.00 15.68
1.52 0.829 64.00 14.91
1.57 0.787 66.00 14.16
1.62 0.747 68.00 13.45
1.67 0.709 70.00 12.77
1.71 0.674 72.00 12.13
1.76 0.640 74.00 11.51
1.81 0.607 76.00 10.93
1.86 0.577 78.00 10.38
1.90 0.548 80.00 9.86
1.95 0.520 82.00 9.36
2.00 0.494 84.00 8.89
2.05 0.469 86.00 8.44
2.09 0.445 88.00 8.02
2.14 0.423 90.00 7.61
2.19 0.402 92.00 7.23
2.24 0.381 94.00 6.86
sA1 31 110 0 0 21caLo %Wq8 panted 10/6=2:18PM
2.66 in.
Pagel 1 of 14
Preserve The 11 i
2.29 0.362 96.00 6.52
2.33 0.344 98.00 6.19
2.38 0.326 100.00 5.88
2.43 0.310 102.00 5.58
2.48 0.294 104.00 5.30
2.52 0.280 106.00 5.03
2.57 0.265 108.00 4.78
2.62 0.252 110.00 4.54
2.67 0.239 112.00 4.31
2.71 0.227 114.00 4.09
2.76 0.216 116.00 3.88
2.81 0.205 118.00 3.69
2.86 0.195 120.00 3.50
2.90 0.185 122.00 3.33
2.95 0.175 124.00 3.16
3.00 0.167 126.00 3.00
3.05 0.158 128.00 2.85
3.09 0.150 130.00 2.70
3.14 0.143 132.00 2.57
3.19 0.135 134.00 2.44
3.24 0.129 136.00 2.32
3.29 0.122 138.00 2.20
3.33 0.116 140.00 2.09
3.38 0.110 142.00 1.98
3.43 0.105 144.00 1.88
3.48 0.099 146.00 1.79
3.52 0.094 148.00 1.70
3.57 0.090 150.00 1.61
3.62 0.085 152.00 1.53
3.67 0.081 154.00 1.45
3.71 0.077 156.00 1.38
3.76 0.073 158.00 1.31
3.81 0.069 160.00 1.24
3.86 0.066 162.00 1.18
3.90 0.062 164.00 1.12
3.95 0.059 166.00 1.07
4.00 0.056 168.00 1.01
s:%l31IVXX 2%caksXWgB pittect 10/6=2:18 PM Page 12 of 14
reserve at .Jordan Lake - EDD WO# 6
IStorm •o r
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW

0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.07 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.28 8 0.10 0.0 0.0 0.1 0.0 0.0 0.0
6.00 0.63 37 0.24 0.0 0.0 0.4 0.1 0.0 0.1
8.00 1.10 106 0.44 0.0 0.0 1.0 0.1 0.0 0.1
10.00 1.70 228 0.69 0.0 0.0 1.9 0.1 0.0 0.1
12.00 2.42 421 0.97 0.0 0.0 3.2 0.1 0.0 0.1
14.00 3.23 697 1.30 0.0 0.0 4.9 0.1 0.0 0.1
16.00 4.14 1069 1.66 0.0 0.0 6.0 0.2 0.0 0.2
18.00 5.12 1547 2.06 0.0 0.0 7.1 0.2 0.0 0.2
20.00 6.17 2142 2.48 0.0 0.0 8.0 0.2 0.0 0.2
22.00 7.25 2859 2.92 0.0 0.0 9.0 0.2 0.0 0.2
24.00 8.37 3705 3.39 0.0 0.0 9.8 0.2 0.0 0.2
26.00 9.49 4683 3.88 0.0 0.0 10.7 0.2 0.0 0.2
28.00 10.61 5795 4.39 6.4 96.3 11.5 0.2 0.0 6.6
30.00 11.70 6272 4.59 12.0 118.9 11.8 0.3 0.0 12.0
32.00 12.75 6234 4.58 11.5 117.3 11.7 0.3 0.0 11.8
34.00 13.74 6349 4.62 13.0 122.1 11.8 0.3 0.0 12.1
36.00 14.66 6549 4.71 15.7 130.0 11.9 0.3 0.0 12.2
38.00 15.49 6845 4.83 19.9 140.7 12.1 0.3 0.0 12.4
40.00 16.22 7218 4.98 25.5 152.9 12.3 0.3 0.0 12.6
42.00 16.83 7653 5.15 32.5 165.6 12.6 0.3 1.7 14.5
44.00 17.32 7927 5.25 37.0 173.0 12.7 0.3 3.8 16.8
46.00 17.68 7989 5.28 38.1 174.6 12.7 0.3 4.4 17.4
48.00 17.91 8025 5.29 38.7 175.6 12.8 0.3 4.7 17.7
50.00 18.00 8047 5.30 39.1 176.1 12.8 0.3 4.9 17.9
52.00 17.95 8054 5.30 39.2 176.3 12.8 0.3 5.0 18.0
54.00 17.75 8046 5.30 39.1 176.1 12.8 0.3 4.9 17.9
56.00 17.42 8024 5.29 38.7 175.5 12.8 0.3 4.7 17.7
58.00 16.96 7988 5.28 38.1 174.6 12.7 0.3 4.4 17.4
60.00 16.38 7939 5.26 37.2 173.3 12.7 0.3 3.9 16.9
62.00 15.68 7874 5.23 36.1 171.6 12.7 0.3 3.4 16.3
64.00 14.91 7796 5.20 34.8 169.5 12.6 0.3 2.7 15.7
66.00 14.16 7707 5.17 33.4 167.1 12.6 0.3 2.1 14.9
68.00 13.45 7613 5.13 31.8 164.5 12.5 0.3 1.4 14.3
70.00 12.77 7515 5.09 30.2 161.7 12.5 0.3 0.9 13.6
72.00 12.13 7412 5.05 28.6 158.7 12.4 0.3 0.4 13.1
74.00 11.51 7297 5.01 26.8 155.3 12.4 0.3 0.0 12.7
76.00 10.93 7159 4.95 24.6 151.0 12.3 0.3 0.0 12.6
78.00. 10.38 6964 4.88 21.7 144.7 12.2 0.3 0.0 12.4
80.00 9.86 6716 4.78 18.1 136.2 12.0 0.3 0.0 12.3
82.00 9.36 6424 4.66 14.0 125.1 11.9 0.3 0.0 12.1
84.00 8.89 6093 4.52 9.8 111.1 11.7 0.3 0.0 10.0
86.00 8.44 5954 4.46 8.2 104.5 11.6 0.3 0.0 8.4
88.00 8.02 5958 4.46 8.2 104.7 11.6 0.3 0.0 8.5
90.00 7.61 5906 4.44 7.6 102.1 11.5 0.2 0.0 7.9
92.00 7.23 5877 4.42 7.3 100.6 11.5 0.2 0.0 7.5
94.00 6.86 5841 4.41 6.9 98.7 11.5 0.2 0.0 7.1
96.00 6.52 5809 4.39 6.5 97.0 11.5 0.2 0.0 6.8
98.00 6.19 5777 4.38 6.2 95.3 11.5 0.2 0.0 6.4
100.00 5.88 5747 4.37 5.9 93.6 11.4 0.2 0.0 6.1
102.00 5.58 5717 4.35 5.6 92.0 11.4 0.2 0.0 5.8
104.00 5.30 5689 4.34 5.3 90.4 11.4 0.2 0.0 5.5
106.00 5.03 5662 4.33 5.0 88.8 11.4 0.2 0.0 5.3
108.00 4.78 5635 4.32 4.7 87.2 11.4 0.2 0.0 5.0
110.00 4.54 5610 4.31 4.5 85.7 11.3 0.2 0.0 4.7
112.00 4.31 5585 4.30 4.3 84.1 11.3 0.2 0.0 4.5
114.00 4.09 5562 4.29 4.0 82.6 11.3 0.2 0.0 4.3
116.00 3.88 5539 4.28 3.8 81.2 11.3 0.2 0.0 4.1
118.00 3.69 5517 4.27 3.6 79.7 11.3 0.2 0.0 3.9
120.00 3.50 5495 4.26 3.4 78.3 11.3 0.2 0.0 3.7
.:S3i2 k.%wo 3.33 5475 4.25 3 2rtea 1 aww z7i6.Q9e 11.2 0.2 0.0 PaW 13 of 14
124.00 3.16 5455 4.24 3.1 75.5 11.2 0.2 0.0 3.3
126.00 3.00 5436 4.23 2.9 74.1 11.2 0.2 0.0 3.2
128.00 2.85 5417 4.22 2.8 72.8 11.2 0.2 0.0 3.0
130.00 2.70 5399 4.21 2.6 71.4 11.2 0.2 0.0 2.8
132.00 2.57 5382 4.21 2.5 70.1 11.2 0.2 0.0 2.7
134.00 2.44 5365 4.20 2.3 68.8 11.2 0.2 0.0 2.6
136.00 2.32 5349 4.19 2.2 67.5 11.2 0.2 0.0 2.4
138.00 2.20 5333 4.18 2.1 66.3 11.1 0.2 0.0 2.3
140.00 2.09 5318 4.18 2.0 65.0 11.1 0.2 0.0 2.2
142.00 1.98 5304 4.17 1.9 63.8 11.1 0.2 0.0 2.1
144.00 1.88 5289 4.16 1.8 62.6 11.1 0.2 0.0 2.0
146.00 1.79 5276 4.16 1.7 61.4 11.1 0.2 0.0 1.9
148.00 1.70 5262 4.15 1.6 60.2 11.1 0.2 0.0 1.8
150.00 1.61 5250 4.15 1.5 59.1 11.1 0.2 0.0 1.7
152.00 1.53 5237 4.14 1.4 57.9 11.1 0.2 0.0 1.6
154.00 1.45 5225 4.13 1.3 56.8 11.1 0.2 0.0 1.6
156.00 1.38 5214 4.13 1.2 55.7 11.1 0.2 0.0 1.5
158.00 1.31 5202 4.12 1.2 54.5 11.1 0.2 0.0 1.4
160.00 1.24 5191 4.12 1.1 53.4 11.0 0.2 0.0 1.3
162.00 1.18 5181 4.11 1.0 52.4 11.0 0.0 1.0
164.00 1.12 5199 4.12 1.1 54.3 11.1 0.0 1.1
166.00 1.07 5197 4.12 1.1 54.0 11.0 0.0 1.1
168.00 1.01 5190 4.12 1.1 53.3 11.0 0.0 1.1
s:%1311V000Z1caks%Wg6 Printed 1QWW zta PM Page 14 of 14
ANTl-FLLOTAANN TIODESIGN FOR PER MANENT WATER QUAL TY POND #6

T TATION OF RISER

RISER DIMENSIONS
t
0 f
2
Inside Dimensions Width = ee
.
et
0 f
2
Length = e
.

ELEV. TOP OF RISER = 328.00
00
324
ELEV. BOT. OF RISER = .
00 ft
4
H = .
AREA OF RISER = 4.0 SF
VOLUME OF RISER = 16.0 Cubic Feet

DIAMETER OF BARREL = 15 Inch
AREA OF BARREL = 1.2 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 7.4 Cubic Feet

WEIGHT OF WATER DISPLACED =
FACTOR OF SAFETY (10%) 1457.86 lb
1603.64 lb

VOLUME OF CONCRETE ANCHOR = 18.3 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension
41x4'
Weight of Concrete 2600 lb

ANIT-FLOTATION WEIGHT REQUIRED = -996 lb
t
ANIT-FLOTATION VOLUME REQUIRED = -11.4 Cubic Fee

ANTI-FLOTATION PAD REQUIRED
DEPTH = 0.00 ft
WIDTH = 0.00 ft
LENGTH= 0.00 ft

VOLUME PROVIDED = 0.0 Cubic Feet

SO, NO CONCRETE PAD REQUIRED

FES AT PERMANENT WATER QUALITY POND #6
flow Q in cfs : 17.8
slope S in ft/ft :.033
pipe diameter D in ft : 1.5
Manning number n :.012
Flow depth (ft) = 1.07
Outlet velocity (fps) =13.158
ZONE 2
For a pipe diameter of 1.50 feet and
an outlet velocity of 13.158 feet per second:
The recommended apron length is 9.00 feet.
The maximum stone diameter is 24.5 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 6 B 22
VIPERVIOUS CALCULATION FOR PERMANENT
II WATER QUALITY DRY POND #7
# Lots s.f./Lot Total
8 6,500 52,000
Roadways - s.f.
Lots (houses, drives, etc.) 52,000 s.f.
Golf Cart Paths 11,520 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 63,520 s.f.
Total Area = 16.33 ac.
Impervious Area = 1.46 ac.
Impervious Percentage = 8.9%
The storage volume for the 1" storm (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.130
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.17704442 ac.ft.
7,712 cf
7,712 c.t storage required.
9,254 c.L required including an additional 20% for sediment storage
9,339 c.f. storage provided
-Storage Provided
II Incremental Total
Elev. Area (s.f.) Volume (c f.) Volume (c.f.) Depth (ft)
328 2,033
330 3,454
2
3,852 9,339
331 4,250 3
Drawdown calculation
Orifice required for 2-5 Day Drawdown
3.0 feet of storage so, say 1.5 feet of average head
Using a 1" orifice Q2-day= 5,511
Q = 0.03 cfs Q5-day= 13,777
So, a 1" Orifice will drawdown pond in 3.39 days
5,487 5,487
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The Preserve at Jordan 1/
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
post-Development Runoff 10-yr
Drainage Area, (DA) = 16.33 acres
Overland Flow
Elevation of most remote point, (111) = 0.1 feet
Elevation of point of design, (1-12) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (Hi) = 416.0 feet
Elevation of point of design, (1-12) = 328.0 feet
Length of travel, (L) = 1440.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 6.2 minutes
Pipe Flow
Elevation of most remote point, (Hi) = 0.0 feet
Elevation of point of design, (1-12) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mutt. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) _> 6.2 minutes
Intensity, (I) = 6.92 inches/hr
Area 1 (Impervious) = 1.46 acres
Area 2 (Pervious) = 14.87 acres
Cl. = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) 0.27
Peak Release Rate, (Qlo) _> 30 cfs
Post-Development Runoff. - 25-y r
Drainage Area, (DA) = 16.33 acres
Tim"f Concentration, (TO) _> 6.2 minutes
Intensity, (I) = 7.95 inches/hr
Composite Runoff Coefficient, (C) 0.27
Peak Release Rate, (Qu) _> 35 cfs
Post-Development t` 100-yr
Drainage Area, (DA) _
Time of Concentration, (TO _>
Intensity, (1) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, A00) _>
16.33 acres
6.2 minutes
9.30 inches
0.27
41 cfs
s:11311 W002 MIDSM47 _ printed 1Offl= z08 PM Page 1 of 14
The Pr eserv e at Jordan L ake - EDD WQ#7

Stage - S torage F unction
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
328 2,033
330 3,454 5,487 5,487 2.00
332.0 5,104 8,558 14,045 4.00
8.61 0.69
9.55 1.39
2.00
4.00
Check
Stage Storage
2 5,487
4 14,045
Regression Output:
b° 1.36 (X Variable Coed
K 2,144 (e)
Stage - Storage Equation is of the form: S = (KsXV
.Stage - Discharge Relationship
Bottom Dry Pond Elevation 328.0 feet
Water Surface Elev. (Q10) _ > I feet
Water Surface Elev. (Q25) = 332.3 5 feet
Water Surface Elev. (QI00) = 332.53 feet
Barrel
Dia. of Barrel = 24 inches
Area of Barrel, (Ab) = 3.14 sf
Pipe Length, (L) = 50.0 feet
Friction Coef, (Kp) = 0.01058
Inv. of Barrel = 328.00 feet
Riser
Elev. of Riser Crest = 331.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 1 0.0055
Rectangular:
9A131 rW002%caJ0s%Wq7 prirted 1019M 2:08 PM Page 2 of 14
The Preserve at Jordan Lake - EDD WQ#7
Length of Riser = 4 feet
Width of Riser = 4 feet
Weir Length = 16 feet
Area of Riser = 16 sq.ft.
Width of Spillway (Approx.) = 10 feet
Weir Coefficient = 3.0
Crest Elevation = 332 feet
s:%1311W0U2ba4s+Wq7 p vtod 1DOW 2..OG PM Page 3 of 14
The Preserve at Jordan Lake - 11 t
og 10-yr
Peak Inflow, (Q10) => 30 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff
Vol= 111,598 cf (vol. of runoff
Time to Peak, (Tp) => 44.37 minutes
(SCS TR-55)
Y-tR QQR t 4
(ndn)
0.00 0.000 0 0.00
0.02 0.001 1 0.04
0.05 0.005 2 0.15
0.07 0.011 3 0.34
0.09 0.020 4. 0.60
0.11 0.031 5 0.94
0.14 0.044 6 1.34
0.16 0.060 7 1.81
0.18 0.078 8 2.36
0.20 0.098 9 2.96
0.23 0.120 10 3.63
0.25 0.144 11 4.35
0.27 0.170 12 5.12
0.29 0.197 13 5.95
0.32 0.226 14 6.82
0.34 0.257 15 7.74
0.36 0.288 16 8.69
0.38 0.321 17 9.67
0.41 0.354 18 10.68
0.43 0.388 19 11.71
0.45 0.423 20 12.76
0.47 0.458 21 13.82
0.50 0.494 22 14.89
0.52 0.529 23 15.95
0.54 0.564 24 17.02
0.56 0.599 25 18.07
0.59 0.634 26 19.11
0.61 0.667 27 20.13
0.63 0.700 28 21.12
0.65 0.732 29 22.08
0.68 0.763 30 23.01
0.70 0.792 31 23.90
0.72 0.820 32 24.74
0.74 0.847 33 25.53
0.77 0.871 34 26.28
0.79 0.894 35 26.96
0.81 0.915 36 27.59
0.83 0.934 37 28.16
0.86 0.950 38 28.65
0.88 0.964 39 29.09
0.90 0.976 40 29.45
0.92 0.986 41 29.73
0.95 0.993 42 29.95
0.97 0.998 43 30.09
0.99 1.000 44 30.16
1.01 0.999 45 30.15
1.04 0.997 46 30.06
1.06 0.991 47 29.90
1.08 0.984 48 29.66
1.10 0.973 49 29.36
1.13 0.961 50 28.98
1.15 0.946 51 28.53
sAl311M0002%ca1cslWg7 printed 10M= 2:08 PM
Page 4 of 14
'The Preserve at Jordan L ake - /1
1.17 0.929 52 28.01
1.19 0.909 53 27.43
1.22 0.888 54 26.79
1.24 0.865 55 26.08
1.26 0.841 56 25.37
1.28 0.817 57 24.64
1.31 0.793 58 23.92
1.33 0.770 59 23.23
1.35 0.748 60 22.56
1.37 0.726 61 21.91
1.40 0.706 62 21.28
1.42 0.685 63 20.66
1.44 0.665 64 20.07
1.47 0.646 65 19.49
1.49 0.627 66 18.93
1.51 0.609 67 18.38
1.53 0.592 68 17.85
1.56 0.575 69 17.33
1.58 0.558 70 16.83
1.60 0.542 71 16.35
1.62 0.526 72 15.87
1.65 0.511 73 15.42
1.67 0.496 74 14.97
1.69 0.482 75 14.54
1.71 0.468 76 14.12
1.74 0.455 77 13.71
1.76 0.441 78 13.31
1.78 0.429 79 12.93
1.80 0.416 80 12.56
1.83 0.404 81 12.19
1.85 0.393 82 11.84
1.87 0.381 83 11.50
1.89 0.370 84 11.17
1.92 0.360 85 10.85
1.94 0.349 86 10.53
1.96 0.339 87 10.23
1.98 0.329 88 9.93
sAl31110002WaICMWq7 p inted 1019/00 2:06 PM Page 5 of 14
Pre
!The serve 1
.Storm
Rou ting Table
WEIR ORIFICE W.Q. EMERGENCY, TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) (cft) Ldl m (ds) (Cfs) (cs) (cft) (Cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.15 2 0.01 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.34 10 0.02 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.60 29 0.04 0.0 0.0 0.0 0.0 0.0 0.0
5.00 0.94 62 0.07 0.0 0.0 0.1 0.1 0.0 0.1
6.00 1.34 115 0.12 0.0 0.0 0.2 0.1 0.0 0.1
7.00 1.81 191 0.17 0.0 0.0 0.4 0.1 0.0 0.1
8.00 2.36 295 0.23 0.0 0.0 0.6 0.1 0.0 0.1
9.00 2.96 430 0.31 0.0 0.0 0.9 0.1 0.0 0.1
10.00 3.63 601 0.39 0.0 0.0 1.3 0.1 0.0 0.1
11.00 4.35 810 0.49 0.0 0.0 1.8 0.1 0.0 0.1
12.00 5.12 1062 0.60 0.0 0.0 2.5 0.2 0.0 0.2
13.00 5.95 1360 0.71 0.0 0.0 3.2 0.2 0.0 0.2
14.00 6.82 1707 0.85 0.0 0.0 4.2 0.2 0.0 0.2
15.00 7.74 2104 0.99 0.0 0.0 5.2 0.2 0.0 0.2
16.00 8.69 2556 1.14 0.0 0.0 6.5 0.2 0.0 0.2
17.00 9.67 3064 1.30 0.0 0.0 8.0 0.2 0.0 0.2
18.00 10.68 3629 1.47 0.0 0.0 9.6 0.3 0.0 0.3
19.00 11.71 4255 1.66 0.0 0.0 11A 0.3 0.0 0.3
20.00 12.76 4941 1.85 0.0 0.0 13.5 0.3 0.0 0.3
21.00 13.82 5689 2.05 0.0 0.0 15.5 0.3 0.0 0.3
22.00 14.89 6500 2.27 0.0 0.0 17.0 0.3 0.0 0.3
23.00 15.95 7374 2.49 0.0 0.0 18.4 0.3 0.0 0.3
24.00 17.02 8312 2.72 0.0 0.0 19.8 0.3 0.0 0.3
25.00 18.07 9312 2.95 0.0 0.0 21.1 0.4 0.0 0.4
26.00 19.11 10374 120 4.7 275.9 22.4 0.4 0.0 5.1
27.00 20.13 11216 3.39 12.8 385.4 23.4 0.4 0.0 13.2
28.00 21.12 11633 3.48 17.6 428.8 23.8 0.4 0.0 18.0
29.00 22.08 11819 3.52 19.9 446.7 24.0 0.4 0.0 20.3
30.00 23.01 11925 3.55 21.3 456.6 24.1 0.4 0.0 21.7
31.00 23.90 12006 3.56 22.3 463.9 24.2 0.4 0.0 22.7
32.00 24.74 12077 3.58 23.2 470.3 24.3 0.4 0.0 23.6
33.00 25.53 12143 3.59 24.1 476.1 24.4 0.4 0.0 24.5
34.00 26.28 12205 3.61 24.9 481.4 24.4 0.4 0.0 24.8
35.00 26.96 12292 3.63 26.1 488.9 24.5 0.4 0.0 24.9
36.00 27.59 12415 3.65 27.8 499.3 24.6 0.4 0.0 25.0
37.00 28.16 12568 3.69 30.0 511.8 24.8 0.4 0.0 25.2
38.00 28.65 12746 3.72 32.5 526.0 25.0 0.4 0.0 25.4
39.00 29.09 12943 3.77 35.4 541.1 25.2 0.4 0.0 25.6
40A0 29.45 13154 3.81 38.6 556.9 25.4 0.4 0.0 25.8
41.00 29.73 13374 3.86 42.0 572.8 25.6 0.4 0.0 26.0
42.00 29.95 13599 3.91 45.5 5885 25.8 0.4 0.0 26.2
43.00 30.09 13824 3.95 49.2 603.7 26.0 0.4 0.0 26.4
44.00 30.16 14045 4.00 52.8 618.2 26.2 0.4 0.0 26.6
45.00 30.15 14257 4.04 56.4 631.8 26.4 0.4 0.3 27.1
46.00 30.06 14439 4.08 59.5 643.3 26.6 0.4 0.7 27.7
47.00 29.90 14581 4.11 61.9 652.0 26.7 0.4 1.1 28.2
48.00 29.66 14681 4.13 63.7 658.0 26.8 0.4 1.5 28.7
49.00 29.36 14742 4.15 64.7 661.7 26.8 0.4 1.7 28.9
50.00 28.98 14768 4.15 65.2 663.2 26.9 0.4 1.8 29.0
51.00 28.53 14764 4.15 65.1 663.0 26.8 0.4 1.7 29.0
52.00 28.01 14735 4.14 64.6 661.2 26.8 0.4 1.6 28.9
53.00 27.43 14682 4.13 63.7 658.1 26.8 0.4 1.5 28.7
54.00 26.79 14608 4.12 62.4 653.6 26.7 0.4 1.2 28.3
55.00 26.08 14514 4.10 60.8 647.9 26.6 0.4 0.9 28.0
56.00 25.37 14401 4.07 58.8 640.9 26.5 0.4 0.6 27.6
57.00 24.64 14269 4.05 56.6 632.6 26.4 0.4 0.3 27.1
58.00 23.92 14120 4.02 54.0 623.1 263 0.4 0.1 26.7
59.00 23.23 13950 3.98 51.2 612.0 26.1 0.4 0.0 26.5
60.00 22.56 13752 3.94 48.0 598.9 25.9 0.4 0.0 26.3
s.-%1"1&0z=ic iwg7 21.91 13525 3.89 4 1W=2-U&6 25.7 0.4 0.0 3&*e 6 of 14
The Pres erve at Jordan La ke - 1 1
62.00 21.28 13272 3.84 40.4 565.4 25.5 0.4 0.0 25.9
63.00 20.66 12995 3.78 36.2 545.1 25.2 0.4 0.0 25.6
64.00 20.07 12698 3.71 31.8 522.2 24.9 0.4 0.0 25.3
65.00 19.49 12383 3.65 27.4 496.6 24.6 0.4 0.0 25.0
66.00 18.93 12052 3.57 22.9 468.0 24.3 0.4 0.0 23.3
67.00 18.38 11789 3.52 19.5 443.9 24.0 0.4 0.0 19.9
68.00 17.85 11696 3.49 18.4 434.9 23.9 0.4 0.0 18.8
69.00 17.33 11640 3.48 17.7 429.5 23.8 0.4 0.0 18.1
70.00 16.83 11594 3.47 17.1 425.0 23.8 0.4 0.0 17.5
71.00 16.35 11552 3.46 16.6 420.7 23.7 0.4 0.0 17.0
72.00 15.87 11511 3.45 16.2 416.6 23.7 0.4 0.0 16.5
73.00 15.42 11470 3.45 15.7 412.5 23.7 0.4 0.0 16.1
74.00 14.97 11431 3.44 15.2 408.4 23.6 0.4 0.0 15.6
75.00 14.54 11393 3.43 14.8 404.4 23.6 0.4 0.0 15.2
76.00 14.12 11355 3.42 14.3 400.4 23.5 0.4 0.0 14.7
77.00 13.71 11318 3.41 13.9 396.5 23.5 0.4 0.0 14.3
78.00 13.31 11282 3.40 13.5 392.6 23.4 0.4 0.0 13.9
79.00 12.93 11246 3.40 13.1 388.7 23.4 0.4 0.0 13.5
80.00 12.56 11211 3.39 12.7 384.9 23.4 0.4 0.0 13.1
81.00 12.19 11177 3.38 12.4 381.1 23.3 0.4 0.0 12.8
82.00 11.84 11144 3.37 12.0 377.3 23.3 0.4 0.0 12.4
83.00 11.50 11111 3.37 11.6 373.6 23.3 0.4 0.0 12.0
84.00 11.17 11079 3.36 11.3 369.9 23.2 0.4 0.0 11.7
85.00 10.85 11047 3.35 11.0 366.2 23.2 0.4 0.0 11.4
86.00 10.53 11016 3.34 10.7 362.6 212 0.4 0.0 11.0
87.00 10.23 10986 3.34 10.3 359.0 23.1 0.4 0.0 10.7
88.00 9.93 10956 3.33 10.0 355.4 23.1 0.4 0.0 10.4

og i
Peak Inflow, (Q50) = 35 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 146,861 cf (vol. of runoff
Time to Peak, (Tp) 50.81 minutes
(SCS TR-55)
Y-!p Q/QP t Q
(min) cfs
0.00 0.000 0.00 0.00
0.02 0.001 1.00 0.03
0.04 0.004 2.00 0.13
0.06 0.009 3.00 0.30
0.08 0.015 4.00 0.53
0.10 0.024 5.00 0.82
0.12 0.034 6.00 1.18
0.14 0.046 7.00 1.60
0.16 0.060 8.00 2.08
0.18 0.075 9.00 2.61
0.20 0.093 10.00 3.21
0.22 0.111 11.00 3.85
0.24 0.131 12.00 4.55
0.26 0.153 13.00 5.30
0.28 0.176 14.00 6.10
0.30 0.200 15.00 6.93
0.31 0.225 16.00 7.81
0.33 0.252 17.00 8.72
0.35 0.279 18.00 9.67
0.37 0.307 19.00 10.64
0.39 0.336 20.00 11.64
0.41 0.365 21.00 12.66
0.43 0.395 22.00 13.70
0.45 0.426 23.00 14.76
s11311VKX)Z=Jcs%Wg7 printed 101&W 2:08 Pre Page 7 of 14
The Preserve at Jordan L ake - E D D !
0.47 0.457 24.00 15.82
0.49 0.487 25.00 16.89
0.51 0.518 26.00 17.96
0.53 0.549 27.00 19.03
0.55 0.580 28.00 20.09
0.57 0.610 29.00 21.14
0.59 0.640 30.00 22.18
0.61 0.669 31.00 23.20
0.63 0.698 32.00 24.20
0.65 0.726 33.00 25.17
0.67 0.753 34.00 26.11
0.69 0.779 35.00 27.01
0.71 0.805 36.00 27.88
0.73 0.828 37.00 28.71
0.75 0.851 38.00 29.50
0.77 0.872 39.00 30.23
0.79 0.892 40.00 30.92
0.81 0.911 41.00 31.56
0.83 0.928 42.00 32.15
0.85 0.943 43.00 32.67
0.87 0.956 44.00 33.14
0.89 0.968 45.00 33.55
0.91 0.978 46.00 33.89
0.92 0.986 47.00 34.18
0.94 0.992 48.00 34.39
0.96 0.997 49.00 34.55
0.98 0.999 50.00 34.63
1.00 1.000 51.00 34.65
1.02 0.999 52.00 34.61
1.04 0.995 53.00 34.50
1.06 0.990 54.00 34.32
1.08 0.983 55.00 34.08
1.10 0.975 56.00 33.77
1.12 0.964 57.00 33.40
1.14 0.951 58.00 32.97
1.16 0.937 59.00 32.48
1.18 0.922 60.00 31.93
1.20 0.904 61.00 31.33
1.22 0.885 62.00 30.67
1.24 0.865 63.00 29.96
1.26 0.844 64.00 29.25
1.28 0.823 65.00 28.51
1.30 0.802 66.00 27.79
1.32 0.782 67.00 27.09
1.34 0.762 68.00 26.41
1.36 0.743 69.00 25.74
1.38 0.724 70.00 25.09
1.40 0.706 71.00 24.46
1.42 0.688 72.00 23.84
1.44 0.671 73.00 23.24
1.46 0.654 74.00 22.65
1.48 0.637 75.00 22.08
1.50 0.621 76.00 21.52
1.52 0.605 77.00 20.98
1.54 0.590 78.00 20.45
1.55 0.575 79.00 19.93
1.57 0.561 80.00 19.43
s:%1311%0002%aWMWq7 printed 101SM 2:08 PM Page 8 of 14
The-Pre serve at Jordan L ake - 1 1

Storm Rou ting Table
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) WS) Lcq.. fm (cfs) WS) WS) WS) SCfs2
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.03 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.13 2 0.01 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.30 9 0.02 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.53 25 0.04 0.0 0.0 0.0 0.0 0.0 0.0
5.00 0.82 54 0.07 0.0 0.0 0.1 0.1 0.0 0.1
6.00 1.18 100 0.10 0.0 0.0 0.2 0.1 0.0 0.1
7.00 1.60 167 0.15 0.0 0.0 0.3 0.1 0.0 0.1
8.00 2.08 258 0.21 0.0 0.0 0.5 0.1 0.0 0.1
9.00 2.61 377 0.28 0.0 0.0 0.8 0.1 0.0 0.1
10.00 3.21 527 0.36 0.0 0.0 1.1 0.1 0.0 0.1
11.00 3.85 712 0.44 0.0 0.0 1.6 0.1 0.0 0.1
12.00 4.55 935 0.54 0.0 0.0 2.1 0.2 0.0 0.2
13.00 5.30 1199 0.65 0.0 0.0 2.8 0.2 0.0 0.2
14.00 6.10 1506 0.77 0.0 0.0 3.6 0.2 0.0 0.2
15.00 6.93 1861 0.90 0.0 0.0 4.6 0.2 0.0 0.2
16.00 7.81 2265 1.04 0.0 0.0 5.7 0.2 0.0 0.2
17.00 8.72 2721 1.19 0.0 0.0 7.0 0.2 0.0 0.2
18.00 9.67 3230 1.35 0.0 0.0 8.4 0.2 0.0 0.2
19.00 10.64 3795 1.52 0.0 0.0 10.1 0.3 0.0 0.3
20.00 11.64 4418 1.70 0.0 0.0 11.9 0.3 0.0 0.3
21.00 12.66 5100 1.90 0.0 0.0 14.0 0.3 0.0 0.3
22.00 13.70 5843 2.09 0.0 0.0 15.8 0.3 0.0 0.3
23.00 14.76 6647 2.30 0.0 0.0 17.3 0.3 0.0 0.3
24.00 15.82 7513 2.52 0.0 0.0 18.7 0.3 0.0 0.3
25.00 16.89 8442 2.75 0.0 0.0 20.0 0.3 0.0 0.3
26.00 17.96 9435 2.98 0.0 0.0 21.3 0.4 0.0 0.4
27.00 19.03 10491 3.23 5.7 293.6 22.6 0.4 0.0 6.0
28.00 20.09 11270 3.40 13.4 391.4 23.4 0.4 0.0 13.8
29.00 21.14 11649 3.48 17.8 430.4 23.8 0.4 0.0 18.2
30.00 22.18 11825 3.52 20.0 447.3 24.0 0.4 0.0 20.4
31.00 23.20 11933 3.55 21.4 457.3 24.1 0.4 0.0 21.8
32.00 24.20 12019 3.57 22.5 465.1 24.2 0.4 0.0 .22.9
33.00 25.17 12098 3.58 23.5 472.2 24.3 0.4 0.0 23.9
34.00 26.11 12173 3.60 24.5 478.7 24.4 0.4 0.0 24.8
35.00 27.01 12252 3.62 25.6 485.5 24.5 0.4 0.0 24.9
36.00 27.88 12381 3.64 27.3 496.4 24.6 0.4 0.0 25.0
37.00 28.71 12554 3.68 29.7 510.6 24.8 0.4 0.0 25.2
38.00 29.50 12766 3.73 32.8 527.5 25.0 0.4 0.0 25.4
39.00 30.23 13012 3.78 36.4 546.3 25.2 0.4 0.0 25.6
40.00 30.92 13288 3.84 40.6 566.6 25.5 0.4 0.0 25.9
41
00 31.56 13589 3.90 45.4 587.8 25.8 0.4 0.0 26.2
.
42.00 32.15 13911 3.97 50.6 609.5 26.1 0.4 0.0 26.5
43.00 32.67 14250 4.04 56.2 631.4 26.4 0.4 0.3 27.1
44.00 33.14 14586 4.11 62.0 652.2 26.7 0.4 1.1 28.3
45.00 33.55 14879 4.17 67.1 669.8 26.9 0.4 2.2 29.6
46.00 33.89 15118 4.22 71.4 683.8 27.2 0.4 3.2 30.8
47.00 34.18 15307 4.26 74.9 694.5 27.3 0.4 4.0 31.8
48
00 34.39 15450 4.29 77.5 702.6 27.4 0.4 4.7 32.6
.
00
49 34.55 15558 4.31 79.5 708.5 27.5 0.4 5.3 33.2
.
50.00 34.63 15636 4.33 80.9 712.9 27.6 0.4 5.7 33.7
51.00 34.65 15692 434 82.0 715.9 27.6 0.4 6.0 34.1
52.00 34.61 15727 4.35 82.6 717.8 27.7 0.4 6.2 34.3
53.00 34.50 15747 4.35 83.0 718.9 27.7 0.4 6.3 34.4
54.00 34.32 15753 4.35 83.1 719.2 27.7 0.4 6.3 34.4
00
55 34.08 15746 4.35 83.0 718.8 27.7 0.4 6.3 34.4
.
00
56 33.77 15727 4.35 82.6 717.8 27.7 0.4 6.2 34.3
.
57.00 33.40 15697 4.34 82.1 716.1 27.7 0.4 6.0 34.1
58.00 32.97 15656 4.33 81.3 713.9 27.6 0.4 5.8 33.8
59.00 32.48 15604 4.32 80.3 711.1 27.6 0.4 5.5 33.5
60.00 31.93 15542 4.31 79.2 707.7 27.5 0.4 5.2 33.1
9m6ihh ws+wq7 31.33 15469 4.30 7;ug.a i mo A916 27.5 0.4 4.8 able 9 of 14
The Pre serve at Jordan E D D
62.00 30.67 15387 4.28 76.3 699.0 27.4 0.4 4.4 32.2
63.00 29.96 15293 4.26 74.6 693.7 27.3 0.4 4.0 31.7
64.00 29.25 15189 4.24 72.7 687.8 27.2 0.4 3.5 31.1
65.00 28.51 15076 4.21 70.7 681.3 27.1 0.4 3.0 30.5
66.00 27.79 14955 4.19 68.5 674.3 27.0 0.4 2.5 29.9
67.00 27.09 14827 4.16 66.2 666.8 26.9 0.4 2.0 29.3
68.00 26.41 14694 4.14 63.9 658.8 26.8 0.4 1.5 28.7
69.00 25.74 14556 4.11 61.5 650.4 26.7 0.4 1.0 28.1
70.00 25.09 14412 4.08 59.0 641.5 26.5 0.4 0.6 27.6
71.00 24.46 14261 4.05 56.4 632.1 26.4 0.4 0.3 27.1
72.00 23.84 14102 4.01 53.8 621.9 26.3 0.4 0.0 26.7
73.00 23.24 13930 3.98 50.9 610.7 26.1 0.4 0.0 26.5
74.00 22.65 13733 3.93 47.7 597.6 25.9 0.4 0.0 26.3
75.00 22.08 13512 3.89 44.1 582.4 25.7 0.4 0.0 26.1
76.00 21.52 13269 3.84 40.4 565.2 25.5 0.4 0.0 25.9
77.00 20.98 13007 3.78 36.4 546.0 25.2 0.4 0.0 25.6
78.00 20.45 12728 3.72 32.2 524.5 24.9 0.4 0.0 25.4
79.00 19.93 12434 3.66 28.1 500.8 24.7 0.4 0.0 25.1
80.00 19.43 12126 3.59 23.9 474.6 24.3 0.4 0.0 24.3
'
Inflow
Hy o
drograph 100-yr
Peak Inflow, (Qloo) = 41 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in
Q*= 3.46 in. (depth of runoff
Vol= 204,938 cf (vol. of runoff)
Time to Peak, (Tp) 60.61 minutes
(SCS TR-55)
VAR Q/QD t s
(cfs)
0.00 0.000 0.00 0.00
0.02 0.001 1.00 0.03
0.04 0.003 2.00 0.11
0.06 0.006 3.00 0.24
0.08 0.011 4.00 0.43
0.10 0.017 5.00 0.68
0.12 0.024 6.00 0.97
0.14 0.033 7.00 1.32
0.16 0.042 8.00 1.72
0.18 0.053 9.00 2.17
0.20 0.066 10.00 2.66
0.22 0.079 11.00 3.21
0.24 0.094 12.00 3.80
0.26 0.109 13.00 4.43
0.28 0.126 14.00 5.11
0.30 0.144 15.00 5.82
0.31 0.162 16.00 6.58
0.33 0.182 17.00 7.37
0.35 0.202 18.00 8.20
0.37 0.223 19.00 9.06
0.39 0.245 20.00 9.95
0.41 0.268 21.00 10.87
0.43 0.291 22.00 11.81
0.45 0.315 23.00 12.78
0.47 0.339 24.00 13.76
0.49 0.364 25.00 14.77
0.51 0.389 26.00 15.78
0.53 0.415 27.00 16.81
0.55 0.440 28.00 17.85
0.57 0.466 29.00 18.90
0.59 0.492 30.00 19.95
sA131110002%c2ks1Wg7 protect 1OM6W2'OBPM
S=
2.66 in.
Page 10 of 14
The Preserve at Jordan L ake - ED D WQ#7
0.61 0.518 31.00 21.00
0.63 0.544 32.00 22.05
0.65 0.570 33.00 23.09
0.67 0.595 34.00 24.13
0.69 0.620 35.00 25.15
0.71 0.645 36.00 26.17
0.73 0.670 37.00 27.16
0.75 0.694 38.00 28.14
0.77 0.718 39.00 29.10
0.79 0.741 40.00 30.03
0.81 0.763 41.00 30.94
0.83 0.785 42.00 31.82
0.85 0.806 43.00 32.67
0.87 0.826 44.00 33.48
0.89 0.845 45.00 34.26
0.91 0.863 46.00 35.00
0.92 0.881 47.00 35.70
0.94 0.897 48.00 36.36
0.96 0.912 49.00 36.98
0.98 0.926 50.00 37.55
1.00 0.939 51.00 38.08
1.02 0.951 52.00 38.55
1.04 0.962 53.00 38.98
1.06 0.971 54.00 39.36
1.08 0.979 55.00 39.69
1.10 0.986 56.00 39.96
1.12 0.991 57.00 40.19
1.14 0.995 58.00 40.36
1.16 0.998 59.00 40.47
1.18 1.000 60.00 40.53
1.20 1.000 61.00 40.54
1.22 0.999 62.00 40.49
1.24 0.996 63.00 40.39
1.26 0.992 64.00 40.23
1.28 0.987 65.00 40.02
1.30 0.981 66.00 39.76
1.32 0.973 67.00 39.44
1.34 0.964 68.00 39.07
1.36 0.953 69.00 38.66
1.38 0.942 70.00 38.19
1.40 0.929 71.00 37.67
1.42 0.915 72.00 37.11
1.44 0.900 73.00 36.50
1.46 0.884 74.00 35.85
1.48 0.867 75.00 35.16
1.50 0.850 76.00 34.47
1.52 0.832 77.00 33.74
1.54 0.815 78.00 33.03
1.55 0.797 79.00 32.32
1.57 0.780 80.00 31.64
1.59 0.764 81.00 30.97
1.61 0.748 82.00 30.31
1.63 0.732 83.00 29.67
1.65 0.716 84.00 29.04
s.Y1311W0D2%c2lGskYVg7 Pfi?tsd t0OW2:os Pm Page 11 of 14
'The Pre serve at Jordan La ke - 11

Rou
Storm ting 100-
vi-WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (Cfs) Sc
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.03 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.11 2 0.01 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.24 7 0.02 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.43 20 0.03 0.0 0.0 0.0 0.0 0.0 0.0
5.00 0.68 44 0.06 0.0 0.0 0.1 0.1 0.0 0.1
6.00 0.97 82 0.09 0.0 0.0 0.1 0.1 0.0 0.1
7.00 1.32 136 0.13 0.0 0.0 0.3 0.1 0.0 0.1
8.00 1.72 211 0.18 0.0 0.0 0.4 0.1 0.0 0.1
9.00 2.17 309 0.24 0.0 0.0 0.6 0.1 0.0 0.1
10.00 2.66 432 0.31 0.0 0.0 0.9 0.1 0.0 0.1
11.00 3.21 585 0.38 0.0 0.0 1.3 0.1 0.0 0.1
12.00 3.80 770 0.47 0.0 0.0 1.7 0.1 0.0 0.1
13.00 4.43 989 0.57 0.0 0.0 2.3 0.2 0.0 0.2
14.00 5.11 1245 0.67 0.0 0.0 2.9 0.2 0.0 0.2
15.00 5.82 1541 0.78 0.0 0.0 3.7 0.2 0.0 0.2
16.00 6.58 1879 0.91 0.0 0.0 4.6 0.2 0.0 0.2
17.00 7.37 2262 1.04 0.0 0.0 5.7 0.2 0.0 0.2
18.00 8.20 2691 1.18 0.0 0.0 6.9 0.2 0.0 0.2
19.00 9.06 3170 1.33 0.0 0.0 8.3 0.2 0.0 0.2
20.00 9.95 3699 1.50 0.0 0.0 9.8 0.3 0.0 0.3
21.00 10.87 4280 1.67 0.0 0.0 11.5 0.3 0.0 0.3
22.00 11.81 4916 1.84 0.0 0.0 13.4 0.3 0.0 0.3
23.00 12.78 5607 2.03 0.0 0.0 15.4 0.3 0.0 0.3
24.00 13.76 6356 2.23 0.0 0.0 16.8 0.3 0.0 0.3
25.00 14.77 7163 2.43 0.0 0.0 18.1 0.3 0.0 0.3
26.00 15.78 8029 2.65 0.0 0.0 19.4 0.3 0.0 0.3
27.00 16.81 8956 2.87 0.0 0.0 20.7 0.4 0.0 0.4
28.00 17.85 9943 3.10 1.7 196.0 21.9 0.4 0.0 2.1
29.00 18.90 10891 3.32 9.4 347.5 23.0 0.4 0.0 9.8
30.00 19.95 11439 3.44 15.3 409.3 23.6 0.4 0.0 15.7
31.00 21.00 11694 3.49 18.4 434.7 23.9 0.4 0.0 18.8
32.00 22.05 11829 3.52 20.0 447.6 24.0 0.4 0.0 20.4
33.00 23.09 11926 3.55 21.3 456.6 24.1 0.4 0.0 21.7
34.00 24.13 12011 3.56 22.4 464.4 24.2 0.4 0.0 22.8
35.00 25.15 12092 3.58 23.4 471.6 24.3 0.4 0.0 23.8
36.00 26.17 12171 3.60 24.5 478.6 24.4 0.4 0.0 24.8
37.00 27.16 12254 3.62 25.6 485.7 24.5 0.4 0.0 24.9
38.00 28.14 12392 3.65 27.5 497.3 24.6 0.4 0.0 25.0
39.00 29.10 12579 3.69 30.1 512.7 24.8 0.4 0.0 25.2
40.00 30.03 12813 3.74 33.5 531.2 25.0 0.4 0.0 25.4
41.00 30.94 13088 3.80 37.6 552.0 25.3 0.4 0.0 25.7
42.00 31.82 13402 3.86 42.4 574.7 25.6 0.4 0.0 26.0
43.00 32.67 13750 3.94 48.0 598.8 25.9 0.4 0.0 26.3
44.00 33.48 14130 4.02 54.2 623.7 26.3 0.4 0.1 26.8
45.00 34.26 14532 4.10 61.1 649.0 26.6 0.4 1.0 28.0
46.00 35.00 14905 4.18 67.6 671.4 27.0 0.4 23 29.7
47.00 35.70 15224 4.25 73.4 689.8 27.2 0.4 3.6 31.3
48.00 36.36 15487 4.30 78.2 704.6 27.5 0.4 4.9 32.8
49.00 36.98 15700 4.34 82.1 716.3 27.7 0.4 6.0 34.1
50.00 37.55 15872 4.38 85.4 725.6 27.8 0.4 7.0 35.2
51.00 38.08 16013 4.41 88.0 733.1 27.9 0.4 7.8 36.1
52.00 39.55 16130 4.43 90.3 739.3 28.0 0.4 8.5 36.9
53.00 38.98 16229 4.45 92.2 744.4 28.1 0.4 9.1 37.6
54.00 39.36 16312 4.47 93.8 748.7 28.2 0.4 9.6 38.2
55.00 39.69 16383 4.48 95.2 752.4 28.2 0.4 10.0 38.7
56.00 39.96 16444 4.49 96.4 755.5 28.3 0.4 10.4 39.1
57.00 40.19 16495 4.50 97.3 758.1 28.3 0.4 10.7 39.5
58.00 40.36 16537 4.51 98.2 760.2 28.3 0.4 11.0 39.8
59.00 40.47 16571 4.52 98.8 761.9 28.4 0.4 11.2 40.0
60.00 40.53 16597 4.52 99.3 763.3 28.4 0.4 11.4 40.2
$A16iL +wq7 40.54 16615 4.53 99Qed IW=2364Q 28.4 0.4 11.5 ft412 of 14
The Pre serve at Jordan L ake - E DD
62.00 40.49 16626 4.53 99.9 764.7 28.4 0.4 11.6 40.4
63.00 40.39 16629 4.53 100.0 764.8 28.4 0.4 11.6 40.5
64.00 40.23 16624 4.53 99.9 764.6 28.4 0.4 11.6 40.4
65.00 40.02 16612 4.53 99.6 764.0 28.4 0.4 11.5 40.3
66.00 39.76 16593 4.52 99.3 763.0 28.4 0.4 11.4 40.2
67.00 39.44 16566 4.52 98.7 761.7 28.4 0.4 11.2 40.0
68.00 39.07 16533 4.51 98.1 760.0 28.3 0.4 11.0 39.8
69.00 38.66 16492 4.50 97.3 757.9 28.3 0.4 10.7 39.5
70.00 38.19 16443 4.49 96.3 755.5 28.3 0.4 10.4 39.1
71.00 37.67 16388 4.48 95.3 752.6 28.2 0.4 10.0 38.7
72.00 37.11 16326 4.47 94.1 749.4 28.2 0.4 9.6 38.3
73.00 36.50 16256 4.46 92.7 745.8 28.1 0.4 9.2 37.8
74.00 35.85 16179 4.44 91.2 741.9 28.1 0.4 8.8 37.3
75.00 35.16 16096 4.42 89.6 737.5 28.0 0.4 8.3 36.7
76.00 34.47 16004 4.40 87.9 732.7 27.9 0.4 7.7 36.1
77.00 33.74 15909 4.38 86.1 727.6 27.8 0.4 7.2 35.4
78.00 33.03 15807 4.36 84.1 722.1 27.7 0.4 6.6 34.8
79.00 32.32 15702 4.34 82.2 716.4 27.7 0.4 6.0 34.1
80.00 31.64 15594 4.32 80.2 710.5 27.6 0.4 5.5 33.5
81.00 30.97 15485 4.30 78.1 704.5 27.5 4.9 32.4
82.00 30.31 15401 4.28 76.6 699.8 27.4 4.5 31.9
83.00 29.67 15307 4.26 74.9 694.5 27.3 4.0 31.3
84.00 29.04 15206 4.24 710 688.8 27.2 3.6 30.8
s:11311=OZcaIp%Wg7 pintect 1019/002:06 PM Page 13 of 14
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND 97

FLOTATION OF RISER

RISER DIMENSIONS
Inside Dimensions Width = 4.0 feet
Length = 4.0 feet

ELEV. TOP OF RISER =
ELEV. BOT. OF RISER =
H = 331.00
328.00
3.00 ft
AREA OF RISER = 16.0 SF
VOLUME OF RISER = 48.0 Cubic Feet

DIAMETER OF BARREL = 24 Inch
AREA OF BARREL = 3.1 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 18.8 Cubic Feet

WEIGHT OF WATER DISPLACED = 4171.41 lb
FACTOR OF SAFETY (10%) 4588.55 lb
I
VOLUME OF CONCRETE ANCHOR = 52.4 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension 41x4'
Weight of Concrete 4425 Ib

ANIT-FLOTATION WEIGHT REQUIRED= 164 lb
ANIT-FLOTATION VOLUME REQUIRED = 1.9 Cubic Feet

ANTI-FLOTATION PAD REQUIRED
DEPTH = 1.00 ft
WIDTH = 6.00 ft
LENGTH= 6.00 ft

VOLUME PROVIDED = 36.0 Cubic Feet

IPSO, USE CONCRETE PAD 1'x6'x6'

FES AT PERMANENT WATER QUALITY POND 47
flow Q in cfs : 24 Flow depth (ft) = 0.93
slope S in ft/ft :.05 Outlet velocity (fps) = 16.889
pipe diameter D in ft : 2
Manning number n: .012
ZONE 3
For a pipe diameter of 2.00 feet and
an outlet velocity of 16.89 feet per second:
The recommended apron length is 16.00 feet.
The maximum stone diameter.is 38.5 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 13 B 22
WQ#7 Emergency Spillway
Channel Calculator - Bare Earth
Given Input Data:
Shape ........................... Trapezoidal
Solving for ..................... Depth of Flow
,Flowrate ........................ 6.3000 cfs
Slope ........................... 0.1000 ft/ft
Manning's n ..................... 0.0200
Height .......................... 12.0000 in
Bottom width .................... 120.0000 in
Left slope ...................... 0.3300 ft/ft
Right slope ..................... 0.3300 ft/ft
Computed Results:
Depth ........................... 1.3163 in
Velocity ........................ 5.4725 fps
Flow area ....................... 1.1512 ft2
Flow perimeter .................. 122.8985 in
Hydraulic radius ................ 1.3489 in
Top width ....................... 120.9083 in
Area ............................ 10.3300 ft2
Perimeter ....................... 145.2730 in
Percent full .................... 11.4688 0
Critical Informati
Critical depth ..................
Critical slope ..................
Critical velocity ...............
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ...................
Flow condition ..................
on
2.7657 in
0.0099 ft/ft
2.7129 fps
2.3223 ft2
125.8248 in
2 . 6577 in
121.8253 in
0.5801 ft
0.3457 ft
2.8542
Supercritical
Page 1
TEMPORARY LINER DESIGN
FOR CHANNELS
#N, ELE 8.05 Q'
Permissible JShecr Stresses
for Riprcp cnd Temporcry
Liners
EROSION AND SEDIMEN IAION CONTFCL
PLANNING. AND DESIGN MANUAL -
NCRTH CAROLINA
IT = yds ?
T = Shecr Stress in lb/ft = Unit Weicht or Wcter, 62.4- lb/ft
v
d = Fiow depth in ft.
s = C: cnnel Grcdient in it./`t.
-RALEICaH-
PRQJECT n
PROJECT NAME:-
DA TE:
BY: -
Permissible Unit Shear Stress, Td
Lining Category Lining Type (lb/ft-2)
Temporary Woven Pacer Net C.15
Jute Net 0.45
Fiberglass Roving:
Single 0
Double 0.35
Straw with Net 1.-5
Curled Wood mat 1.55
Synthetic Mat 2.C0
so Stone Size (Inc: es)
Gravel Ricrac 1 0.-C
2
Rcck Ricrac 6 ? SQ'
9 -.a0
12 5.00
is 6.30
18 7.30
21 8.30
24 10.00
E!_ WQ 7 Er-IES2seNGy py
11 1 PE REQUIRED:
d = I 1 LINIi1;G i
s - rRCM.
T = • (08 TO:
iN EL
d =
S =
I =
m
C A, iN iNl E L
c =
s =
T =
C?'?,1?Ii?lEL
d=
s =
T =
Ft,'AiN N EL
s =
T =
LINiIiNG 7'7-E REQUIRED:
10 M:
O:
LINING TYPE REQUIRED:
F„0 M:
T C:
LINING TYPE REQUIRED:
FROM:
TC:
LINING TYPE REQUIRED:
FROM:
70:
J .
WQ#7 Emergency Spillway
Channel Calculator - Grass Lined
Given Input Data:
Shape ..........
Solving for ....
Flowrate .......
Slope ..........
Manning's n ....
Height .........
Bottom width ...
Left slope .....
Right slope ....
Computed Results:
Depth ..........
Velocity .......
Flow area ......
Flow perimeter .
Hydraulic radius
Top width ......
Area ...........
Perimeter ......
Percent full ...
Critical Informati
Critical depth ..................
Critical slope ..................
Critical velocity ...............
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ...................
Flow condition ..................
Trapezoidal
Depth of Flow
6.3000 cfs
0.1000 ft/ft
0.0350
12.0000 in
120.0000 in
0.3300 ft/ft
0.3300 ft/ft
1.9298 in
3.8969 fps
1.6167 ft2
124.0642 in
1.8764 in
121.2736 in
10.3300 ft2
145.2730 in
16.0813 0
on
2.7657 in
0.0305 ft/ft
2.7129 fps
2.3223 ft2
125.8248 in
2.6577 in
121.8253 in
0.3968 ft
0.3457 ft
1.7177
Supercritical
Page 1
-?PERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY WET POND #8
0
Roadways 118,048 s.f.
Lots (houses, drives, etc.) 455,000 s.f.
Golf Cart Paths 69,600 s.f.
Off-Site Impervious 42,000 s.f.
Total Impervious Area 684,648 s.f.
Total Area = 131.68 ac.
Impervious Area = 15.72 ac.
Impervious Percentage = 12%
The storage volume for the 1" storm (Schueler Method) would be:
RV =.05-1-.009 (1)
RV= 0.16
Volume = (Design Rainfall) " (RV)•(Drainage Area)
Volume = 1.73378667 ac.ft.
75,524 cf
75,524 c.t storage required.
76,034 c.t storage provided.
Approximate Forebay Volume (20%) = 15,105
Permanent Pool Depth = 6 ft.
SA / DA ratio = 0.398 c.f.
-equired Surface Area = 0.52 ac.
22,829 sf
Storage Provided
Incremental Total
Elev. Area (s f) Volume (c.f.) Volume (c.f.) Depth (ft.)
302 24,555
52,810 52,810
304 28,255 2
23,224 76,034
304.8 29,804
Drawdown calculation
Orifice required for 2-5 Day Drawdown
2.5 feet of storage so, say 1.25 feet of average head
Using a 3" orifice Q2-day= 45,640
Q = 0.26 cfs Q5-day= 114,099
So, a 3" Orifice will drawdown pond in 3.33 days
2.8
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The Preserve at Jordan Lake
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff with a permanent pool depth.

Po 1 10-yr
Drainage Area, (DA) = 131.68 acres
Overland Flow
Elevation of most remote point, (Hl) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet

=
Length of travel, (I,) 0.0 feet

Mutt. factor = 2 0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote Point, (HI) = 511.0 feet
Elevation of point of design, (H2) = 296.0 feet
Length of travel, (L) = 5260.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 19.6 minutes
Pipe Flow
Elevation of most remote point, (Hi) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (TO _> 19.6 minutes
Intensity, (I) = 4.69 inches/hr
Area 1 (Impervious) = 15.72 acres
Area 2 (Pervious) = 115.96 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) 0.29
Peak Release Rate, (Qlo) _> 179 cfs
Tost-Development Runoff Drainage Area, (DA) = 131.68 acres
Time UConcentration, (TO _> 19.6 minutes
Intensity, (1) = 5.44 inches/hr
Composite Runoff Coefficient, (C) _> 0.29
Peak Release Rate, (Qu) _> 208 cfs
Post-Development Runoff 100-yr
Drainage Area, (DA) _
Time of Concentration, (Tc) _>
Intensity, (I) _
Composite Runoff Coefficient, (C)
Peak Release Rate, (Ql0o) _>
131.68 acres
19.6 minutes
6.50 inches
0.29
248 cfs
priltea 10M= a:4s AM Pagel of 14
a:\1311 W 0021cakslW Q8.100800
'The P reserve at Jordan L ake

Stage - S toraoe Func tion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (of) (cf) (ft) In (S) In (Z) Z est

302 24,555
304 28,255 52,810 52,810 2.00 10.87 0.69 2.01
306.0 32,168 60,423 113,233 4.00 11.64 1.39 3.96
308.0 36,327 68,495 181,728 6.00 12.11 1.79 6.04
Check
Stage Storage
2 52,595
4 114,492
6 180,465
Regression Output:
b, 1.12 (X Variable Coefl)
K 24,161 (eY a° "`p`)
Stage - Storage Equation is of the form: S = (KsXZ) b

Discharge Relationship
,Stage -
Normal Water Surface Elev. = 302.0 feet
Water Surface Elev. (Q10) _ 2- feet
Water Surface Elev. (Qu) _ 306.f() feet
Water Surface Elev. (QI00) _ 06.91 feet
rimary Spillway
Barrel
Dia. of Barrel =
Area of Barrel, (Ab)
Pipe Length, (L) _
Friction Coeff., (Kp)
Inv. of Barrel =
Riser
Elev. of Riser Crest
Circular:
Dia. of Riser =
Weir Length=
Area of Riser =
Water Quality Orifice
sA1311100021cakslWQ8-100800
36 inches
7.07 sf
72.0 feet
0.00616
296.00 feet
304.80 feet
inches
- feet
- sq. ft.
3 " 0.0491
printed 10!&00 9:51 AM
Page 2 of 14
The Preserve at Jordan Lake I
Rectangular:
Length of Riser = 4 feet
Width of Riser = 4 feet
Weir Length = 16 feet
Area of Riser = 16 sq.ft.
Permanent Pool Depth = 6 ft.
Width of Spillway (Approx.) = 15 feet
Weir Coefficient = 3.0
Crest Elevation = 304.8 feet
DFGVT
s:tI 31110002UMICSMOS-100600 pmted 1WO100 9:45 AM Page 3 of 14
The Pre serve a t Jordan Lake

Inflow Hy drograhh - 10-yr
Peak Inflow, (Qlo) =>
Time to Peak Calculation:
Time to Peak, (Tp) =>
(SCS TR-55)

0.00
0.03
0.07
0.10
0.13
0.17
0.20
0.23
0.26
0.30
0.33
0.36
0.40
0.43
0.46
0.50
0.53
0.56
0.60
0.63
0.66
0.70
0.73
0.76
0.79
0.83
0.86
0.89
0.93
0.96
0.99
1.03
1.06
1.09
1.13
1.16
1.19
1.23
1.26
1.29
1.32
1.36
1.39
1.42
1.46
1.49
1.52
179 cfs
CN= 79 P= 3.9 in
Q*= 1.88 in. (depth of runoff
Vol= 899,893 cf (vol. of runoff
60.39 minutes
Q?QU t 4
(rnm)
WS)
0.000 0 0.00
0.003 2 0.48
0.011 4 1.93
0.024 6 4.32
0.043 8 7.62
0.066 10 11.82
0.094 12 16.85
0.127 14 22.66
0.163 16 29.19-
0.204 18 36.38
0.247 20 44.14
0.293 22 52.38
0.342 24 61.03
0.392 26 69.98
0.443 28 79.14
0.495 30 88.41
0.547 32 97.70
0.598 34 106.89
0.649 36 115.89
0.697 38 124.60
0.744 40 132.93
0.788 42 140.79
0.829 44 148.10
0.866 46 154.77
0.900 48 160.73
0.929 50 165.92
0.953 52 170.28
0.973 54 173.76
0.987 56 176.34
0.996 58 177.97
1.000 60 178.64
0.998 62 178.35
0.991 64 177.09
0.979 66 174.89
0.961 68 171.76
0.939 70 167.74
0.912 72 162.87
0.880 74 157.21
0.845 76 151.03
0.810 78 144.66
0.776 80 138.57
0.743 82 132.73
0.712 84 127.13
0.682 86 121.78
0.653 88 116.65
0.625 90 111.73
0.599 92 107.02
S=
2.66 in.
e:11311VXMZCa1CSXWQ8-100600 printed 7OM=9:45AM Page 4 of 14
The Preserve a t Jordan L ake
1.56 0.574 94 102.51
1.59 0.550 96 98.19
1.62 0.526 98 94.06
1.66 0.504 100 90.09
1.69 0.483 102 86.30
1.72 0.463 104 82.66
1.76 0.443 106 79.18
1.79 0.424 108 75.84
1.82 0.407 110 72.65
1.85 0.389 112 69.58
1.89 0.373 114 66.65
1.92 0.357 116 63.84
1.95 0.342 118 61.15
1.99 0.328 120 58.58
2.02 0.314 122 56.11
2.05 0.301 124 53.74
2.09 0.288 126 51.48
2.12 0.276 128 49.31
2.15 0.264 130 47.23
2.19 0.253 132 45.24
2.22 0.243 134 43.34
2.25 0.232 136 41.51
2.28 0.223 138 39.76
2.32 0.213 140 38.09
2.35 0.204 142 36.48
2.38 0.196 144 34.94
2.42 0.187 146 33.47
2.45 0.179 148 32.06
2.48 0.172 150 30.71
2.52 0.165 152 29.42
2.55 0.158 154 28.18
2.58 0.151 156 26.99
2.62 0.145 158 25.85
2.65 0.139 160 24.76
2.68 0.133 162 23.72
2.72 0.127 164 22.72
2.75 0.122 166 21.76
2.78 0.117 168 20.85
2.81 0.112 170 19.97
2.85 0.107 172 19.13
2.88 0.103 174 18.32
2.91 0.098 176 17.55
sAl311kaomrcalcsXwae-iooew artmd 1000 9:45 AM Page 5 of 14
The Pre serve at Jordan L ake

WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) il±SZ LCIL (ft) (cfs) (cfs) (cfs) (Cfs) (Cfs) (Cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.48 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.93 58 0.00 0.0 0.0 0.0 0.1 0.0 0.1
6.00 4.32 274 0.02 0.0 0.0 0.0 0.3 0.0 0.3
8.00 7.62 761 0.05 0.0 0.0 0.1 0.4 0.0 0.4
10.00 11.82 1627 0.09 0.0 0.0 0.2 0.6 0.0 0.6
12.00 16.85 2976 0.15 0.0 0.0 0.5 0.7 0.0 0.7
14.00 22.66 4908 0.24 0.0 0.0 1.0 0.9 0.0 0.9
16.00 29.19 7516 0.35 0.0 0.0 1.7 1.1 0.0 1.1
18.00 36.38 10884 0.49 0.0 0.0 2.8 1.3 0.0 1.3
20.00 44.14 15090 0.66 0.0 0.0 4.3 1.5 0.0 1.5
22.00 52.38 20202 0.85 0.0 0.0 6.3 1.8 0.0 1.8
24.00 61.03 26277 1.08 0.0 0.0 9.0 2.0 0.0 2.0
26.00 69.98 33365 1.33 0.0 0.0 12.4 2.2 0.0 2.2
28.00 79.14 41500 1.62 0.0 0.0 16.6 2.4 0.0 2.4
30.00 88.41 50707 1.94 0.0 0.0 21.6 2.6 0.0 2.6
32.00 97.70 61000 2.28 0.0 0.0 27.7 2.9 0.0 2.9
34.00 106.89 72380 2.66 0.0 0.0 34.8 3.1 0.0 3.1
36.00 115.89 84835 3.06 7.1 316.6 93.6 3.3 6.0 16.5
38.00 124.60 96767 3.44 27.2 495.9 95.9 3.5 23.2 54.0
40.00 132.93 105242 3.71 45.9 590.0 97.5 3.7 39.1 88.7
42.00 140.79 110555 3.88 59.0 641.7 98.5 3.7 50.3 113.1
44.00 148.10 113881 3.98 67.8 671.9 99.1 3.8 57.8 129.3
46.00 154.77 116137 4.05 73.9 691.5 99.5 3.8 63.0 140.7
48.00 160.73 117826 4.10 78.6 705.9 99.8 3.8 67.0 149.4
50.00 165.92 119184 4.15 82.4 717.2 100.1 3.9 70.3 156.5
52.00 170.28 120309 4.18 85.7 726.4 100.3 3.9 73.0 162.5
54.00 173.76 121239 4.21 88.3 734.0 100.4 3.9 75.3 167.5
56.00 176.34 121987 4.23 90.5 740.0 100.6 3.9 77.2 171.6
58.00 177.97 122557 4.25 92.2 744.5 100.7 3.9 78.6 174.7
60.00 178.64 122950 4.26 93.4 747.6 100.7 3.9 79.6 176.9
62.00 178.35 123165 4.27 94.0 749.3 100.8 3.9 80.1 178.0
64.00 177.09 123203 4.27 94.1 749.6 100.8 3.9 80.2 178.2
66.00 174.89 123065 4.27 93.7 748.5 100.8 3.9 79.9 177.5
68.00 171.76 122754 4.26 92.8 746.1 100.7 3.9 79.1 175.8
70.00 167.74 122272 4.24 91.4 742.2 100.6 3.9 77.9 173.1
72.00 162.87 121624 4.22 89.5 737.1 100.5 3.9 76.2 169.6
74.00 157.21 120815 4.20 87.1 730.5 100.4 3.9 74.2 165.2
76.00 151.03 119850 4.17 84.3 722.7 100.2 3.9 71.9 160.1
78.OQ. 144.66 118764 4.13 81.2 713.7 100.0 3.9 69.2 154.3
80.00 138.57 117604 4.10 78.0 704.0 99.8 3.8 66.4 148.3
82.00 132.73 116441 4.06 74.7 694.1 99.6 3.8 63.7 142.2
84.00 127.13 115299 4.03 71.6 684.3 99.4 3.8 61.0 136.4
86.00 121.78 114184 3.99 68.6 674.5 99.2 3.8 58.4 130.8
88.00 116.65 113100 3.96 65.7 664.9 99.0 3.8 56.0 125.4
90.00 111.73 112046 3.92 62.9 655.4 98.8 3.8 53.6 120.3
92.00 107.02 111022 3.89 60.2 646.0 98.6 3.7 51.3 115.3
94.00 102.51 110027 3.86 57.7 636.7 98.4 3.7 49.2 110.6
96.00 98.19 109061 3.83 55.2 627.6 98.2 3.7 47.1 106.0
98.00 94.06 108122 3.80 52.9 618.6 98.1 3.7 45.1 101.7
100.00 90.09 107210 3.77 50.6 609.7 97.9 3.7 43.2 97.5
102.00 86.30 106324 3.74 48.5 600.9 97.7 3.7 41.3 93.5
104.00 82.66 105463 3.72 46.4 592.2 97.6 3.7 39.6 89.6
106.00 79.18 104626 3.69 44.4 583.7 97.4 3.6 37.9 86.0
108.00 75.84 103813 3.67 42.5 575.3 97.3 3.6 36.3 82.4
110.00 72.65 103024 3.64 40.7 566.9 97.1 3.6 34.7 79.0
112.00 69.58 102256 3.62 39.0 558.7 97.0 3.6 332 75.8
114.00 66.65 101510 3.59 37.3 550.6 96.8 3.6 31.8 72.7
116.00 63.84 100785 3.57 35.7 542.6 96.7 3.6 30.4 69.7
118.00 61.15 100081 3.55 34.2 534.7 96.6 3.6 29.1 66.9
120.00 58.58 99396 3.53 32.7 527.0 96.4 3.6 27.9 64.1
s:S?i3? ?ia?wo? do 98731 3.51 3lcaaect loreao5:19AJ& 96.3 3.6 26.7 67?6ge 6 of 14
The Pr eserve a t Jordan L ake 1
124.00 53.74 98084 3.48 29.9 511.7 96.2 3.5 25.5 59.0
126.00 51.48 97455 3.47 28.6 504.2 96.1 3.5 24.4 56.6
128.00 49.31 96843 3.45 27.4 496.8 95.9 3.5 23.3 54.3
130.00 47.23 96249 3.43 26.2 489.5 95.8 3.5 22.3 52.0
132.00 45.24 95671 3.41 25.1 482.3 95.7 3.5 21.4 49.9
134.00 43.34 95109 3.39 24.0 475.1 95.6 3.5 20.4 47.9
136.00 41.51 94563 3.37 22.9 468.1 95.5 3.5 19.5 45.9
138.00 39.76 94032 3.36 21.9 461.2 95.4 3.5 18.7 44.1
140.00 38.09 93515 3.34 21.0 454.3 95.3 3.5 17.9 42.3
s:n3llXOW2VmL?%woe-1006W pirtect t0M=9:46AM Page 7of14
142.00 36.48 93013 3.32 20.0 447.5 95.2 3.5 17.1 40.6
144.00 34.94 92524 3.31 19.1 440.8 95.1 3.4 16.3 38.9
146.00 33.47 92049 3.29 18.3 434.2 95.0 3.4 15.6 37.3
148.00 32.06 91587 3.28 17.5 427.7 94.9 3.4 14.9 35.8
150.00 30.71 91137 3.26 16.7 421.2 94.8 3.4 14.2 34.4
152.00 29.42 90700 3.25 15.9 414.8 94.8 3.4 13.6 33.0
154.00 28.18 90274 3.24 15.2 408.5 94.7 3.4 13.0 31.6
156.00 26.99 89860 3.22 14.5 402.3 94.6 3.4 12.4 30.3
158.00 25.85 89457 3.21 13.9 396.1 94.5 3.4 11.8 29.1
160.00 24.76 89065 3.20 13.3 390.0 94.4 3.4 11.3 27.9
162.00 23.72 88683 3.19 12.6 384.0 94.4 3.4 10.8 26.8
164.00 22.72 88311 3.17 12.1 378.0 94.3 3.4 10.3 25.7
166.00 21.76 87950 3.16 11.5 372.1 94.2 3.4 9.8 24.7
168.00 20.85 87598 3.15 11.0 366.3 94.1 3.4 9.4 23.7
170.00 19.97 87255 3.14 10.5 360.5 94.1 3.4 8.9 22.7
172.00 19.13 86921 3.13 10.0 354.8 94.0 3.4 8.5 21.8
174.00 18.32 86596 3.12 9.5 349.1 93.9 3.3 8.1 21.0
176.00 17.55 86279 3.11 9.1 343.5 93.9 3.3 7.7 20.1
Peak Inflow, (Qso) =
208 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff)
Vol= 1,184,240 cf (vol. of runoff
Time to Peak, (Tp) => 68.41 minutes
(SCS TR-55)
?Q t 4
(Rdn) (cfs)
0.00 0.000 0.00 0.00
0.04 0.005 3.00 0.98
0.09 0.019 6.00 3.92
0.13 0.042 9.00 8.74
0.18 0.074 12.00 15.37
0.22 0.114 15.00 23.67
0.26 0.161 18.00 33.49
0.31 0.215 21.00 44.64
0.35 0.274 24.00 56.91
0.39 0.338 27.00 70.07
0.44 0.404 30.00 83.87
0.48 0.472 33.00 98.05
0.53 0.541 36.00 112.34
0.57 0.609 39.00 126.46
0.61 0.675 42.00 140.16
0.66 0.738 45.00 153.16
0.70 0.796 48.00 165.23
0.75 0.849 51.00 176.14
0.79 0.894 54.00 185.67
0.83 0.933 57.00 193.65
0.88 0.963 60.00 199.93
0.92 0.985 63.00 204.39
0.96 0.997 66.00 206.94
1.01 1.000 69.00 207.53
1.05 0.993 72.00 206.16
1.10 0.977 75.00 202.85
1.14 0.952 78.00 197.66
1.18 0.919 81.00 190.70
1.23 0.877 84.00 182.08
1.27 0.831 87.00 172.44
1.32 0.785 90.00 162.88
1.36 0.741 93.00 153.85
1.40 0.700 96.00 145.33
s1131110002kaks%WO8-100800 pirated 10/SW 9:45 AM
Page 8 of 14
!The Pre serve at Jordan 1
1.45 0.661 99.00 137.27
1.49 0.625 102.00 129.67
1.53 0.590 105.00 122.48
1.58 0.557 108.00 115.69
1.62 0.526 111.00 109.28
1.67 0.497 114.00 103.23
1.71 0.470 117.00 97.51
1.75 0.444 120.00 92.10
1.80 0.419 123.00 87.00
1.84 0.396 126.00 82.18
1.89 0.374 129.00 77.62
1.93 0.353 132.00 73.32
1.97 0.334 135.00 69.26
2.02 0.315 138.00 65.42
2.06 0.298 141.00 61.80
2.11 0.281 144.00 58.37
2.15 0.266 147.00 55.14
2.19 0.251 150.00 52.08
2.24 0.237 153.00 49.19
2.28 0.224 156.00 46.47
2.32 0.211 159.00 43.89
2.37 0.200 162.00 41.46
2.41 0.189 165.00 39.16
2.46 0.178 168.00 36.99
2.50 0.168 171.00 34.94
2.54 0.159 174.00 33.01
2.59 0.150 177.00 31.18
2.63 0.142 180.00 29.45
2.68 0.134 183.00 27.82
2.72 0.127 186.00 26.28
2.76 0.120 189.00 24.82
2.81 0.113 192.00 23.44
2.85 0.107 195.00 22.15
2.89 0.101 198.00 20.92
2.94 0.095 201.00 19.76
2.98 0.090 204.00 18.66
3.03 0.085 207.00 17.63
3.07 0.080 210.00 16.65
3.11 0.076 213.00 15.73
3.16 0.072 216.00 14.86
3.20 0.068 219.00 14.03
3.25 0.064 222.00 13.26
3.29 0.060 225.00 12.52
3.33 0.057 228.00 11.83
3.38 0.054 231.00 11.17
11 3.42 0.051 234.00 10.55
3.46 0.048 237.00 9.97
3.51 0.045 240.00 9.42

Stonn Ro uting Table
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
Wn) f!?ffl (cf) (ft) (cfs) (cfs) (Cfs) [Effl (cfs) (cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.98 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
6.00 3.92 177 0.01 0.0 0.0 0.0 0.2 0.0 0.2
9.00 8.74 844 0.05 0.0 0.0 0.1 0.4 0.0 0.4
12.00 15.37 2340 0.12 0.0 0.0 0.4 0.7 0.0 0.7
15.00 23.67 4985 0.25 0.0 0.0 1.0 0.9 0.0 0.9
18.00 33.49 9076 0.42 0.0 0.0 2.2 1.2 0.0 1.2
21.00 44.64 14883 0.65 0.0 0.0 4.2 1.5 0.0 1.5
24.00 56.91 22643 0.94 0.0 0.0 7.4 1.8 0.0 1.8
27.00 70.07 32556 1.30 0.0 0.0 12.0 2.2 0.0 2.2
30.00 83.87 44779 1.73 0.0 0.0 18.3 2.5 0.0 2.5
s:ka3iQQ z=ft w o 59427 2.23 0.0M L amm g." 26.8 2.8 0.0 2 %ge 9 of 14
237.00 9.97 82689 2.99 4.5 271.7 41.6 3.3 3.8 11.6
240.00 9.42 82399 2.98 4.2 265.0 41.4 3.3 3.5 11.0
Peak Inflow, (Qloo) = 248 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S=
Q*= 3.46 in. (depth of runoff
Vol= 1,652,554 cf (vol. of runoff
Time to Peak, (Tp) => 79.95 minutes
(SCS TR-55)
t/?yt 292 t Q
(Rdn) cfs
0.00 0.000 0.00 0.00
0.04 0.003 3.00 0.86
0.09 0.014 6.00 3.43
0.13 0.031 9.00 7.67
0.18 0.055 12.00 13.52
0.22 0.084 15.00 20.91
0.26 0.120 18.00 29.72
0.31 0.161 21.00 39.85
0.35 0.206 24.00 51.14
0.39 0.256 27.00 63.44
0.44 0.309 30.00 76.58
0.48 0.365 33.00 90.37
0.53 0.422 36.00 104.64
0.57 0.481 39.00 119.17
0.61 0.540 42.00 133.76
0.66 0.598 45.00 148.22
0.70 0.655 48.00 162.34
0.75 0.710 51.00 175.93
0.79 0.762 54.00 188.80
0.83 0.810 57.00 200.76
0.88 0.854 60.00 211.66
0.92 0.893 63.00 221.34
0.96 0.927 66.00 229.67
1.01 0.954 69.00 236.54
1.05 0.976 72.00 241.83
1.10 0.991 75.00 245.49
1.14 0.999 78.00 247.47
1.18 1.000 81.00 247.73
1.23 0.994 84.00 246.27
1.27 0.981 87.00 243.11
1.32 0.962 90.00 238.30
1.36 0.936 93.00 231.90
1.40 0.904 96.00 224.00
1.45 0.866 99.00 214.71
1.49 0.826 102.00 204.82
1.53 0.787 105.00 195.07
1.58 0.750 108.00 185.78
1.62 0.714 111.00 176.94
1.67 0.680 114.00 168.51
1.71 0.648 117.00 160.49
1.75 0.617 120.00 152.85
1.80 0.587 123.00 145.57
1.84 0.559 126.00 138.64
1.89 0.533 129.00 132.04
1.93 0.507 132.00 125.76
1.97 0.483 135.00 119.77.
2.02 0.460 138.00 114.07
2.06 0.438 141.00 108.64
sA1311\0002kaIcMWO8-100800 prukect 10MW9:45 AM
2.66 in.
Page 11 of 14
2.11 0.417 144.00 103.46
2.15 0.398 147.00 98.54
2.19 0.379 150.00 93.85
2.24 0.361 153.00 89.38
2.28 0.343 156.00 85.12
2.32 0.327 159.00 81.07
2.37 0.312 162.00 77.21
2.41 0.297 165.00 73.54
2.46 0.283 168.00 70.04
2.50 0.269 171.00 66.70
2.54 0.256 174.00 63.53
2.59 0.244 177.00 60.50
2.63 0.232 180.00 57.62
2.68 0.221 183.00 54.88
2.72 0.211 186.00 52.26
2.76 0.201 189.00 49.78
2.81 0.191 192.00 47.41
2.85 0.182 195.00 45.15
2.89 0.174 198.00 43.00
2.94 0.165 201.00 40.95
2.98 0.157 204.00 39.00
3.03 0.150 207.00 37.15
3.07 0.143 210.00 35.38
3.11 0.136 213.00 33.69
3.16 0.129 216.00 32.09
3.20 0.123 219.00 30.56
3.25 0.117 222.00 29.11
3.29 0.112 225.00 27.72
3.33 0.107 228.00 26.40
3.38 0.101 231.00 25.14
3.42 0.097 234.00 23.95
3.46 0.092 237.00 22.81
3.51 0.088 240.00 21.72
3.55 0.083 243.00 20.69
3.60 0.079 246.00 19.70
3.64 0.076 249.00 18.76
3.68 0.072 252.00 17.87
s11311W002%caki9%WQ8-IOO= printed lOf6 09:45AM Page 12 of 14
The Pre serve at Jordan L ake

'Storm Ro utina Table - 100-Y
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (?) (SD- (ft) (Cfs) (Cfs) "s) (Cfs) (Cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.86 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
6.00 3.43 155 0.01 0.0 0.0 0.0 0.2 0.0 0.2
9.00 7.67 736 0.04 0.0 0.0 0.1 0.4 0.0 0.4
12.00 13.52 2044 0.11 0.0 0.0 0.3 0.6 0.0 0.6
15.00 20.91 4364 0.22 0.0 0.0 0.8 0.9 0.0 0.9
18.00 29.72 7969 0.37 0.0 0.0 1.8 1.2 0.0 1.2
21.00 39.85 13111 0.58 0.0 0.0 3.5 1.4 0.0 1.4
24.00 51.14 20023 0.85 0.0 0.0 6.3 1.7 0.0 1.7
27.00 63.44 28914 1.17 0.0 0.0 10.2 2.1 0.0 2.1
30.00 76.58 39963 1.57 0.0 0.0 15.7 2.4 0.0 2.4
33.00 90.37 53319 2.02 0.0 0.0 23.1 2.7 0.0 2.7
36.00 104.64 69101 2.55 0.0 0.0 32.7 3.0 0.0 3.0
39.00 119.17 87390 3.14 10.7 362.8 94.1 3.4 9.1 23.1
42.00 133.76 104678 3.69 44.6 584.2 97.4 3.6 38.0 86.2
45.00 148.22 113243 3.96 66.1 666.2 99.0 3.8 56.3 126.1
48.00 162.34 117218 4.08 76.9 700.8 99.7 3.8 65.5 146.3
51.00 175.93 120114 4.17 85.1 724.8 100.2 3.9 72.5 161.5
54.00 188.80 122714 4.25 92.7 745.7 100.7 3.9 79.0 175.6
57.00 200.76 125097 4.33 99.8 764.4 101.1 3.9 85.0 188.8
60.00 211.66 127256 4.40 106.4 780.8 101.5 4.0 90.7 196.1
63.00 221.34 130051 4.48 115.1 801.6 102.0 4.0 98.1 204.1
66.00 229.67 133158 4.58 125.0 824.0 102.5 4.1 106.5 213.1
69.00 236.54 136137 4.67 134.7 844.8 103.1 4.1 114.8 222.0
72.00 241.83 138758 4.75 143.5 862.7 103.5 4.1 122.3 229.9
75.00 245.49 140903 4.81 150.8 877.1 103.9 4.2 128.5 236.5
78.00 247.47 142519 4.86 156.3 887.7 104.1 4.2 133.2 241.5
81.00 247.73 143585 4.89 160.0 894.7 104.3 4.2 136.4 244.9
84.00 246.27 144096 4.91 161.8 898.0 104.4 4.2 137.9 246.5
87.00 243.11 144054 4.91 161.7 897.7 104.4 4.2 137.8 246.4
90.00 238.30 143467 4.89 159.6 893.9 104.3 4.2 136.0 244.5
93.00 231.90 142347 4.86 155.7 886.6 104.1 4.2 132.7 241.0
96.00 224.00 140708 4.81 150.1 875.8 103.8 4.2 127.9 235.9
99.00 214.71 138564 4.74 142.8 861.4 103.5 4.1 121.7 229.3
102.00 204.82 135934 4.66 134.1 843.4 103.0 4.1 1143 221.4
105.00 195.07 132956 4.57 124.3 822.5 102.5 4.1 106.0 212.5
108.00 185.78 129814 4.47 114.3 799.8 102.0 4.0 97.4 203.4
111.00 176.94 126642 4.38 104.5 776.2 101.4 4.0 89.0 194.4
114.00 168.51 123497 4.28 95.0 751.9 100.8 3.9 81.0 179.9
117.Q0 160.49 121454 4.22 89.0 735.7 100.5 3.9 75.8 168.7
120.00 152.85 119978 4.17 84.7 723.7 100.2 3.9 72.2 160.8
123.00 145.57 118554 4.13 80.6 712.0 100.0 3.9 68.7 153.2
126.00 138.64 117177 4.08 76.8 700.4 99.7 3.8 65.4 146.0
129.00 132.04 115845 4.04 73.1 689.0 99.5 3.8 62.3 139.2
132.00 125.76 114557 4.00 69.6 677.8 99.2 3.8 59.3 132.7
135.00 119.77 113310 3.96 66.2 666.8 99.0 3.8 56.5 126.5
138.00 114.07 112104 3.93 63.1 655.9 98.8 3.8 53.7 120.5
141.00 108.64 110938 3.89 60.0 645.2 98.6 3.7 51.2 114.9
144.00 103.46 109809 3.85 57.1 634.7 98.4 3.7 48.7 109.5
147.00 98.54 108716 3.82 54.4 624.3 98.2 3.7 46.3 104.4
150.00 93.85 107659 3.79 51.7 614.1 98.0 3.7 44.1 99.5
153.00 89.38 106636 3.75 49.2 604.0 97.8 3.7 42.0 94.9
156.00 85.12 105647 3.72 46.9 594.1 97.6 3.7 39.9 90.4
159.00 81.07 104689 3.69 44.6 584.3 97.4 3.6 38.0 86.2
162.00 77.21 103761 3.66 42.4 574.7 97.2 3.6 36.2 82.2
00
165 73.54 102864 3.64 40.4 565.2 97.1 3.6 34.4 78.4
.
168.00 70.04 101995 3.61 38.4 555.9 96.9 3.6 32.7 74.7
171.00 66.70 101154 3.58 36.5 546.7 96.8 3.6 31.1 71.2
174.00 63.53 100340 3.56 34.7 537.7 96.6 3.6 29.6 67.9
177.00 60.50 99552 3.53 33.0 528.7 96.5 3.6 28.1 64.7
180.00 57.62 98788 3.51 31.4 519.9 96.3 3.6 26.8 61.7
S;?gi3?6z+w??vro 8a 98049 3.48 29p&ea ,areroo9Hpa 96.2 3.5 25.5 3&@e 13 of 14
,The Pr eserve a t Jordan L ake
186.00 52.26 97334 3.46 28.4 502.7 96.0 3.5 24.2 56.1
189.00 49.78 96641 3.44 27.0 494.3 95.9 3.5 23.0 53.5
192.00 47.41 95970 3.42 25.7 486.0 95.8 3.5 21.9 51.0
195.00 45.15 95320 3.40 24.4 477.8 95.6 3.5 20.8 48.6
198.00 43.00 94690 3.38 23.2 469.8 95.5 3.5 19.7 46.4
201.00 40.95 94080 3.36 22.0 461.8 95.4 3.5 18.8 44.2
204.00 39.00 93490 3.34 20.9 454.0 95.3 3.5 17.8 42.2
207.00 37.15 92917 3.32 19.9 446.2 95.2 3.5 16.9 40.2
210.00 35.38 92363 3.30 18.9 438.6 95.1 3.4 16.1 38.4
213.00 33.69 91825 3.29 17.9 431.1 95.0 3.4 15.3 36.6
216.00 32.09 91304 3.27 17.0 423.6 94.9 3.4 14.5 34.9
219.00 30.56 90800 3.25 16.1 416.3 94.8 3.4 13.7 33.3
222.00 29.11 90310 3.24 15.3 409.1 94.7 3.4 13.0 31.7
225.00 27.72 89836 3.22 14.5 401.9 94.6 3.4 12.4 30.3
228.00 26.40 89376 3.21 13.8 394.9 94.5 3.4 11.7 28.9
231.00 25.14 88931 3.19 13.0 387.9 94.4 3.4 11.1 27.5
234.00 23.95 88498 3.18 12.4 381.0 94.3 3.4 10.5 26.3
237.00 22.81 88079 3.17 11.7 374.2 94.2 3.4 10.0 25.1
240.00 21.72 87673 3.15 11.1 367.5 94.2 3.4 9.5 23.9
243.00 20.69 87278 3.14 10.5 360.9 94.1 9.0 19.5
246.00 19.70 87501 3.15 10.8 364.6 94.1 9.2 20.1
249.00 18.76 87435 3.15 10.7 363.5 94.1 9.1 19.9
252.00 17.87 87234 3.14 10.4 360.1 94.1 8.9 19.3
SAI311X000MCaLsW08-100600 pirteQ 10/WW 2:02 PM Page 14 of 14
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #8

FLOTATION OF RISER

RISER DIMENSIONS
0 feet
4
Inside Dimensions Width = .
0 feet
4
Length = .

00
304
ELEV. TOP OF RISER = .
00
296
ELEV. BOT. OF RISER = .
00 ft
8
H = .
0 SF
16
AREA OF RISER = .
0 Cubic Feet
128
VOLUME OF RISER = .

36 Inch
DIAMETER OF BARREL =
1 SF
7
AREA OF BARREL = .
00 ft
6
EXPOSED LENGTH = .
4 Cubic Feet
42
VOLUME OF BARREL = .

WEIGHT OF WATER DISPLACED = 10633.68 lb
051b
11697
FACTOR OF SAFETY (10%) .

VOLUME OF CONCRETE ANCHOR = 133.5 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
41x4'
Inside Dimension 9775 lb
Weight of Concrete

ANIT-FLOTATION WEIGHT REQUIRED = 1922 lb
t
F
bi
ANIT-FLOTATION VOLUME REQUIRED = ee
c
21.9 Cu

ANTI-FLOTATION PAD REQUIRED
DEP 1.00 ft
00 ft
6
WI
.
00 ft
6
LEN .

bic Feet
0 C
36
VOLUME PROVIDED = u
.

O, USE CONCRETE PAD 1'x6'x6'

FES AT WATER QUALITY POND #8
flow Q in cfs : 102 Flow depth (ft) = 2.34
slope S in ft/ft :.022 Outlet velocity (fps) = 17.255
pipe diameter D in ft : 3
Manning number n :.012
ZONE 5
For a pipe diameter of 3.00 feet and
an outlet velocity of 17.26 feet per second:
The recommended apron length is 30.00 feet.
The maximum stone diameter is 40.0 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
>> 23 2 30 «

WQ#8 Emergency Spillway
Channel Calculator - Bare Earth
Given Input Data:
Shape ........................... Trapezoidal
Solving for ..................... Depth of Flow
Flowrate ........................ 99.8000 cfs
Slope ........................... 0.1100 ft/ft
Manning's n ..................... 0.0200
Height .......................... 12.0000 in
Bottom width .................... 180.0000 in
Left slope ...................... 0.3300 ft/ft
Right slope ..................... 0.3300 ft/ft
Computed Results:
Depth ........................... 5.5530 in
Velocity ........................ 14.2328 fps
Flow area ....................... 7.0120 ft2
Flow perimeter .................. 191.6952 in
Hydraulic radius ................ 5.2673 in
Top width ....................... 183.6650 in
Area ............................ 15.3300 ft2
Perimeter ....................... 205.2730 in
Percent full .................... 46.2753 0
Critical Information
Critical depth ..................
Critical slope ..................
Critical velocity ...............
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ...................
Flow condition ..................
0.0000 in
0.0000 ft/ft
0.0000 fps
0.0000 ft2
0.0000 in
0.0000 in
0.0000 in
0.0000 ft
0.0000 ft
0.0000
Critical
Page 1
TEMPORARY
FOR
WE LE 8.05c
Permissible ?Shecr Stresses
for Riprcp cnd Temporcry
Liners
1 EROSION AND SEDIMENTAION CONTROL
PLANNING. AND DESIGN MANUAL -
.NORTH CAROLINA
= yds
7
T = Shear Stress in lb/fl-
y = Unit Weight of Water, 62.? Ib/ft
d = Ficw depth in ft.
s = C:-icnnel Grcdient in ft./it.
C i\•1 iN E I
s =
T =
-RALElVH-
PROJECi n
PROJECT NAivtE:_
3A ri=:
3Y:
Permissible Unit Shear Stress, Td
Lining Category Lining Type (lb/ft`)
Temporary Woven Pacer Net 0.15
Jute Net 0.45
Fiberglass Rcving:
Single 0.50
Double 0.85
Straw with Net 1.45
Curied'Nccd mat 1.55
Synthetic Mat
aso Stone Size (inches) 2.00
Gravel Riprap 1 0.-0
2 0.30
Rock Riprap 6 2.50'

9 i
180
12 S.OO
1s 6.so
18 7.50
21 8.330
24 10.00

(/V Q ?? ?1ut?GNGy SQ:t.I-j_
LINING T rPE REQUIRED: GLA55 ft VC
• ? I FROM:
70:
C i-i;'. ill iN E L
d =
s =
T =
C L A ICI IN E L
d =
s =
T =
C L; , I?l I?l E L
d =
s =
T =
Pt,'A N N E L
s =
T =
LINER DESIGN
. CHANNELS
LINHNG T rPE RECUIRED:
FROM:
T0:
LINING T (PE REQUIRED:
T C:
LINING TYPE REQUIRED:
FROM:
70:
LINING TYPE REQUIRED:
FROM:
TO:
rG.
vJa*? S ??re?e ? S'?;wa ?Y
Channel Calculator - Riprap Lined
Given Input Data:
Shape ..........
Solving for ....
Flowrate .......
Slope ..........
Manning's n ....
Height .........
Bottom width ...
Left slope .....
Right slope ....
Computed Results:
Depth ..........
Velocity .......
Flow area ......
Flow perimeter .
Hydraulic radius
Top width ......
Area ...........
Perimeter ......
Percent full ...
Critical Informati
Critical depth ..................
Critical slope ..................
Critical velocity ...............
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ...................
Flow condition ..................
Trapezoidal
Depth of Flow
99.8000 cfs
0.1100 ft/ft
0.1790
24.0000 in
180.0000 in
0.3300 ft/ft
0.3300 ft/ft
21.4401 in
3.5830 fps
27.8536 ft2
225.1547 in
17.8140 in
194.1505 in
31.3200 ft2
230.5461 in
89.3338 0
on
0.0000 in
0.0000 ft/ft
0.0000 fps
0.0000 ft2
0.0000 in
0.0000 in
0.0000 in
0.0000 ft
0.0000 ft
0.0000
Critical
Page 1
11111111VIPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #9
# Lots s.f./Lot Total
12 6,500 78,000
Roadways 42,250 s.f.
Lots (houses, drives, etc.) 78,000 s.f.
Golf Cart Paths 12,000 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 132,250 s.f.
Total Area = 11.33 ac.
Impervious Area = 3.04 ac.
Impervious Percentage = 26.8%
The storage volume for the 1" storm (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.291
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.27494133 ac.ft
11,976 cf
11,976 c.f. storage required.
14,372 c.f. required including an additional 20% for sediment storage
14,378 c.f. storage provided
==Ptorage Provided
Incremental Total
Elev. Area (s f) Volume (c.f.) Volume (c.f.) Depth (ft)
366 2,243
5,776 5,776
368 3,533 2
8,602 14,378
370 5,069 4
Drawdown calculation
Orifice required for 2-5 Day Drawdown
4.0 feet of storage so, say 2.0 feet of average head
Using a 1" orifice Q2-day= 6,363
Q = 0.04 cfs Q5-day= 15,908
So, a 1" Orifice will drawdown pond in 4.52 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
Pr
The
' eserve Jordan it •-'
Stage S
Funct
torage
ion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
366 1,903 -
368 3,193 5,096 5,096 2.00 8.54 0.69 2.02
370.0 4,729 7,922 13,018 4.00 9.47 1.39 3.92
372.0 6,494 11,223 24,241 6.00 10.10 1.79 6.08
Check
Stage Storage
2 5,040
4 13,415
6 23,786
Regression Output.
b= 1.41 (X Variable Coeff)
K 1,893 (eY-""--O)
Stage - Storage Equation is of the form: S = (KsxZ)
Stage-- Discharge Relationship
Normal Water Surface Elev. = 366.0 feet
Water Surface Elev. (Q10) = 370.73 feet
Water Surface Elev. (Q25) = 370.80 feet
Water Surface Elev. (Q100) = 370.88 feet
Trimary Spillway
Barret-
Dia. of Barrel = 30 inches
Area of Barrel, (Ab) = 4.91 sf
Pipe Length, (L) = 60.0 feet
Friction Coeff., (Kp) = 0.00786
Inv. of Barrel = 366.00 feet
Riser
Elev. of Riser Crest = 370.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 1 0.0055
sA1311X000Zwaks%Wq9 printed 10/8/0011:33 AM
Page 2 of 14
The Preserve at Jordan Lake -EDD WQ# 9
Rectangular.
Length of Riser = 4 feet
Width of Riser = 4 feet
Weir Length = 16 feet
Area of Riser = 16 sq.ft.
Emergency Spillway
Width of Spillway (Approx.) _
Weir Coefficient -
Crest Elevation =
0 feet
3.0
0 feet
sA1311%0002%c*mA *P prided 1GM=11:33AM Page 3 of 14

Anflow 1g
Peak Inflow, (Qlo) => 33 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff
Vol= 77,429 cf (vol. of runoff
Time to Peak, (Tp) => 28.50 minutes
(SCS TR-55)
ftp 3L?Cl' t s
(ndm)
0.00 0.000 0 0.00
0.07 0.012 2 0.39
0.14 0.048 4 1.56
0.21 0.105 6 3.43
0.28 0.182 8 5.93
0.35 0.274 10 8.93
0.42 0.377 12 12.29
0.49 0.486 14 15.84
0.56 0.596 16 19.41
0.63 0.701 18 22.83
0.70 0.796 20 25.93
0.77 0.877 22 28.57
0.84 0.940 24 30.61
0.91 0.981 26 31.96
0.98 0.999 28 32.55
1.05 0.993 30 32.35
1.12 0.963 32 31.38
1.19 0.911 34 29.67
1.26 0.840 36 27.37
1.33 0.767 38 24.98
1.40 0.700 40 22.80
1.47 0.639 42 20.81
1.54 0.583 44 19.00
1.61 0.532 46 17.34
1.68 0.486 48 15.83
1.75 0.444 50 14.45
1.82 0.405 52 13.19
1.89 0.370 54 12.04
1.96 0.337 56 10.99
2.04 0.308 58 10.03
2.11 0.281 60 9.16
2.18 0.257 62 8.36
2.25 0.234 64 7.63
2.32 0.214 66 6.96
2.39 0.195 68 6.36
2.46 0.178 70 5.80
2.53 0.163 72 5.30
2.60 0.148 74 4.84
2.67 0.135 76 4.41
2.74 0.124 78 4.03
2.81 0.113 80 3.68
2.88 0.103 82 3.36
2.95 0.094 84 3.06
3.02 0.086 86 2.80
3.09 0.078 88 2.55
3.16 0.072 90 2.33
3.23 0.065 92 2.13
s:N311%00021eaks%VVg9 Ph 1018/0011:33 AM Page 4 of 14
3.30 0.060 94 1.94
3.37 0.054 96 1.77
3.44 0.050 98 1.62
3.51 0.045 100 1.48
3.58 0.041 102 1.35
3.65 0.038 104 1.23
3.72 0.034 106 1.12
3.79 0.031 108 1.03
3.86 0.029 110 0.94
3.93 0.026 112 0.85
4.00 0.024 114 0.78
4.07 0.022 116 0.71
4.14 0.020 118 0.65
4.21 0.018 120 0.59
4.28 0.017 122 0.54
435 0.015 124 0.49
4.42 0.014 126 0.45
4.49 0.013 128 0.41
4.56 0.012 130 0.38
4.63 0.011 132 0.34
4.70 0.010 134 0.31
4.77 0.009 136 0.29
4.84 0.008 138 0.26
4.91 0.007 140 0.24
4.98 0.007 142 0.22
5.05 0.006 144 0.20
5.12 0.006 146 0.18
5.19 0.005 148 0.17
5.26 0.005 150 0.15
5.33 0.004 152 0.14
5.40 0.004 154 0.13
5.47 0.004 156 0.11
5.54 0.003 158 0.10
5.61 0.003 160 0.10
5.68 0.003 162 0.09
5.75 0.002 164 0.08
5.82 0.002 166 0.07
5.89 0.002 168 0.07
5.96 0.002 170 0.06
6.04 0.002 172 0.06
6.11 0.002 174 0.05
6.18 0.001 176 0.05
sA1311\000'Llcaks%Wco prif 101810011:33 AM Page 5 of 14
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) cfs (cf) (ft) (cfs) 5cfs2 Scfs2
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.39 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.56 47 0.07 0.0 167.5 0.1 0.1 0.0 0.1
6.00 3.43 227 0.22 0.0 292.0 0.7 0.1 0.0 0.1
8.00 5.93 628 0.46 0.0 418.2 2.1 0.1 0.0 0.1
10.00 8.93 1323 0.78 0.0 544.5 4.6 0.2 0.0 0.2
12.00 12.29 2372 1.17 0.0 669.6 8.5 0.2 0.0 0.2
14.00 15.84 3820 1.64 0.0 792.6 14.1 0.3 0.0 0.3
16.00 19.41 5688 2.18 0.0 912.6 21.5 0.3 0.0 0.3
18.00 22.83 7980 2.77 0.0 1028.8 29.1 0.4 0.0 0.4
20.00 25.93 10678 3.40 0.0 1140.5 34.7 0.4 0.0 0.4
22.00 28.57 13743 4.07 1.0 1247.1 39.7 0.4 0.0 1.4
24.00 30.61 17006 4.73 33.0 1344.8 44.1 0.5 0.0 33.5
26.00 31.96 16662 4.66 28.5 1335.1 43.7 0.5 0.0 29.0
28.00 32.55 17019 4.73 33.2 1345.2 44.1 0.5 0.0 33.7
30.00 32.35 16886 4.71 31.4 1341.4 44.0 0.5 0.0 31.9
32.00 31.38 16941 4.72 32.2 1343.0 44.0 0.5 0.0 32.6
34.00 29.67 16792 4.69 30.2 1338.8 43.8 0.5 0.0 30.7
36.00 27.37 16673 4.67 28.7 1335.4 43.7 0.5 0.0 29.1
38.00 24.98 16462 4.62 26.0 1329.4 43.4 0.5 0.0 26.5
40.00 22.80 16284 4.59 23.8 1324.3 43.2 0.5 0.0 24.3
42.00 20.81 16107 4.55 21.7 1319.2 43.0 0.4 0.0 22.2
44.00 19.00 15946 4.52 19.8 1314.5 42.7 0.4 0.0 20.3
46.00 17.34 15792 4.49 18.1 1310.0 42.5 0.4 0.0 18.5
48.00 15.83 15648 4.46 16.5 1305.8 42.4 0.4 0.0 17.0
50.00 14.45 15513 4.43 15.1 1301.7 42.2 0.4 0.0 15.5
52.00 13.19 15386 4.41 13.7 1298.0 42.0 0.4 0.0 14.2
54.00 12.04 15267 4.38 12.5 1294.4 41.8 0.4 0.0 13.0
56.00 10.99 15154 4.36 11.4 1291.0 41.7 0.4 0.0 11.9
58.00 10.03 15049 4.34 10.4 1287.8 41.5 0.4 0.0 10.9
60.00 9.16 14949 4.32 9.5 1284.8 41.4 0.4 0.0 9.9
62.00 8.36 14856 4.30 8.7 1281.9 41.3 0.4 0.0 9.1
64.00 7.63 14768 4.28 7.9 1279.2 41.2 0.4 0.0 8.3
66.00 6.96 14685 4.26 7.2 1276.7 41.0 0.4 0.0 7.6
68.00 6.36 14607 4.25 6.5 1274.3 40.9 0.4 0.0 7.0
70.00 5.80 14533 4.23 5.9 1272.0 40.8 0.4 0.0 6.4
72.00 5.30 14464 4.22 5.4 1269.9 40.7 0.4 0.0 5.8
74.00 4.84 14399 4.21 4.9 1267.8 40.6 0.4 0.0 5.3
76.00 4.41 14337 4.19 4.5 1265.9 40.5 0.4 0.0 4.9
78.00 4.03 14279 4.18 4.1 1264.1 40.5 0.4 0.0 4.5
80.00 3.68 14224 4.17 3.7 1262.4 40.4 0.4 0.0 4.1
82.00 3.36 14172 4.16 3.3 1260.8 40.3 0.4 0.0 3.8
84.00 3.06 14124 4.15 3.0 1259.2 40.2 0.4 0.0 3.4
86.00 2.80 14078 4.14 2.7 1257.8 40.2 0.4 0.0 3.2
88.00 2.55 14034 4.13 2.5 1256.4 40.1 0.4 0.0 2.9
90.00 2.33 13993 4.12 2.2 1255.1 40.0 0.4 0.0 2.7
92.00 2.13 13954 4.11 2.0 1253.8 40.0 0.4 0.0 2.4
94.00 1.94 13917 4.11 1.8 1252.7 39.9 0.4 0.0 2.2
96.00 1.77 13882 4.10 1.6 1251.5 39.9 0.4 0.0 2.0
98.00 1.62 13849 4.09 1.5 1250.5 39.8 0.4 0.0 1.9
100.00 1.48 13818 4.08 1.3 1249.5 39.8 0.4 0.0 1.7
102.00 1.35 13788 4.08 1.2 1248.5 39.7 0.4 0.0 1.6
104.00 1.23 13760 4.07 1.0 1247.6 39.7 0.4 0.0 1.5
106.00 1.12 13733 4.07 0.9 1246.8 39.7 0.4 0.0 1.3
108.00 1.03 13707 4.06 0.8 1245.9 39.6 0.4 0.0 1.2
110.00 0.94 13683 4.06 0.7 1245.2 39.6 0.4 0.0 1.1
112.00 0.85 13659 4.05 0.6 1244.4 39.6 0.4 0.0 1.0
114.00 0.78 13637 4.05 0.5 1243.7 39.5 0.4 0.0 1.0
116.00 0.71 13616 4.04 0.5 1243.0 39.5 0.4 0.0 0.9
118.00 0.65 13595 4.04 0.4 1242.3 39.5 0.4 0.0 0.8
120.00 0.59 13576 4.03 0.3 1241.7 39.4 0.4 0.0 0.8
s:%itu^ twp 0.54 13557 4.03 A?2,a lww lizkk 1 39.4 0.4 0.0 Pa@e76 of 14
Pre
,The serve Jordan 11 i '
124.00 0.49 13538 4.03 0.2 1240.5 39.4 0.4 0.0 0.6
126.00 0.45 13520 4.02 0.2 1239.9 39.4 0.4 0.0 0.6
128.00 0.41 13503 4.02 0.1 1239.3 393 0.4 0.0 0.6
130.00 0.38 13486 4.01 0.1 1238.8 39.3 0.4 0.0 0.5
132.00 0.34 13469 4.01 0.1 1238.2 39.3 0.4 0.0 0.5
134.00 0.31 13452 4.01 0.0 1237.7 39.2 0.4 0.0 0.5
136.00 0.29 13434 4.00 0.0 1237.1 39.2 0.4 0.0 0.4
138.00 0.26 13416 4.00 0.0 1236.5 39.2 0.4 0.0 0.4
140.00 0.24 13397 4.00 0.0 1235.9 39.2 0.4 0.0 0.4
9:%131 IVM21calcsXwae 1xietect 10Il M II:33 AM Page 7 of 14

!The
Pre serve 1 1 WQ# '
142.00 0.22 13375 3.99 0.0 1235.2 39.1 0.4 0.0 0.4
144.00 0.20 13351 3.99 0.0 1234.4 39.1 0.4 0.0 0.4
146.00 0.18 13324 3.98 c; ..-010 1233.5 39.1 0.4 0.0 0.4
148.0 0.17 13295 3.97 0.0 f 232:6` - 3918 0.4 0.0 0.4
150.00 0.15 13265 '197 0.0 1231.6 39.0 0.4 0.0 0.4
152.00 0.14 13232 3.96 0.0 1230.5 38.9 0.4 0.0 0.4
154.00 0.13 13199 3.95 0.0 1229.4 38.9 0.4 0.0 0.4
156.00 0.11 13163 3.95 0.0 1228.2 38.8 0.4 0.0 0.4
158.00 0.10 13127 3.94 0.0 1227.0 38.8 0.4 0.0 0.4
160.00 0.10 13089 3.93 0.0 1225.8 38.7 0.4 0.0 0.4
162.00 0.09 13051 3.92 0.0 1224.5 38.6 0.4 0.0 0.4
164.00 0.08 13011 3.91 0.0 1223.2 38.6 0.4 0.0 0.4
166.00 0.07 12971 3.91 0.0 1221.8 38.5 0.4 0.0 0.4
168.00 0.07 12929 3.90 0.0 1220.4 38.5 0.4 0.0 0.4
170.00 0.06 12887 3.89 0.0 1219.0 38.4 0.4 0.0 0.4
172.00 0.06 12845 3.88 0.0 1217.6 38.3 0.4 0.0 0.4
174.00 0.05 12802 3.87 0.0 1216.2 38.3 0.4 0.0 0.4
176.00 0.05 12758 3.86 0.0 1214.7 38.2 0.4 0.0 0.4
Peak Inflow, (Q50) = 37 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in
Q*= 2.48 in. (depth of runoff
Vol= 101,894 cf (vol. of runoff
Time to Peak, (Tp) 32.68 minutes
(SCS TR-55)
VIR
QQP
t
Q
(min)
0.00 0.000 0.00 0.00
0.06 0.009 2.00 0.34
0.12 0.037 4.00 1.36
0.18 0.081 6.00 3.02
0.24 0.141 8.00 5.26
0.31 0.214 10.00 7.99
0.37 0.297 12.00 11.12
0.43 0.388 14.00 14.52
0.49 0.484 16.00 18.08
0.55 0.579 18.00 21.66
0.61 0.672 20.00 25.13
0.67 0.759 22.00 28.37
0.73 0.836 24.00 31.24
0.80 0.900 26.00 33.66
0.86 0.950 28.00 35.52
0.92 0.983 30.00 36.77
0.98 0.999 32.00 37.34
1.04 0.996 34.00 37.23
1.10 0.975 36.00 36.44
1.16 0.936 38.00 34.99
1.22 0.881 40.00 32.95
1.29 0.816 42.00 30.52
1.35 0.754 44.00 28.19
1.41 0.696 46.00 26.03
1.47 0.643 48.00 24.04
1.53 0.594 50.00 22.20
1.59 0.549 52.00 20.51
1.65 0.507 54.00 18.94
1.71 0.468 56.00 17.49
1.77 0.432 58.00 16.15
1.84 0.399 60.00 14.92
1.90 0.368 62.00 13.78
1.96 0.340 64.00 12.72
SA1311%OWZcakS%wg8 pmYed 10MM 11:33 AM
S=
2.66 in.
Page 8 of 14
Pre
,The serve Jordan 11 WQ# '
2.02 0.314 66.00 11.75
2.08 0.290 68.00 10.85
2.14 0.268 70.00 10.02
2.20 0.248 72.00 9.25
2.26 0.229 74.00 8.55
2.33 0.211 76.00 7.89
2.39 0.195 78.00 7.29
2.45 0.180 80.00 6.73
2.51 0.166 82.00 6.22
2.57 0.154 84.00 5.74
2.63 0.142 86.00 5.30
2.69 0.131 88.00 4.90
2.75 0.121 90.00 4.52
2.82 0.112 92.00 4.18
2.88 0.103 94.00 3.86
2.94 0.095 96.00 3.56
3.00 0.088 98.00 3.29
3.06 0.081 100.00 3.04
3.12 0.075 102.00 2.81
3.18 0.069 104.00 2.59
3.24 0.064 106.00 2.39
3.30 0.059 108.00 2.21
3.37 0.055 110.00 2.04
3.43 0.050 112.00 1.89
3.49 0.047 114.00 1.74
3.55 0.043 116.00 1.61
3.61 0.040 118.00 1.48
3.67 0.037 120.00 1.37
3.73 0.034 122.00 1.27
3.79 0.031 124.00 1.17
3.86 0.029 126.00 1.08
3.92 0.027 128.00 1.00
3.98 0.025 130.00 0.92
4.04 0.023 132.00 0.85
4.10 0.021 134.00 0.79
4.16 0.019 136.00 0.73
4.22 0.018 138.00 0.67
4.28 0.017 140.00 0.62
4.34 0.015 142.00 0.57
4.41 0.014 144.00 0.53
4.47 0.013 146.00 0.49
4.53 0.012 148.00 0.45
4.59 0.011 150.00 0.42
4.65 0.010 152.00 0.38
4.71 0.009 154.00 0.35
4.77 0.009 156.00 0.33
4.83 0.008 158.00 0.30
4.90 0.007 160.00 0.28

Storm Rou ting Table - 25-yr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE S'T'AGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(Dihi) (cfs) LCL ift-) (efs) (Cfi) isk2 iskZ (cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.34 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.36 41 0.07 0.0 159.6 0.1 0.1 0.0 0.1
6.00 3.02 199 0.20 0.0 278.3 0.6 0.1 0.0 0.1
8.00 5.26 550 0.42 0.0 399.1 1.8 0.1 0.0 0.1
10.00 7.99 1165 0.71 0.0 520.6 4.0 0.2 0.0 0.2
12.00 11.12 2103 1.08 0.0 641.6 7.5 0.2 0.0 0.2
14.00 14.52 3410 1.52 0.0 761.4 12.5 0.3 0.0 0.3
16.00 18.08 5122 2.02 0.0 879.3 19.3 0.3 0.0 0.3
18.00 21.66 7255 2.59 0.0 994.7 27.3 0.3 0.0 0.3
20.00 25.13 9814 3.21 0.0 1106.9 33.1 0.4 0.0 0.4
s:?1 +wqe 28.37 12794 3.87 Aad imm 112"6 38.2 0.4 0.0 PAQ649 of 14
24.00 31.24 16138 4.56 22.1 1320.1 43.0 0.4 0.0 22.5
26.00 33.66 17184 4.77 35.4 1349.8 44.3 0.5 0.0 35.9
28.00 35.52 16917 4.71 31.8 1342.3 44.0 0.5 0.0 32.3
30.00 36.77 17304 4.79 37.1 1353.1 44.5 0.5 0.0 37.5
32.00 37.34 17212 4.77 35.8 1350.5 44.4 0.5 0.0 36.3
34.00 37.23 17341 4.80 37.6 1354.1 44.5 0.5 0.0 38.0
36.00 36.44 17244 4.78 36.2 1351.4 44.4 0.5 0.0 36.7
38.00 34.99 17212 4.77 35.8 1350.5 44.4 0.5 0.0 36.3
40.00 32.95 17059 4.74 33.7 1346.3 44.2 0.5 0.0 34.2
42.00 30.52 16909 4.71 31.7 1342.1 44.0 0.5 0.0 32.2
44.00 28.19 16708 4.67 29.1 1336.4 43.7 0.5 0.0 29.6
46.00 26.03 16541 4.64 27.0 1331.7 43.5 0.5 0.0 27.5
48.00 24.04 16371 4.61 24.9 1326.8 43.3 0.5 0.0 25.3
50.00 22.20 16216 4.57 23.0 1322.3 43.1 0.5 0.0 23.5
52.00 20.51 16066 4.54 21.2 1318.0 42.9 0.4 0.0 21.7
54.00 18.94 15926 4.52 19.6 1313.9 42.7 0.4 0.0 20.0
56.00 17.49 15792 4.49 18.1 1310.0 42.5 0.4 0.0 18.5
58.00 16.15 15666 4.46 16.7 1306.3 42.4 0.4 0.0 17.1
60.00 14.92 15546 4.44 15.4 1302.7 42.2 0.4 0.0 15.9
62.00 13.78 15433 4.42 14.2 1299.4 42.1 0.4 0.0 14.7
64.00 12.72 15326 4.40 13.1 1296.2 41.9 0.4 0.0 13.6
66.00 11.75 15224 4.37 12.1 1293.1 41.8 0.4 0.0 12.6
68.00 10.85 15128 4.36 11.2 1290.2 41.6 0.4 0.0 11.6
70.00 10.02 15036 4.34 10.3 1287.4 41.5 0.4 0.0 10.7
72.00 9.25 14950 4.32 9.5 1284.8 41.4 0.4 0.0 9.9
74.00 8.55 14867 4.30 8.8 1282.3 41.3 0.4 0.0 9.2
76.00 7.89 14789 4.29 8.1 1279.9 41.2 0.4 0.0 8.5
78.00 7.29 14715 4.27 7.4 1277.6 41.1 0.4 0.0 7.9
80.00 6.73 14645 4.26 6.9 1275.5 41.0 0.4 0.0 7.3
82.00 6.22 14579 4.24 6.3 1273.4 40.9 0.4 0.0 6.7
84.00 5.74 14516 4.23 5.8 1271.5 40.8 0.4 0.0 6.2
86.00 5.30 14456 4.22 5.3 1269.6 40.7 0.4 0.0 5.8
88.00 4.90 14399 4.21 4.9 1267.8 40.6 0.4 0.0 5.3
90.00 4.52 14344 4.19 4.5 1266.1 40.6 0.4 0.0 5.0
92.00 4.18 14293 4.18 4.2 1264.5 40.5 0.4 0.0 4.6
94.00 3.86 14244 4.17 3.8 1263.0 40.4 0.4 0.0 4.2
96.00 3.56 14198 4.16 3.5 1261.5 40.3 0.4 0.0 3.9
98.00 3.29 14154 4.15 3.2 1260.2 40.3 0.4 0.0 3.6
100.00 3.04 14111 4.15 2.9 1258.8 40.2 0.4 0.0 3.4
102.00 2.81 14072 4.14 2.7 1257.6 40.2 0.4 0.0 3.1
104.00 2.59 14033 4.13 2.5 1256.4 40.1 0.4 0.0 2.9
106.00 2.39 13997 4.12 2.3 1255.2 40.1 0.4 0.0 2.7
108.00 2.21 13963 4.11 2.1 1254.1 40.0 0.4 0.0 2.5
110.00 2.04 13930 4.11 1.9 1253.1 40.0 0.4 0.0 2.3
112.00 1.89 13899 4.10 1.7 1252.1 39.9 0.4 0.0 2.1
114.00 1.74 13869 4.10 1.6 1251.1 39.9 0.4 0.0 2.0
116.00 1.61 13840 4.09 1.4 1250.2 39.8 0.4 0.0 1.8
118.00 1.48 13813 4.08 1.3 1249.3 39.8 0.4 0.0 1.7
120.00 1.37 13787 4.08 1.2 1248.5 39.7 0.4 0.0 1.6
122.00 1.27 13762 4.07 1.0 1247.7 39.7 0.4 0.0 1.5
124.00 1.17 13738 4.07 0.9 1246.9 39.7 0.4 0.0 1.4
126.00 1.08 13715 4.06 0.8 1246.2 39.6 0.4 0.0 1.3
128.00 1.00 13693 4.06 0.7 1245.5 39.6 0.4 0.0 1.2
130.00 0.92 13672 4.05 0.7 1244.8 39.6 0.4 0.0 1.1
132.00 0.85 13652 4.05 0.6 1244.2 39.5 0.4 0.0 1.0
134.00 0.79 13633 4.05 0.5 1243.5 39.5 0.4 0.0 0.9
136.00 0.73 13614 4.04 0.5 1242.9 39.5 0.4 0.0 0.9
138.00 0.67 13596 4.04 0.4 1242.4 39.5 0.4 0.0 0.8
140.00 0.62 13578 4.03 0.3 1241.8 39.4 0.4 0.0 0.8
142.00 0.57 13562 4.03 0.3 1241.2 39.4 0.4 0.0 0.7
144.00 0.53 13545 4.03 0.2 1240.7 39.4 0.4 0.0 0.7
146.00 0.49 13529 4.02 0.2 1240.2 39.4 0.4 0.0 0.6
148.00 0.45 13513 4.02 0.2 1239.7 39.3 0.4 0.0 0.6
150.00 0.42 13498 4.02 0.1 1239.2 39.3 0.4 0.0 0.5
152.00 0.38 13482 4.01 0.1 1238.7 39.3 0.4 0.0 0.5
154.00 0.35 13467 4.01 0.1 1238.2 39.3 0.4 0.0 0.5
s.,MUOzw,,6,xwo 0.33 13452 4.01 919. low ?, ;3Z7 39.2 0.4 0.0 PegVO of 14
158.00 0.30 13436 4.00 0.0 1237.2 39.2 0.4 0.0
160.00 0.28 13420 4.00 0.0 1236.6 39.2 0.4 0.0
Peak Inflow, (Q100) = 44 efs
Time to Peak Calculation: CN= 79 P= 5.75 in
Q*= 3.46 in. (depth of runott)
Vol= 142,189 cf (vol. of ranoft)
Time to Peak, (Tp) 39.07 minutes
(SCS TR-55)
Utp Q/QP t Q
(mum) (SQS
0.00 0.000 0.00 0.00
0.06 0.006 2.00 0.28
0.12 0.026 4.00 1.12
0.18 0.057 6.00 2.49
0.24 0.100 8.00 4.36
0.31 0.153 10.00 6.68
0.37 0.215 12.00 9.39
0.43 0.285 14.00 12.42
0.49 0.360 16.00 15.70
0.55 0.438 18.00 19.13
0.61 0.519 20.00 22.63
0.67 0.598 22.00 26.11
0.73 0.676 24.00 29.48
0.80 0.748 26.00 32.65
0.86 0.815 28.00 35.55
0.92 0.873 30.00 38.08
0.98 0.921 32.00 40.20
1.04 0.959 34.00 41.85
1.10 0.985 36.00 42.97
1.16 0.998 38.00 43.55
1.22 0.999 40.00 43.57
1.29 0.986 42.00 43.03
1.35 0.961 44.00 41.94
1.41 0.924 46.00 40.34
1.47 0.877 48.00 38.25
1.53 0.822 50.00 35.88
1.59 0.769 52.00 33.57
1.65 0.720 54.00 31.41
1.71 0.673 56.00 29.39
1.77 0.630 58.00 27.49
1.84 0.590 60.00 25.72
1.90 0.552 62.00 24.07
1.96 0.516 64.00 22.52
2.02 0.483 66.00 21.07
2.08 0.452 68.00 19.71
2.14 0.423 70.00 18.44
2.20 0.395 72.00 17.26
2.26 0.370 74.00 16.14
2.33 0.346 76.00 15.11
2.39 0.324 78.00 14.13
2.45 0.303 80.00 13.22
2.51 0.284 82.00 12.37
2.57 0.265 84.00 11.58
2.63 0.248 86.00 10.83
2.69 0.232 88.00 10.13
2.75 0.217 90.00 9.48
2.82 0.203 92.00 8.87
2.88 0.190 94.00 8.30
s:1311V=21eakMWcO prirded tGMM 11:33 AM
S=
2.66 in.
0.4
0.4
Page 11 of 14
2.94 0.178 96.00 7.76
3.00 0.166 98.00 7.26
3.06 0.156 100.00 6.80
3.12 0.146 102.00 6.36
3.18 0.136 104.00 5.95
3.24 0.128 106.00 5.57
3.30 0.119 108.00 5.21
3.37 0.112 110.00 4.87
3.43 0.104 112.00 4.56
3.49 0.098 114.00 4.27
3.55 0.091 116.00 3.99
3.61 0.086 118.00 3.73
3.67 0.080 120.00 3.49
3.73 0.075 122.00 3.27
3.79 0.070 124.00 3.06
3.86 0.066 126.00 2.86
3.92 0.061 128.00 2.68
3.98 0.057 130.00 2.51
4.04 0.054 132.00 2.34
4.10 0.050 134.00 2.19
4.16 0.047 136.00 2.05
4.22 0.044 138.00 1.92
4.28 0.041 140.00 1.80
4.34 0.039 142.00 1.68
4.41 0.036 144.00 1.57
4.47 0.034 146.00 1.47
4.53 0.032 148.00 1.38
4.59 0.030 150.00 1.29
4.65 0.028 152.00 1.20
4.71 0.026 154.00 1.13
4.77 0.024 156.00 1.05
4.83 0.023 158.00 0.99
4.90 0.021 160.00 0.92
4.96 0.020 162.00 0.86
5.02 0.019 164.00 0.81
5.08 0.017 166.00 0.76
5.14 0.016 168.00 0.71
sA1311VXKOaaleslwye r,o-ted 101=011:33 AM Page 12 of 14
Pre
:The serve it i• '
Storm Rou ting
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (Cfs) LCIL fm (cfs) (Cfs) !`?? (Cfs) fS&1
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.28 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.12 34 0.06 0.0 148.7 0.1 0.1 0.0 0.1
6.00 2.49 162 0.18 0.0 258.9 0.5 0.1 0.0 0.1
8.00 4.36 450 0.36 0.0 371.8 1.5 0.1 0.0 0.1
10.00 6.68 958 0.62 0.0 485.8 3.2 0.2 0.0 0.2
12.00 9.39 1740 0.94 0.0 600.0 6.1 0.2 0.0 0.2
14.00 12.42 2843 1.33 0.0 713.9 10.3 0.2 0.0 0.2
16.00 15.70 4304 1.79 0.0 826.8 16.0 0.3 0.0 0.3
18.00 19.13 6154 2.30 0.0 938.4 23.4 0.3 0.0 0.3
20.00 22.63 8412 2.87 0.0 1048.2 30.1 0.4 0.0 0.4
22.00 26.11 11085 3.49 0.0 1155.7 35.4 0.4 0.0 0.4
24.00 29.48 14171 4.16 3.3 1260.7 40.3 0.4 0.0 3.8
26.00 32.65 17258 4.78 36.4 1351.8 44.4 0.5 0.0 36.9
28.00 35.55 16749 4.68 29.6 1337.5 43.8 0.5 0.0 30.1
30.00 38.08 17402 4.81 38.4 1355.8 44.6 0.5 0.0 38.9
32.00 40.20 17305 4.79 37.1 1353.1 44.5 0.5 0.0 37.5
34.00 41.85 17624 4.85 41.6 1361.9 44.9 0.5 0.0 42.0
36.00 42.97 17603 4.85 41.3 1361.3 44.8 0.5 0.0 41.7
38.00 43.55 17753 4.88 43.4 1365.4 45.0 0.5 0.0 43.9
40.00 43.57 17715 4.87 42.9 1364.4 45.0 0.5 0.0 43.3
42.00 43.03 17745 4.88 43.3 1365.2 45.0 0.5 0.0 43.8
44.00 41.94 17658 4.86 42.0 1362.8 44.9 0.5 0.0 42.5
46.00 40.34 17590 4.85 41.1 1361.0 44.8 0.5 0.0 41.5
48.00 38.25 17446 4.82 39.0 1357.0 44.6 0.5 0.0 39.5
50.00 35.88 17296 4.79 37.0 1352.8 44.5 0.5 0.0 37.4
52.00 33.57 17111 4.75 34.4 1347.7 44.2 0.5 0.0 34.9
54.00 31.41 16952 4.72 32.3 1343.3 44.0 0.5 0.0 32.8
56.00 29.39 16789 4.69 30.2 1338.7 43.8 0.5 0.0 30.6
58.00 27.49 16640 4.66 28.3 1334.5 43.6 0.5 0.0 28.7
60.00 25.72 16495 4.63 26.4 1330.3 43.5 0.5 0.0 26.9
62.00 24.07 16357 4.60 24.7 1326.4 43.3 0.5 0.0 25.2
64.00 22.52 16225 4.58 23.1 1322.6 43.1 0.5 0.0 23.6
66.00 21.07 16100 4.55 21.6 1319.0 42.9 0.4 0.0 22.1
68.00 19.71 15979 4.53 20.2 1315.5 42.8 0.4 0.0 20.7
70.00 18.44 15865 4.50 18.9 1312.1 42.6 0.4 0.0 19.4
72.00 17.26 15755 4.48 17.7 1308.9 42.5 0.4 0.0 18.1
74.00 16.14 15650 4.46 16.5 1305.8 42.4 0.4 0.0 17.0
76.00 15.11 15550 4.44 15.5 1302.8 42.2 0.4 0.0 15.9
78.00 14.13 15455 4.42 14.5 1300.0 42.1 0.4 0.0 14.9
80.00 13.22 15363 4.40 13.5 1297.3 42.0 0.4 0.0 14.0
82.00 12.37 15276 4.39 12.6 1294.7 41.9 0.4 0.0 13.1
84.00 11.58 15192 4.37 11.8 1292.1 41.7 0.4 0.0 12.2
86.00 10.83 15112 4.35 11.0 1289.7 41.6 0.4 0.0 11.5
88.00 10.13 15036 4.34 10.3 1287.4 41.5 0.4 0.0 10.7
90.00 9.48 14963 4.32 9.6 1285.2 41.4 0.4 0.0 10.1
92.00 8.87 14893 4.31 9.0 1283.1 41.3 0.4 0.0 9.4
94.00 8.30 14826 4.29 8.4 1281.0 41.2 0.4 0.0 8.8
96.00 7.76 14762 4.28 7.8 1279.1 41.1 0.4 0.0 8.3
98.00 7.26 14701 4.27 7.3 1277.2 41.1 0.4 0.0 7.8
100.00 6.80 14643 4.26 6.8 1275.4 41.0 0.4 0.0 7.3
102.00 6.36 14586 4.24 6.4 1273.7 40.9 0.4 0.0 6.8
104.00 5.95 14533 4.23 5.9 1272.0 40.8 0.4 0.0 6.4
106.00 5.57 14481 4.22 5.5 1270.4 40.8 0.4 0.0 6.0
108.00 5.21 14432 4.21 5.2 1268.9 40.7 0.4 0.0 5.6
110.00 4.87 14385 4.20 4.8 1267.4 40.6 0.4 0.0 5.2
112.00 4.56 14340 4.19 4.5 1266.0 40.5 0.4 0.0 4.9
114.00 4.27 14297 4.18 4.2 1264.7 40.5 0.4 0.0 4.6
116.00 3.99 14255 4.18 3.9 1263.4 40.4 0.4 0.0 4.3
118.00 3.73 14216 4.17 3.6 1262.1 40.4 0.4 0.0 4.1
120.00 3.49 14178 4.16 3.4 1260.9 40.3 0.4 0.0 3.8
sftiU scmwg9 3.27 14141 4.15 RAO& IMM001i316&8 40.3 0.4 0.0 Pao.63 of 14
Pre
The serve Jordan 1/ i '
124.00 3.06 14106 4.14 2.9 1258.7 40.2 0.4 0.0 3.3
126.00 2.86 14073 4.14 2.7 1257.6 40.2 0.4 0.0 3.1
128.00 2.68 14040 4.13 2.5 1256.6 40.1 0.4 0.0 2.9
130.00 2.51 14010 4.12 2.3 1255.6 40.1 0.4 0.0 2.8
132.00 2.34 13980 4.12 2.2 1254.7 40.0 0.4 0.0 2.6
134.00 2.19 13951 4.11 2.0 1253.8 40.0 0.4 0.0 2.4
136.00 2.05 13924 4.11 1.8 1252.9 39.9 0.4 0.0 2.3
138.00 1.92 13898 4.10 1.7 1252.0 39.9 0.4 0.0 2.1
140.00 1.80 13872 4.10 1.6 1251.2 39.9 0.4 0.0 2.0
142.00 1.68 13848 4.09 1.4 1250.5 39.8 0.4 0.0 1.9
144.00 1.57 13825 4.09 1.3 1249.7 39.8 0.4 0.0 1.8
146.00 1.47 13802 4.08 1.2 1249.0 39.8 0.4 0.0 1.7
148.00 1.38 13781 4.08 1.1 1248.3 39.7 0.4 0.0 1.6
150.00 1.29 13760 4.07 1.0 1247.6 39.7 0.4 0.0 1.5
152.00 1.20 13740 4.07 0.9 1247.0 39.7 0.4 0.0 1.4
154.00 1.13 13720 4.06 0.9 1246.4 39.6 0.4 0.0 1.3
156.00 1.05 13702 4.06 0.8 1245.8 39.6 0.4 0.0 1.2
158.00 0.99 13683 4.06 0.7 1245.2 39.6 0.4 0.0 1.1
160.00 0.92 13666 4.05 0.6 1244.6 39.6 0.4 0.0 1.1
162.00 0.86 13649 4.05 0.6 1244.1 39.5 0.0 0.6
164.00 0.81 13683 4.06 0.7 1245.2 39.6 0.0 0.7
166.00 0.76 13695 4.06 0.8 1245.6 39.6 0.0 0.8
168.00 0.71 13695 4.06 0.8 1245.6 39.6 0.0 0.8
sA1311%0002%caWs%Wg9 printed 1019/0011.33 AM Page 14 of 14
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #9

FLOTATION OF RISER

RISER DIMENSIONS
Inside Dimensions
Width =
Length =
4.0 feet
4.0 feet

ELEV. TOROF RISER =
ELEV. BOT. OF RISER =
H= 370.00
366.00
4.00 ft
-
AREA OF RISER = 16.0 SF
VOLUME OF RISER = 64.0 Cubic Feet

DIAMETER OF BARREL = 30 Inch
AREA OF BARREL = 4.9 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 29.5 Cubic Feet

WEIGHT OF WATER DISPLACED = 5831.43 lb
6414
57 lb
FACTOR OF SAFETY (10%) .

VOLUME OF CONCRETE ANCHOR = 73.2 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
4'
4'
Inside Dimension x
Weight of Concrete 5175 lb

ANIT-FLOTATION WEIGHT REQUIRED = 1240 lb
t
F
ANIT-FLOTATION VOLUME REQUIRED = ee
14.2 Cubic

ANTI-FLOTATION PAD REQUIRED
DEPTH = 1.00 ft
WIDTH = 6.00 It
LENGTH= 6.00 ft

EE UME PROVIDED = 36.0 Cubic Feet

O, USE CONCRETE PAD 1'x6'x6'

I
FES AT PERMANENT WATER QUALITY POND 99
flow Q in cfs : 44.5 Flow depth (ft) = 1.17
slope S in ft/ft :.05 Outlet velocity (fps) = 19.679
pipe diameter D in ft : 2.5
Manning number n :.012
ZONE 6
For a pipe diameter of 2.50 feet and
an outlet velocity of 19.679 feet per second:
The recommended apron length is 30.00 feet.
The maximum stone diameter is 50.7 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 23 2 30

IMPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #10
# Lots s.f./Lot Total
3 6,500 19,500
Roadways - s.f.
Lots (houses, drives, etc.) 19,500 s.f.
Golf Cart Paths 4,240 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 23,740 s.f.
Total Area = 4.88 ac.
Impervious Area = 0.54 ac.
Impervious Percentage = 11.2%
The storage volume for the 1" storm (Schueler Method) would be:
Rv = .05+.009 (1)
RV= 0.151
Volume = (Design Rainfall) " (RV)'(Drainage Area)
Volume = 0.06132533 ac.ft
2,671 cf
2,671 c.f. storage required.
3,206 c.f. required Including an additional 20% for sediment storage
3,803 c.f. storage provided
==ftorage Provided
Incremental Total
Elev. Area (s.f.) Volume (c.f.) Volume (c.f.) Depth (ft.)
410 652
2,104 2,104
412 1,452 2
1,699 3,803
413 1,945 3
Drawdown calculation
Orifice required for 2-5 Day Drawdown
3.0 feet of storage so, say 1.5 feet of average head
Using a 3/4" orifice Q2-day= 3,125
Q = 0.02 cis Q5-day= 7,812
So, a 3/4" Orifice will drawdown pond in 2.43 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The Preserve at Jordan Lake - ED D !• 1
DESIGN REQUIREMENTS:
A Pond Routing - Store V inch of impervious runoff.
'Post-De-velopment Runoff 0-y r
Drainage Area, (DA) = 4.88 acres
Overland Flow
Elevation of most remote point, (Hl) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (HI) = 480.0 feet
Elevation of point of design, (112) = 410.0 feet
Length of travel, (L) = 710.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 3.0 minutes
Pipe Flow
Elevation of most remote point, (H 1) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (TO 5.0 minutes
Intensity, (I) = 7.22 inches/hr
Area 1 (Impervious) = 0.54 acres
Area 2 (Pervious) = 4.34 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) _> 0.28
Peak Release Rate, (QIO) _> 10 cfs
Post-Development Runoff - 25-yr
Drainage Area, (DA) = 4.88 acres
Time of Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) _> 0.28
Peak Release Rate, (Q7,5) _> 11 cfs
Post-Development Runoff 100-yr
Drainage Area, (DA) = 4.88 acres
Time of Concentration, (TO _>
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Q100) _>
5.0 minutes
9.67 inches
0.28
13 cfs
s:%1311Mooo2%caksWV00 puked 10MM 1:47 PM Page 1 of 13
;The Pr eserve at Jordan L ake - 1 1 Q- 1
'
:
-Stage --s torage-Func tion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cfl (ft) In (S) In (Z) Z est

410 652 -
412 1,452 2,104 2,104 2.00 7.65 0.69 2.00
414.0 2,494 3,946 6,050 4.00 8.71 1.39 4.00
Check
Stage Storage
1 732
3 3,903
5 8,500
Regression Output:
b° 1.52 (X Variable Coed
K 732 (eY"°`°"°p`)
Stage - Storage Equation is of the form: S = (KsXZ)
Bottom Dry Pond Elevation
410.0 feet
Water Surface Elev. (Qla) _ 4 i i feet -11. 5 Water Surface Elev. (Qu) _ 413M feet
Water Surface Elev. (Q100) _ 414.2 feet
Barrel
Dia. of Barrel = 15 inches
Area of Barrel, (Ab) = 1.23 sf
Pipe Length, (L) = 48.0 feet
Friction Coe$:, (Kp) = 0.01980
Inv. of Barrel = 410.00 feet
Riser
Elev. of Riser Crest = 413.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. R
Water Quality Orifice 0.75 " 0.0031
s:%1311%0002%caI.s%WgI0 prhked 1019M 1:47 PM Page 2 of 13
The Preserve at Jordan Lake - EDD WQ# 10
Rectangular.
Length of Riser = 2 feet
Width of Riser = 2 feet
Weir Length = 8 feet
Area of Riser = 4 sq.ft.
Width of Spillway (Approx.) = 5 feet
Weir Coefficient 3.0
Crest Elevation = 414 feet
s:N31IVXK 1cabsWVglo Rnted 1OMM t:ar PM Page 3 of 13
1/ WQ# i
:The Preserve at Jordan Lake - Inflow Hvd io 1
Peak Inflow, (Qlo) 10 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*- 1.88 in. (depth of runoff
Vol= 33,350 cf (vol. of runoff
Time to Peak, (TO 40.09 minutes
(SCS TR-55)
Q Q2 t s
(nda)
0.00 0.000 0 0.00
0.05 0.006 2 0.06
0.07 0.014 3 0.14
0.10 0.024 4 0.24
0.12 0.038 5 0.38
0.15 0.054 6 0.54
0.17 0.073 7 0.73
0.20 0.095 8 0.95
0.22 0.119 9 1.19
0.25 0.146 10 1.45
0.27 0.175 11 134
0.30 0.205 12 2.05
0.32 0.238 13 2.37
0.35 0.272 14 2.71
0.37 0.307 15 3.07
0.40 0.344 16 3.43
0.42 0.382 17 3.81
0.45 0.420 18 4.19
0.47 0.459 19 4.58
0.50 0.498 20 4.97
0.52 0.537 21 5.36
0.55 0.576 22 5.75
0.57 0.615 23 6.13
0.60 0.652 24 6.51
0.62 0.689 25 6.87
0.65 0.725 26 7.23
0.67 0.759 27 7.57
0.70 0.792 28 7.90
0.72 0.823 29 8.21
0.75 0.852 30 8.49
0.77 0.878 31 8.76
0.80 0.903 32 9.00
0.82 0.925 33 9.22
0.85 0.944 34 9.42
0.87 0.961 35 9.58
0.90 0.975 36 9.72
0.92 0.985 37 9.83
0.95 0.993 38 9.91
0.97 0.998 39 9.96
1.00 1.000 40 9.97
1.02 0.999 41 9.96
1.05 0.994 42 9.92
1.07 0.987 43 9.84
1.10 0.977 44 9.74
1.12 0.963 45 9.61
1.15 0.947 46 9.45
1.17 0.929 47 9.26
1.20 0.907 48 9.05
1.22 0.883 49 8.81
1.25 0.857 50 8.54
1.27 0.830 51 8.28
1.30 0.804 52 8.02
9:Y1311WW2%ea1os1Wg10 printed 10M=1:47 PM
Page 4 of 13
1.32 0.778 53 7.76
1.35 0.753 54 7.51
1.37 0.729 55 7.28
1.40 0.706 56 7.04
1.42 0.684 57 6.82
1.45 0.662 58 6.60
1.47 0.641 59 6.39
1.50 0.620 60 6.19
1.52 0.600 61 5.99
1.55 0.581 62 5.80
1.57 0.563 63 5.61
1.60 0.545 64 5.43
1.62 0.527 65 5.26
1.65 0.511 66 5.09
1.67 0.494 67 4.93
1.70 0.479 68 4.77
1.72 0.463 69 4.62
1.75 0.448 70 4.47
1.77 0.434 71 4.33
1.80 0.420 72 4.19
1.82 0.407 73 4.06
1.85 0.394 74 3.93
1.87 0.381 75 3.80
1.90 0.369 76 3.68
1.92 0.357 77 3.56
1.95 0.346 78 3.45
1.97 0.335 79 3.34
2.00 0.324 80 3.23
2.02 0.314 81 3.13
2.05 0.304 82 3.03
2.07 0.294 83 2.93
2.10 0.285 84 2.84
2.12 0.276 85 2.75
2.15 0.267 86 2.66
2.17 0.258 87 2.58
2.19 0.250 88 2.50
2.22 0.242 89 2.42
sAl 311%0002%aksMgi0 pfifdeft 10/8100 1:47 PM Page 5 of 13
Pre
The serve it WQ# I
Storm Ro
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ffliu) (cfs) LCL im ? (cfs) (cs) WS) (cfs) isLsl
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.06 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
3.00 0.14 7 0.05 0.0 34.1 0.0 0.0 0.0 0.0
4.00 0.24 14 0.07 0.0 42.2 0.1 0.0 0.0 0.0
5.00 0.38 27 0.11 0.0 52.1 0.1 0.0 0.0 0.0
6.00 0.54 47 0.16 0.0 62.7 0.2 0.0 0.0 0.0
7.00 0.73 76 0.23 0.0 73.7 0.4 0.1 0.0 0.1
8.00 0.95 117 0.30 0.0 84.7 0.6 0.1 0.0 0.1
9.00 1.19 170 0.38 0.0 95.7 0.8 0.1 0.0 0.1
10.00 1.45 237 0.48 0.0 106.8 1.1 0.1 0.0 0.1
11.00 1.74 319 0.58 0.0 117.7 1.5 0.1 0.0 0.1
12.00 2.05 418 0.69 0.0 128.7 1.9 0.1 0.0 0.1
13.00 2.37 535 0.81 0.0 139.5 2.5 0.1 0.0 0.1
14.00 2.71 671 0.94 0.0 150.2 3.1 0.1 0.0 0.1
15.00 3.07 827 1.08 0.0 160.9 3.8 01 0.0 0.1
16.00 3.43 1003 1.23 0.0 171.4 4.6 0.1 0.0 0.1
17.00 3.81 1201 1.38 0.0 181.9 5.2 0.1 0.0 0.1
18.00 4.19 1422 1.55 0.0 192.2 5.7 0.1 0.0 0.1
19.00 4.58 1664 1.71 0.0 202.4 6.2 0.2 0.0 0.2
20.00 4.97 1930 1.89 0.0 212.5 6.6 0.2 0.0 0.2
21.00 5.36 2218 2.07 0.0 222.4 7.1 0.2 0.0 0.2
22.00 5.75 2529 2.26 0.0 232.2 7.5 0.2 0.0 0.2
23.00 6.13 2863 2.45 0.0 241.8 8.0 0.2 0.0 0.2
24.00 6.51 3220 2.64 0.0 251.3 8.4 0.2 0.0 0.2
25.00 6.87 3599 2.84 0.0 260.7 8.8 0.2 0.0 0.2
26.00 7.23 4000 3.05 0.3 269.9 91 0.2 0.0 0.5
27.00 7.57 4404 3.25 3.3 278.5 9.6 0.2 0.0 3.5
28.00 7.90 4650 3.37 5.8 283.6 9.8 0.2 0.0 6.1
29.00 8.21 4761 3.42 7.1 285.7 9.9 0.2 0.0 7.4
30.00 8.49 4812 3.44 7.8 286.8 9.9 0.2 0.0 8.0
31.00 8.76 4843 3.46 8.1 287.4 9.9 0.2 0.0 8.4
32.00 9.00 4867 3.47 8.4 287.8 10.0 0.2 0.0 8.7
33.00 9.22 4887 3.48 8.7 288.2 10.0 0.2 0.0 8.9
34.00 9.42 4905 3.49 8.9 288.6 10.0 0.2 0.0 9.2
35.00 9.58 4921 3.49 9.1 288.9 10.0 0.2 0.0 9.4
36.00 9.72 4934 3.50 9.3 289.1 10.0 0.2 0.0 9.5
37.00 9.83 4946 3.50 9.5 289.3 10.0 0.2 0.0 9.7
38.00 9.91 4955 3.51 9.6 289.5 10.0 0.2 0.0 9.8
39.00 9.96 4961 3.51 9.7 289.6 10.0 0.2 0.0 9.9
40.00 9.97 4965 3.51 9.7 289.7 10.0 0.2 0.0 9.9
41.00 9.96 4967 3.51 9.7 289.8 10.0 0.2 0.0 10.0
42.00 9.92 4967 3.51 9.7 289.7 10.0 0.2 0.0 10.0
43.00 9.84 4964 3.51 9.7 289.7 10.0 0.2 0.0 9.9
44.00 9.74 4960 3.51 9.6 289.6 10.0 0.2 0.0 9.9
45.00 9.61 4952 3.51 9.5 289.5 10.0 0.2 0.0 9.8
46.00 9.45 4943 3.50 9.4 289.3 10.0 0.2 0.0 9.6
47.00 9.26 4931 3.50 93 289.1 10.0 0.2 0.0 9.5
48.00 9.05 4917 3.49 9.1 288.8 10.0 0.2 0.0 9.3
49.00 8.81 4901 3.48 8.9 288.5 10.0 0.2 0.0 9.1
50.00 8.54 4884 3.48 8.7 288.1 10.0 0.2 0.0 8.9
51.00 8.28 4864 3.47 8.4 287.8 10.0 0.2 0.0 8.6
52.00 8.02 4843 3.46 8.1 287.4 9.9 0.2 0.0 8.4
53.00 7.76 4822 3.45 7.9 287.0 9.9 0.2 0.0 8.1
54.00 7.51 4802 3.44 7.6 286.5 9.9 0.2 0.0 7.9
55.00 7.28 4782 3.43 7.4 286.2 9.9 0.2 0.0 7.6
56.00 7.04 4762 3.42 7.1 285.8 9.9 0.2 0.0 7.4
57.00 6.82 4743 3.41 6.9 285.4 9.9 0.2 0.0 7.1
58.00 6.60 4724 3.40 6.7 285.0 9.8 0.2 0.0 6.9
59.00 6.39 4705 3.39 6.5 284.6 9.8 0.2 0.0 6.7
60.00 6.19 4687 3.38 6.3 2843 9.8 0.2 0.0 6.5
61.00 5.99 4670 3.37 6.1 283.9 9.8 0.2 0.0 6.3
s:%fa2i06bzwws%wqic5.80 4652 3.37 549rted iom=2.33e6i 9.8 0.2 0.0 614ge 6 of 13
Pre serve 11 WQ# i
63.00 5.61 4636 3.36 5.7 283.3 9.8 0.2 0.0 5.9
64.00 5.43 4619 3.35 5.5 282.9 9.8 02 0.0 5.7
65.00 5.26 4603 3.34 5.3 282.6 9.7 0.2 0.0 5.5
66.00 5.09 4587 3.34 5.1 282.3 9.7 0.2 0.0 5.3
67.00 4.93 4572 3.33 5.0 282.0 9.7 0.2 0.0 5.2
68.00 4.77 4557 3.32 4.8 281.7 9.7 0.2 0.0 5.0
69.00 4.62 4542 3.31 4.6 281.4 9.7 0.2 0.0 4.9
70.00 4.47 4528 3.31 4.5 281.1 9.7 0.2 0.0 4.7
71.00 4.33 4513 3.30 4.3 280.8 9.7 0.2 0.0 4.6
72.00 4.19 4500 3.29 4.2 280.5 9.7 0.2 0.0 4.4
73.00 4.06 4486 3.29 4.1 280.2 9.6 0.2 0.0 4.3
74.00 3.93 4473 3.28 3.9 280.0 9.6 0.2 0.0 4.1
75.00 3.80 4460 3.27 3.8 279.7 9.6 0.2 0.0 4.0
76.00 3.68 4447 3.27 3.7 279.4 9.6 0.2 0.0 3.9
77.00 3.56 4435 3.26 3.6 279.2 9.6 0.2 0.0 3.8
78.00 3.45 4423 3.26 3.4 278.9 9.6 0.2 0.0 3.6
79.00 3.34 4411 3.25 3.3 278.7 9.6 0.2 0.0 3.5
80.00 3.23 4400 3.25 3.2 278.4 9.6 0.2 0.0 3.4
81.00 3.13 4388 3.24 3.1 278.2 9.6 0.2 0.0 3.3
82.00 3.03 4377 3.23 3.0 278.0 9.5 0.2 0.0 3.2
83.00 2.93 4366 3.23 2.9 277.7 9.5 0.2 0.0 3.1
84.00 2.84 4356 3.22 2.8 277.5 9.5 0.2 0.0 3.0
85.00 2.75 4345 3.22 2.7 277.3 9.5 0.2 0.0 2.9
86.00 2.66 4335 3.21 2.6 277.1 9.5 0.2 0.0 2.8
87.00 2.58 4325 3.21 2.5 276.9 9.5 0.2 0.0 2.7
88.00 2.50 4315 3.20 2.4 276.7 9.5 0.2 0.0 2.7
89.00 2.42 4306 3.20 2.4 276.5 9.5 0.2 0.0 2.6
Peak Inflow, (Q50) =
11 efs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff)
Vol= 43,887 cf (vol. of runoff)
Time to Peak, (Tp) => 45.99 minutes
(SCS TR-55)
t(tp -QLQP t s

0.00 0.000 0.00 0.00
0.02 0.001 1.00 0.01
0.04 0.005 2.00 0.05
0.07 0.010 3.00 0.12
0.09 0.019 4.00 0.21
0.11 0.029 5.00 0.33
0.13 0.041 6.00 0.47
0.15 0.056 7.00 0.64
0.17 0.073 8.00 0.83
0.20 0.092 9.00 1.05
0.22 0.112 10.00 1.28
0.24 0.135 11.00 1.54
0.26 0.159 12.00 1.82
0.28 0.185 13.00 2.11
0.30 0.212 14.00 2.42
0.33 0.240 15.00 2.75
0.35 0.270 16.00 3.09
0.37 0.301 17.00 3.44
0.39 0.333 18.00 3.81
0.41 0.365 19.00 4.18
0.43 0.398 20.00 4.56
0.46 0.432 21.00 4.94
0.48 0.466 22.00 5.33
0.50 0.500 23.00 5.72
s:ti31110002%caks%Wg10 prideG tOMM 1:47 PM
Page 7 of 13
0.52 0.534 24.00 6.11
0.54 0.568 25.00 6.50
0.57 0.602 26.00 6.89
0.59 0.635 27.00 7.27
0.61 0.668 28.00 7.64
0.63 0.699 29.00 8.00
0.65 0.730 30.00 8.36
0.67 0.760 31.00 8.70
0.70 0.789 32.00 9.02
0.72 0.816 33.00 9.33
0.74 0.841 34.00 9.63
0.76 0.866 35.00 9.90
0.78 0.888 36.00 10.16
0.80 0.909 37.00 10.40
0.83 0.927 38.00 10.61
0.85 0.944 39.00 10.80
0.87 0.959 40.00 10.97
0.89 0.971 41.00 11.11
0.91 0.982 42.00 11.23
0.94 0.990 43.00 11.32
0.96 0.995 44.00 11.39
0.98 0.999 45.00 11.43
1.00 1.000 46.00 11.44
1.02 0.999 47.00 11.43
1.04 0.995 48.00 11.39
1.07 0.989 49.00 11.32
1.09 0.981 50.00 11.23
1.11 0.971 51.00 11.11
1.13 0.958 52.00 10.97
1.15 0.944 53.00 10.80
1.17 0.927 54.00 10.61
1.20 0.908 55.00 10.39
1.22 0.888 56.00 10.16
1.24 0.865 57.00 9.90
1.26 0.842 58.00 9.64
1.28 0.819 59.00 9.37
1.30 0.796 60.00 9.11
1.33 0.774 61.00 8.85
1.35 0.752 62.00 8.61
1.37 0.731 63.00 8.37
1.39 0.711 64.00 8.13
1.41 0.691 65.00 7.91
1.44 0.672 66.00 7.69
1.46 0.653 67.00 7.47
1.48 0.635 68.00 7.26
1.50 0.617 69.00 7.06
1.52 0.600 70.00 6.87
1.54 0.583 71.00 6.67
1.57 0.567 72.00 6.49
1.59 0.551 73.00 6.31
1.61 0.536 74.00 6.13
1.63 0.521 75.00 5.96
1.65 0.506 76.00 5.79
1.67 0.492 77.00 5.63
1.70 0.479 78.00 5.48
1.72 0.465 79.00 5.32
1.74 0.452 80.00 5.17
s9131 lwoo2Y%Cak mwglo Orked IOMM 1:47 PM Page 8 of 13
Pre
The serve 11 WQ# 1
Storm Ro
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cft) (CO u (Cfi) (ccf) (ds) (ass) (cft) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.01 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.05 1 0.01 0.0 16.5 0.0 0.0 0.0 0.0
3.00 0.12 3 0.03 0.0 26.1 0.0 0.0 0.0 0.0
4.00 0.21 9 0.06 0.0 36.8 0.0 0.0 0.0 0.0
5.00 0.33 20 0.10 0.0 47.6 0.1 0.0 0.0 0.0
6.00 0.47 38 0.14 0.0 58.5 0.2 0.0 0.0 0.0
7.00 0.64 64 0.20 0.0 69.4 0.3 0.1 0.0 0.1
8.00 0.83 99 0.27 0.0 80.2 0.5 0.1 0.0 0.1
9.00 1.05 145 0.35 0.0 90.9 0.7 0.1 0.0 0.1
10.00 1.28 204 0.43 0.0 101.6 1.0 0.1 0.0 0.1
11.00 1.54 276 0.53 0.0 112.3 1.3 0.1 0.0 0.1
12.00 1.82 364 0.63 0.0 122.9 1.7 0.1 0.0 0.1
13.00 2.11 467 0.74 0.0 133.4 2.2 0.1 0.0 0.1
14.00 2.42 588 0.87 0.0 143.8 2.7 0.1 0.0 0.1
15.00 2.75 726 1.00 0.0 154.2 3.3 0.1 0.0 0.1
16.00 3.09 884 1.13 0.0 164.5 4.0 0.1 0.0 0.1
17.00 3.44 1062 1.28 0.0 174.7 4.8 0.1 0.0 0.1
18.00 3.81 1261 1.43 0.0 184.8 5.3 0.1 0.0 0.1
19.00 4.18 1481 1.59 0.0 194.8 5.8 0.1 0.0 0.1
20.00 4.56 1722 1.75 0.0 204.7 63 0.2 0.0 0.2
21.00 4.94 1986 1.93 0.0 214.5 6.7 0.2 0.0 0.2
22.00 5.33 2273 2.10 0.0 224.2 7,2 0.2 0.0 0.2
23.00 5.72 2583 2.29 0.0 233.8 7.6 0.2 0.0 0.2
24.00 6.11 2916 2.48 0.0 243.3 8.0 0.2 0.0 0.2
25.00 6.50 3271 2.67 0.0 252.6 8.5 0.2 0.0 0.2
26.00 6.89 3650 2.87 0.0 261.9 8.9 0.2 0.0 0.2
27.00 7.27 4051 3.07 0.5 271.0 9.2 0.2 0.0 0.7
28.00 7.64 4442 3.27 3.6 279.3 9.6 0.2 0.0 3.8
29.00 8.00 4671 3.38 61 284.0 9.8 0.2 0.0 6.3
30.00 8.36 4774 3.42 7.3 286.0 9.9 0.2 0.0 7.5
31.00 8.70 4825 3.45 7.9 287.0 9.9 0.2 0.0 8.1
32.00 9.02 4858 3.46 8.3 287.7 10.0 0.2 0.0 8.6
33.00 9.33 4886 3.48 8.7 288.2 10.0 0.2 0.0 8.9
34.00 9.63 4912 3.49 9.0 288.7 10.0 0.2 0.0 9.2
35.00 9.90 4935 3.50 9.3 289.1 10.0 0.2 0.0 9.5
36.00 10.16 4957 3.51 9.6 289.6 10.0 0.2 0.0 9.8
37.00 10.40 4977 3.52 9.9 289.9 10.1 0.2 0.0 10.1
38.00 10.61 4995 3.53 10.1 290.3 10.1 0.2 0.0 10.3
39.09 10.80 5015 3.54 10.4 290.7 10.1 0.2 0.0 10.3
40.00 10.97 5044 3.55 10.8 291.2 10.1 0.2 0.0 10.3
41.00 11.11 5083 3.57 11.3 291.9 10.1 0.2 0.0 10.4
42.00 11.23 5128 3.59 11.9 292.8 10.2 0.2 0.0 10.4
43.00 11.32 5178 3.61 12.6 293.7 10.2 0.2 0.0 10.4
44.00 11.39 5231 3.64 13.4 294.7 10.3 0.2 0.0 10.5
45.00 11.43 5286 3.66 14.2 295.7 10.3 0.2 0.0 10.5
46.00 11.44 5340 3.69 15.0 296.7 10.3 0.2 0.0 10.6
47.00 11.43 5393 3.71 15.8 297.7 10.4 0.2 0.0 10.6
48.00 11.39 5442 3.73 16.5 298.6 10.4 0.2 0.0 10.6
49.00 11.32 5487 3.75 17.2 299.4 10.4 0.2 0.0 10.7
50.00 11.23 5526 3.77 17.8 300.1 10.5 0.2 0.0 10.7
51.00 11.11 5557 3.78 18.3 300.6 10.5 0.2 0.0 10.7
52.00 10.97 5580 3.79 18.6 301.0 10.5 0.2 0.0 10.7
53.00 10.80 5593 3.80 18.9 301.3 10.5 0.2 0.0 10.8
54.00 10.61 5595 3.80 18.9 301.3 10.5 0.2 0.0 10.8
55.00 10.39 5586 3.80 18.7 301.1 10.5 0.2 0.0 10.8
56.00 10.16 5565 3.79 18.4 300.8 10.5 0.2 0.0 10.7
57.00 9.90 5530 3.77 17.9 300.1 10.5 0.2 0.0 10.7
58.00 9.64 5481 3.75 17.1 299.3 10.4 0.2 0.0 10.7
59.00 9.37 5419 3.72 16.2 298.1 10.4 0.2 0.0 10.6
60.00 9.11 5343 3.69 15.0 296.8 10.3 0.2 0.0 10.6
S.A31iQ1%zlcsic9%wqu8.85 5256 3.65 13a;caa lay =299&Q 10.3 0.2 0.0 ll2Hfie 9 of 13

,The Pr
eserve a Jordan
t Lake - ED D t- i
62.00 8.61 5157 3.60 12.3 293.3 10.2 0.2 0.0 10.4
63.00 8.37 5048 3.55 10.8 291.3 10.1 0.2 0.0 10.3
64.00 8.13 4931 3.50 9.3 289.0 10.0 0.2 0.0 9.5
65.00 7.91 4850 3.46 8.2 287.5 9.9 0.2 0.0 8.4
66.00 7.69 4817 3.44 7.8 286.9 9.9 0.2 0.0 8.0
67.00 7.47 4796 3.43 7.6 286.4 9.9 0.2 0.0 7.8
68.00 7.26 4778 3.43 7.3 286.1 9.9 0.2 0.0 7.6
69.00 7.06 4760 3.42 7.1 285.7 9.9 0.2 0.0 7.3
70.00 6.87 4743 3.41 6.9 285.4 9.9 0.2 0.0 7.1
71.00 6.67 4727 3.40 6.7 285.1 9.8 0.2 0.0 6.9
72.00 6.49 4711 3.39 6.5 284.8 9.8 0.2 0.0 6.8
73.00 6.31 4695 3.39 6.3 284.4 9.8 0.2 0.0 6.6
74.00 6.13 4679 3.38 6.2 284.1 9.8 0.2 0.0 6.4
75.00 5.96 4664 3.37 6.0 283.8 9.8 0.2 0.0 6.2
76.00 5.79 4649 3.36 5.8 283.5 9.8 0.2 0.0 6.0
77.00 5.63 4634 3.36 5.7 283.2 9.8 0.2 0.0 5.9
78.00 5.48 4620 3.35 5.5 282.9 9.8 0.2 0.0 5.7
79.00 5.32 4606 3.34 5.3 282.7 9.7 0.2 0.0 5.6
80.00 5.17 4592 3.34 5.2 282.4 9.7 0.2 0.0 5.4

Inflo-w-Hy drograph 11
Peak Inflow, (Q100) =
13 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoff
Vol= 61,243 cf (vol. of runoff
Time to Peak, (Tp) 55.01 minutes
(SCS TR-55)
QQP t s
(ndn) ers
0.00 0.000 0.00 0.00
0.02 0.001 1.00 0.01
0.04 0.003 2.00 0.04
0.07 0.007 3.00 0.10
0.09 0.013 4.00 0.17
0.11 0.020 5.00 0.27
0.13 0.029 6.00 0.39
0.15 0.039 7.00 0.53
0.17 0.051 8.00 0.68
0.20 0.065 9.00 0.86
0.22 0.079 10.00 1.06
0.24 0.095 11.00 1.27
0.26 0.113 12.00 1.51
0.28 0.132 13.00 1.76
0.30 0.151 14.00 2.02
0.33 0.173 15.00 2.30
0.35 0.195 16.00 2.60
0.37 0.218 17.00 2.91
0.39 0.242 18.00 3.23
0.41 0.267 19.00 3.56
0.43 0.292 20.00 3.90
0.46 0.319 21.00 4.25
0.48 0.345 22.00 4.61
0.50 0.373 23.00 4.98
0.52 0.401 24.00 5.35
0.54 0.429 25.00 5.72
0.57 0.457 26.00 6.10
0.59 0.486 27.00 6.48
0.61 0.514 28.00 6.86
0.63 0.543 29.00 7.24
0.65 0.571 30.00 7.62
.A131110002tcakakWg1O punted 1019100 1:47 PM
Page 10 of 13
0.67 0.599 31.00 8.00
0.70 0.627 32.00 8.37
0.72 0.654 33.00 8.74
0.74 '0.681 34.00 9.09
0.76 0.708 35.00 9.45
0.78 0.733 36.00 9.79
0.80 0.758 37.00 10.12
0.83 0.782 38.00 10.44
0.85 0.805 39.00 10.75
0.87 0.827 40.00 11.04
0.89 0.848 41.00 11.33
0.91 0.868 42.00 11.59
0.94 0.887 43.00 11.84
0.96 0.904 44.00 12.07
0.98 0.921 45.00 12.29
1.00 0.935 46.00 12.49
1.02 0.949 47.00 12.66
1.04 0.960 48.00 12.82
1.07 0.971 49.00 12.96
1.09 0.980 50.00 13.08
1.11 0.987 51.00 13.18
1.13 0.993 52.00 13.25
1.15 0.997 53.00 13.31
1.17 0.999 54.00 13.34
1.20 1.000 55.00 13.35
1.22 0.999 56.00 13.34
1.24 0.997 57.00 13.31
1.26 0.993 58.00 13.25
1.28 0.987 59.00 13.18
1.30 0.980 60.00 13.08
1.33 0.971 61.00 12.96
1.35 0.961 62.00 12.82
1.37 0.949 63.00 12.67
1.39 0.935 64.00 12.49
1.41 0.921 65.00 12.29
1.44 0.905 66.00 12.08
1.46 0.887 67.00 11.84
1.48 0.869 68.00 11.59
1.50 0.850 69.00 11.34
1.52 0.830 70.00 11.08
1.54 0.811 71.00 10.82
1.57 0.792 72.00 10.57
1.59 0.773 73.00 10.32
1.61 0.755 74.00 10.08
1.63 0.737 75.00 9.84
1.65 0.720 76.00 9.61
1.67 0.703 77.00 9.39
1.70 0.687 78.00 9.17
1.72 0.671 79.00 8.96
1.74 0.655 80.00 8.75
1.76 0.640 81.00 8.54
1.78 0.625 82.00 8.34
1.80 0.610 83.00 8.15
1.83 0.596 84.00 7.96
s:n3inao2%caks%WgIO prated 1019M1:47PM Page 11 of 13
Pre serve E D D i- i
Storm •o 00-N, r
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(nun) (cfs) (cf) (m (cfs) Scfs2 WS) WS) WS) Scfs2
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.01 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.04 1 0.01 0.0 15.4 0.0 0.0 0.0 0.0
3.00 0.10 3 0.02 0.0 24.1 0.0 0.0 0.0 0.0
4.00 0.17 7 0.05 0.0 34.1 0.0 0.0 0.0 0.0
5.00 0.27 16 0.08 0.0 44.2 0.1 0.0 0.0 0.0
6.00 0.39 30 0.12 0.0 54.4 0.1 0.0 0.0 0.0
7.00 0.53 51 0.17 0.0 64.5 0.2 0.0 0.0 0.0
8.00 0.68 80 0.23 0.0 74.7 0.4 0.1 0.0 0.1
9.00 0.86 117 0.30 0.0 84.8 0.6 0.1 0.0 0.1
10.00 1.06 165 0.38 0.0 94.8 0.8 0.1 0.0 0.1
11.00 1.27 224 0.46 0.0 104.9 1.0 0.1 0.0 0.1
12.00 1.51 296 0.55 0.0 114.9 1.4 0.1 0.0 0.1
13.00 1.76 381 0.65 0.0 124.8 1.8 0.1 0.0 0.1
14.00 2.02 481 0.76 0.0 134.7 2.2 0.1 0.0 0.1
15.00 2.30 596 0.87 0.0 144.5 2.7 0.1 0.0 0.1
16.00 2.60 728 1.00 0.0 154.3 3.3 0.1 0.0 0.1
17.00 2.91 876 1.13 0.0 164.0 4.0 0.1 0.0 0.1
18.00 3.23 1043 1.26 0.0 173.6 4.7 0.1 0.0 0.1
19.00 3.56 1229 1.41 0.0 183.2 5.2 0.1 0.0 0.1
20.00 3.90 1434 1.56 0.0 192.7 5.7 0.1 0.0 0.1
21.00 4.25 1659 1.71 0.0 202.2 6.2 0.2 0.0 0.2
22.00 4.61 1905 1.87 0.0 211.6 6.6 0.2 0.0 0.2
23.00 4.98 2172 2.04 0.0 220.9 7.0 0.2 0.0 0.2
24.00 5.35 2460 2.22 0.0 230.1 7.5 0.2 0.0 0.2
25.00 5.72 2771 2.40 0.0 239.2 7.9 0.2 0.0 0.2
26.00 6.10 3103 2.58 0.0 248.3 8.3 0.2 0.0 0.2
27.00 6.48 3458 2.77 0.0 257.3 8.7 0.2 0.0 0.2
28.00 6.86 3835 2.97 0.0 266.2 9.0 0.2 0.0 0.2
29.00 7.24 4235 3.16 1.8 275.0 9.4 0.2 0.0 2.0
30.00 7.62 4550 3.32 4.7 2815. 9.7 0.2 0.0 5.0
31.00 8.00 4711 3.39 6.5 284.8 9.8 0.2 0.0 6.8
32.00 8.37 4785 3.43 7.4 286.2 9.9 0.2 0.0 7.7
33.00 8.74 4829 3.45 8.0 287.1 9.9 0.2 0.0 8.2
34.00 9.09 4862 3.47 8.4 287.7 10.0 0.2 0.0 8.6
35.00 9.45 4891 3.48 8.8 288.3 10.0 0.2 0.0 9.0
36.00 9.79 4920 3.49 9.1 288.8 10.0 0.2 0.0 9.3
37.00 10.12 4946 3.50 9.5 289.4 10.0 0.2 0.0 9.7
38.00 10.44 4972 3.52 9.8 289.8 10.0 0.2 0.0 10.0
39.00 10.75 4997 3.53 10.1 290.3 10.1 0.2 0.0 10.3
40.00 11.04 5024 3.54 10.5 290.8 10.1 0.2 0.0 10.3
41.00 11.33 5068 3.56 11.1 291.7 10.1 0.2 0.0 10.3
42.00 11.59 5127 3.59 11.9 292.8 10.2 0.2 0.0 10.4
43.00 11.84 5199 3.62 12.9 294.1 10.2 0.2 0.0 10.5
44.00 12.07 5282 3.66 14.1 295.6 10.3 0.2 0.0 10.5
45.00 12.29 5375 3.70 15.5 297.4 10.4 0.2 0.0 10.6
46.00 12.49 5477 3.75 17.0 299.2 10.4 0.2 0.0 10.7
47.00 12.66 5586 3.80 18.7 301.1 10.5 0.2 0.0 10.8
48.00 12.82 5701 3.85 20.6 303.1 10.6 0.2 0.0 10.8
49.00 12.96 5820 3.90 22.5 305.2 10.7 0.2 0.0 10.9
50.00 13.08 5942 3.95 24.6 307.3 10.8 0.2 0.0 11.0
51.00 13.18 6065 4.01 26.7 309.4 10.9 0.2 0.0 11.1
52.00 13.25 6189 4.06 28.8 311.4 11.0 0.2 0.2 11.4
53.00 13.31 6300 4.11 30.8 313.2 11.0 0.2 0.5 11.8
54.00 13.34 6390 4.15 32.4 314.7 11.1 0.2 0.8 12.2
55.00 13.35 6460 4.18 33.7 315.9 11.1 0.2 1.1 12.5
56.00 13.34 6512 4.20 34.6 316.7 11.2 0.2 1.3 12.7
57.00 13.31 6549 4.21 35.3 317.3 11.2 0.2 1.5 12.9
58.00 13.25 6572 4.22 35.7 317.6 11.2 0.2 1.6 13.0
59.00 13.18 6585 4.23 36.0 317.8 11.2 0.2 1.6 13.1
60.00 13.08 6590 4.23 36.0 317.9 11.2 0.2 1.7 13.1
s:%fi1100?2waxs%wg1i2.96 6587 4.23 36Aed iww3477EQ 11.2 0.2 1.6 R71gi 12 of 13
The Pr eserve a t Jordan Lake - DD WQ# i
62.00 12.82 6578 4.23 35.8 317.7 11.2 0.2 1.6 13.1
63.00 12.67 6563 4.22 35.6 317.5 11.2 0.2 1.5 13.0
64.00 12.49 6544 4.21 35.2 317.2 11.2 0.2 1.5 12.9
65.00 12.29 6520 4.20 34.8 316.8 11.2 0.2 1.4 12.8
66.00 12.08 6491 4.19 34.2 316.3 11.2 0.2 1.2 12.6
67.00 11.84 6458 4.17 33.6 315.8 11.1 0.2 1.1 12.5
68.00 11.59 6420 4.16 32.9 315.2 11.1 0.2 1.0 12.3
69.00 11.34 6378 4.14 32.2 314.5 11.1 0.2 0.8 12.1
70.00 11.08 6332 4.12 31.3 313.8 11.0 0.2 0.6 11.9
71.00 10.82 6281 4.10 30.4 312.9 11.0 0.2 0.5 11.7
72.00 10.57 6227 4.08 29.5 312.1 11.0 0.2 0.3 11.5
73.00 10.32 6169 4.05 28.5 311.1 10.9 0.2 0.2 11.4
74.00 10.08 6107 4.02 27.4 310.1 10.9 0.2 0.1 11.2
75.00 9.84 6040 4.00 26.2 309.0 10.8 0.2 0.0 11.1
76.00 9.61 5966 3.96 25.0 307.7 10.8 0.2 0.0 11.0
77.00 9.39 5881 3.93 23.5 306.3 10.7 0.2 0.0 11.0
78.00 9.17 5786 3.88 22.0 304.6 10.7 0.2 0.0 10.9
79.00 8.96 5682 3.84 20.3 302.8 10.6 0.2 0.0 10.8
80.00 8.75 5570 3.79 18.5 300.8 10.5 0.2 0.0 10.7
81.00 8.54 5450 3.74 16.6 298.7 10.4 0.0 10.4
82.00 8.34 5337 3.68 14.9 296.7 10.3 0.0 10.3
83.00 8.15 5218 3.63 13.2 294.5 10.2 0.0 10.2
84.00 7.96 5092 3.57 11.4 292.1 10.1 0.0 10.1
sAl311W002%caks%wql 0 pirdett 1GM=1v7PM Page 13 of 13
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #10

FLOTATION OF RISER

RISER DIMENSIONS
0 feet
2
Inside Dimensions Width = .
0 feet
2
Length = .

00
413
ELEV. TOP OF RISER = .
00
410
ELEV. BOT. OF RISER= .
3
00 ft
H = .
0 SF
4
AREA OF RISER = .
bic Feet
0 C
12
VOLUME OF RISER = u
.

15 Inch
DIAMETER OF BARREL = 2 SF
1
AREA OF BARREL = .
00 ft
6
EXPOSED LENGTH = .
4 Cubic Feet
7
VOLUME OF BARREL = .

WEIGHT OF WATER DISPLACED = 1208.26 lb
08 lb
1329
FACTOR OF SAFETY (10%) .

Feet
bi
2 C
VOLUME OF CONCRETE ANCHOR = c
u
15.

WEIGHT OF OUTLET STRUCTURE
2'x2'
Inside Dimension
2100 lb
Weight of Concrete
I
771 lb
ANIT-FLOTATION WEIGHT REQUIRED = -
Feet
bi
8 C
ANIT-FLOTATION VOLUME REQUIRED = c
u
-8.

ANTI-FLOTATION PAD REQUIRED
DEPTH = 0.00 ft
00 ft
0
WIDTH = .
00 ft
0
LENGTH= .

I
0 Cubic Feet
0
VOLUME PROVIDED = .

O, NO CONCRETE PAD REQUIRED

I
FE S AT PERMANENT WATER QUALITY POND 910
flow Q in cfs : 11 Flow depth (ft) = 1.25
slope S in ft/ft :.021 Outlet velocity (fps) = 8.964
pipe diameter D in ft : 1.25
Manning number n :.012
ZONE 2
For a pipe diameter of 1.25 feet and
an outlet velocity of 8.96 feet per second:
The recommended apron length is 7.50 feet.
The maximum stone diameter is 12.3 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
6 B 22
W
-WPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY WET POND #11
# Lots s.f./Lot Total
47 6,500 305,500
Roadways 86,700 s.f.
Lots (houses, drives, etc.) 305,500 s.f.
Golf Cart Paths 31,480 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 423,680 s.f.
Total Area = 75.82 ac.
Impervious Area = 9.73 ac.
Impervious Percentage = 12.8%
The storage volume for the 1" stone (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.165
Volume = (Design Rainfall) ` (RV)•(Drainage Area)
Volume = 1.04378867 ac.ft.
45,467 cf
45,467 c.f. storage required.
52,027 c.f. storage provided.
Approximate Forebay Volume (20%) = 9,093
ermanent Pool Depth = 3 ft.
A / DA ratio = 0.639
-Required Surface Area = 0.48 ac.
21,104 sf
0-9" Depth Surface Area (35%) = 7387 sf
9-18" Depth Surface Area (35%) = 7387 sf
Micro Pool 3' Depth (15%) = 3166 sf
Forebay Surface Area (15%) = 3166 sf
Total Surface Area = 21104 sf
c.f.
Storage Provided
Incremental Total
Elev. Area (s f) Volume (c f) Volume (c.f.) Depth (ft.)
406 23,393
52,027
52,027
408 28,634
Drawdown calculation
Orifice required for 2-5 Day Drawdown
2 feet of storage so, say 1 feet of average head
Using a 3" orifice Q2-day= 41,630
Q = 0.24 cfs Q5-day= 104,074
So, a T' Orifice will drawdown pond in 2.50 days
The following pages show the stormwater pond routing by the Rooney Malcom
?-Chainsaw method.
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff through extended detention wetlands.

'o 1 ipment Runoff 10-yr
Drainage Area, (DA) = 75.82 acres
Overland Flow
Elevation of most remote point, (HI) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (Hl) = 511.0 feet
Elevation of point of design, (112) = 296.0 feet
Length of travel, (L) = 5260.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 19.6 minutes
Pipe Flow
Elevation of most remote point; (Hl) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) _> 19.6 minutes
Intensity, (1) = 4.69 inches/hr
Area 1 (Impervious) = 9.73 acres
Area 2 (Pervious) = 66.09 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) _> 0.30
Peak Release Rate, (Qla) _> 105 cfs
Post-Development Runoff
Drainage Area, (DA) = 75.82 acres
Time of Concentration, (Tc) _> 19.6 minutes
Intensity, (1) = 5.44 inches/hr
Composite Runoff Coefficient, (C) _> 0.30
Peak Release Rate, (Qu) _> 122 cfs
Drainage Area, (DA) _
Time of Concentration, (Tc) _>
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Q100) _>
75.82 acres
19.6 minutes
6.50 inches
0.30
146 cfs
sA1311W00ZuM1CSlwy» pinted 10111/003:09PM Page1 of 14
The Preserv e at Jordan L ake - ED`S' Ni'Q#t 1
Stage - Storage Function
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cfl (ft) In (S) In (Z) Z est
406 23,393
408 28,634 52,027 52,027 2.00 10.86 0.69 2.00
410 34,102 62,736 114,763 4.00 11.65 1.39 4.00
411 36,902 35,502 150,265 5.00 11.92 1.61 5.07
Check
Stage Storage
2 52,027
4 114,763
6 182,297
Regression Output:
br 1.14 (X Variable Coeff)
K 23,586 (e''-°"""°p`)
Stage - Storage Equation is of the form: S = (KsW

Stage - Discharge Relationship:
Normal Water Surface Elev. = 406.0 feet
Water Surface Elev. (Q10) _ 409 ; 2 feet
Water Surface Elev. (Qu) _ 401).7-? feet
Water Surface Elev. (Q100) _ 410.01 feet
Primary Spillway
Barrel
Dia. of Barrel = 36 inches
Area of Barrel, (Ab) = 7.07 sf
Pipe Length, (L) = 56.0 feet
Friction Coeff., (Kp) = 0.00616
Inv. of Barrel = 403.00 feet
Riser
Elev. of Riser Crest = 408.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 3 " 0.0491
s:11311%0002ka1cs1Wg11 printed 10111f003:09PM
Page 2 of 14
The Preserve at Jordan Lake - EDW WQ#11
Rectangular:
Length of Riser = 4 feet
Width of Riser = 4 feet
Weir Length = 16 feet
Area of Riser = 16 sq.ft.
Permanent Pool Depth at Riser =
Width of Spillway (Approx.) _
Weir Coefficient =
Crest Elevation =
3 feet
20 feet
3.0
409 feet
DFGVT
sa131 Im00z=Ic.Awai1 printed 10M/003.09 PM Page 3 of 14
,The Preserve at Jordan La ke - ED W WQ# I I

Inflow oo 1
Peak Inflow, (Qlo) 105 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Qs= 1.88 in. (depth of runofl)
Vol= 518,149 cf (vol. of runoff
Time to Peak, (Tp) => 59.03 minutes
(SCS TR-55)
-tM 44e t 4
(Htbl) WS)
0.00 0.000 0 0.00
0.03 0.003 2 0.30
0.07 0.011 4 1.19
0.10 0.025 6 2.66
0.14 0.045 8 4.70
0.17 0.069 10 7.28
0.20 0.099 12 10.37
0.24 0.133 14 13.95
0.27 0.171 16 17.96
0.30 0.212 18 22.36
0.34 0.258 20 27.11
0.37 0.305 22 32.14
0.41 0.355 24 37.41
0.44 0.407 26 42.85
0.47 0.460 28 48.39
0.51 0.513 30 53.99
0.54 0.566 32 59.57
0.58 0.618 34 65.08
0.61 0.669 36 70.44
0.64 0.718 38 75.60
0.68 0.765 40 80.50
0.71 0.808 42 85.09
0.75 0.848 44 89.30
0.78 0.885 46 93.11
0.81 0.916 48 96.45
0.85 0.943 50 99.30
0.88 0.965 52 101.62
0.91 0.982 54 103.38
0.95 0.994 56 104.57
0.98 0.999 58 105.18
1.02 0.999 60 105.19
1.05 0.994 62 104.60
1.08 0.983 64 103.42
1.12 0.966 66 101.67
1.15 0.944 68 99.37
1.19 0.917 70 96.53
1.22 0.885 72 93.20
1.25 0.851 74 89.52
1.29 0.814 76 85.66
1.32 0.779 78 81.97
1.36 0.745 80 78.44
1.39 0.713 82 75.06
1.42 0.682 84 71.83
1.46 0.653 86 68.73
1.49 0.625 88 65.77
1.52 0.598 90 62.93
1.56 0.572 92 60.22
sA1311WW2ka1cs\Wg1 t pnrvteQ 10111=3:09 PM Page 4 of 14

1.59 0.547 94 57.63
1.63 0.524 96 55.14
1.66 0.501 98 52.77
1.69 0.480 100 50.49
1.73 0.459 102 48.32
1.76 0.439 104 46.24
1.80 0.420 106 44.24
1.83 0.402 108 42.34
1.86 0.385 110 40.51
1.90 0.368 112 38.77
1.93 0.352 114 37.10
1.97 0.337 116 35.50
2.00 0.323 118 33.97
2.03 0.309 120 32.50
2.07 0.296 122 31.10
2.10 0.283 124 29.76
2.13 0.271 126 28.48
2.17 0.259 128 27.25
2.20 0.248 130 26.08
2.24 0.237 132 24.95
2.27 0.227 134 23.88
2.30 0.217 136 22.85
2.34 0.208 138 21.87
2.37 0.199 140 20.92
2.41 0.190 142 20.02
2.44 0.182 144 19.16
2.47 0.174 146 18.33
2.51 0.167 148 17.54
2.54 0.159 150 16.79
2.58 0.153 152 16.06
2.61 0.146 154 15.37
2.64 0.140 156 14.71
2.68 0.134 158 14.08
2.71 0.128 160 13.47
2.74 0.122 162 12.89
2.78 0.117 164 12.33
2.81 0.112 166 11.80
2.85 0.107 168 11.29
2.88 0.103 170 10.81
2.91 0.098 172 10.34
2.95 0.094 174 9.90
2.98 0.090 176 9.47
sAl311%0002%caksWg11 prr*ed 10/11=3:09 PM Page 5 of 14
Pre
,The serve at- Jordan i

't 10-yr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(mm) (cfs) ct fm (cfs) (efs) cfs (cfs) (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.30 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.19 36 0.00 0.0 0.0 0.0 0.1 0.0 0.1
6.00 2.66 165 0.01 0.0 0.0 0.0 0.2 0.0 0.2
8.00 4.70 458 0.03 0.0 0.0 0.0 0.3 0.0 0.3
10.00 7.28 982 0.06 0.0 0.0 0.1 0.5 0.0 0.5
12.00 10.37 1799 0.10 0.0 0.0 0.3 0.6 0.0 0.6
14.00 13.95 2970 0.16 0.0 0.0 0.5 0.8 0.0 0.8
16.00 17.96 4552 0.24 0.0 0.0 0.9 0.9 0.0 0.9
18.00 22.36 6596 0.33 0.0 0.0 1.5 1.1 0.0 1.1
20.00 27.11 9149 0.44 0.0 0.0 2.3 1.3 0.0 1.3
22.00 32.14 12251 0.56 0.0 0.0 3.4 1.4 0.0 1.4
24.00 37.41 15937 0.71 0.0 0.0 4.8 1.6 0.0 1.6
26.00 42.85 20234 0.87 0.0 0.0 6.6 1.8 0.0 1.8
28.00 48.39 25163 1.06 0.0 0.0 8.7 2.0 0.0 2.0
30.00 53.99 30736 1.26 0.0 0.0 11.4 2.1 0.0 2.1
32.00 59.57 36960 1.48 0.0 0.0 14.5 2.3 0.0 2.3
34.00 65.08 43832 1.72 0.0 0.0 18.1 2.5 0.0 2.5
36.00 70.44 51342 1.98 0.0 0.0 22.3 2.7 0.0 2.7
38.00 75.60 59475 2.25 6.6 308.3 27.1 2.8 0.0 9.4
40.00 80.50 67420 2.51 19.2 441.5 32.0 3.0 0.0 22.2
42.00 85.09 74413 2.74 33.4 530.6 36.4 3.1 0.0 36.5
44.00 89.30 80241 2.92 46.9 594.1 40.2 3.2 0.0 43.4
46.00 93.11 85749 3.10 60.8 648.0 73.0 3.3 1.9 66.0
48.00 96.45 89003 3.20 69.5 677.6 73.8 3.4 5.4 78.3
50.00 99.30 91176 3.27 75.5 696.6 74.3 3.4 8.4 86.2
52.00 101.62 92752 3.32 80.0 710.1 74.7 3.5 10.8 89.0
54.00 103.38 94267 3.37 84.4 722.7 75.1 3.5 13.3 91.9
56.00 104.57 95647 3.41 88.4 734.1 75.4 3.5 15.7 94.7
58.00 105.18 96837 3.45 91.9 743.7 75.7 3.5 17.9 97.1
60.00 105.19 97801 3.48 94.8 751.4 75.9 3.5 19.8 99.2
62.00 104.60 98515 3.50 96.9 757.0 76.1 3.5 21.2 100.8
64.00 103.42 98970 3.51 98.3 760.6 76.2 3.6 22.1 101.8
66.00 101.67 99161 3.52 98.9 762.0 76.3 3.6 22.5 102.3
68.00 99.37 99090 3.52 98.7 761.5 76.2 3.6 22.3 102.1
70.00 96.53 98761 3.51 97.7 758.9 76.2 3.6 21.7 101.4
72.00 93.20 98182 3.49 95.9 754.4 76.0 3.5 20.5 100.1
74.00 89.52 97357 3.46 93.4 747.8 75.8 3.5 18.9 98.3
76.00 85.66 96308 3.43 90.3 739.4 75.6 3.5 16.9 96.0
78.00 81.97 95064 3.39 86.7 729.3 75.3 3.5 14.7 93.5
80.00 78.44 93684 3.35 82.7 717.9 74.9 3.5 12.3 90.8
82.00 75.06 92207 3.30 78.5 705.5 74.6 3.4 10.0 88.0
84.00 71.83 90655 3.25 74.1 692.1 74.2 3.4 7.7 85.2
86.00 68.73 89055 3.20 69.7 678.1 73.8 3.4 5.5 78.5
88.00 65.77 87877 3.17 66.5 667.5 73.5 3.4 4.1 73.9
90.00 62.93 86902 3.14 63.8 658.7 73.3 3.4 3.0 70.2
92.00 60.22 86032 3.11 61.5 650.6 73.1 3.3 2.1 67.0
94.00 57.63 85219 3.08 59.4 643.0 72.9 3.3 1.4 64.1
96.00 55.14 84437 3.06 57.4 635.6 72.7 3.3 0.8 61.5
98.00 52.77 83673 3.03 55.4 628.3 72.5 3.3 0.4 59.1
100.00 50.49 82917 3.01 53.5 620.9 72.3 3.3 0.0 56.8
102.00 48.32 82156 2.98 51.6 613.4 41.4 3.3 0.0 44.7
104.00 46.24 82590 3.00 52.7 617.7 41.7 3.3 0.0 45.0
106.00 44.24 82738 3.00 53.0 619.2 72.2 3.3 0.0 56.3
108.00 42.34 81287 2.96 49.4 604.7 40.9 3.3 0.0 44.1
110.00 40.51 81073 2.95 48.9 602.6 40.7 3.3 0.0 44.0
112.00 38.77 80658 2.94 47.9 598.4 40.4 3.3 0.0 43.7
114.00 37.10 80067 2.92 46.4 592.3 40.1 3.2 0.0 43.3
116.00 35.50 79324 2.89 44.6 584.6 39.6 3.2 0.0 42.8
118.00 33.97 78449 2.87 42.6 575.4 39.0 3.2 0.0 42.2
120.00 32.50 77461 2.83 40.3 564.8 38.3 3.2 0.0 41.5
s:%lb2,3h6fl=6-5,wq,131.10 76377 2.80 A a 10/111003:&$A9 37.6 3.2 0.0 ft86 of 14
124.00 29.76 75211 2.76 35.1 539.8 36.9 3.2 0.0 38.3
126.00 28.48 74188 2.73 32.9 528.0 36.2 3.1 0.0 36.0
128.00 27.25 73283 2.70 30.9 517.3 35.7 3.1 0.0 34.0
130.00 26.08 72468 2.67 29.2 507.5 35.1 3.1 0.0 32.3
132.00 24.95 71721 2.65 27.6 498.3 34.7 3.1 0.0 30.7
134.00 23.88 71028 2.63 26.2 489.6 34.2 3.1 0.0 29.3
136.00 22.85 70377 2.61 24.9 481.3 33.8 3.1 0.0 28.0
138.00 21.87 69762 2.59 23.7 473.3 33.4 3.1 0.0 26.7
140.00 20.92 69177 2.57 22.5 465.6 33.0 3.0 0.0 25.6
s:11311M0002%calas1Wg11 prirtes 10/1 V003:09 PM Page 7 of 14
The Pre serve at Jordan L ake - EDW t
142.00 20.02 68617 2.55 21.5 458.0 32.7 3.0 0.0 24.5
144.00 19.16 68080 2.53 20.5 450.7 32.4 3.0 0.0 23.5
146.00 18.33 67563 2.51 19.5 443.5 32.0 3.0 0.0 22.5
148.00 17.54 67063 2.50 18.6 436.4 31.7 3.0 0.0 21.6
150.00 16.79 66581 2.48 17.7 429.4 31.4 3.0 0.0 20.7
152.00 16.06 66113 2.47 16.9 422.6 31.1 3.0 0.0 19.8
154.00 15.37 65660 2.45 16.1 415.8 30.9 3.0 0.0 19.0
156.00 14.71 65220 2.44 15.3 409.2 30.6 3.0 0.0 18.3
158.00 14.08 64794 2.42 14.6 402.6 30.3 3.0 0.0 17.5
160.00 13.47 64379 2.41 13.9 396.1 30.1 2.9 0.0 16.8
162.00 12.89 63976 2.40 13.2 389.6 29.8 2.9 0.0 16.2
164.00 12.33 63584 2.38 12.6 383.3 29.6 2.9 0.0 15.5
166.00 11.80 63203 2.37 12.0 377.0 29.4 2.9 0.0 14.9
168.00 11.29 62833 2.36 11.4 370.7 29.1 2.9 0.0 14.3
170.00 10.81 62472 2.35 10.8 364.6 28.9 2.9 0.0 13.7
172.00 10.34 62121 2.34 10.3 358.5 28.7 2.9 0.0 13.2
174.00 9.90 61779 2.32 9.8 352.4 28.5 2.9 0.0 12.7
176.00 9.47 61446 2.31 9.3 346.4 28.3 2.9 0.0 12.2

Peak Inflow, (Q5o) = 122 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 681,873 cf (vol. of runoff
Time to Peak, (Tp) => 66.86 minutes
(SCS TR-55)
t/tv 292 t 4
(min) cfs
0.00 0.000 0.00 0.00
0.03 0.002 2.00 0.27
0.06 0.009 4.00 1.08
0.09 0.020 6.00 2.41
0.12 0.035 8.00 4.27
0.15 0.054 10.00 6.63
0.18 0.077 12.00 9.47
0.21 0.104 14.00 12.76
0.24 0.135 16.00 16.48
0.27 0.168 18.00 20.60
0.30 0.205 20.00 25.07
0.33 0.244 22.00 29.86
0.36 0.286 24.00 34.93
0.39 0.329 26.00 40.23
0.42 0.374 28.00 45.72
0.45 0.420 30.00 51.34
0.48 0.466 32.00 57.04
0.51 0.513 34.00 62.79
0.54 0.560 36.00 68.51
0.57 0.607 38.00 74.18
0.60 0.652 40.00 79.73
0.63 0.696 42.00 85.11
0.66 0.738 44.00 90.28
0.69 0.778 46.00 95.20
0.72 0.816 48.00 99.81
0.75 0.851 50.00 104.09
0.78 0.883 52.00 107.98
0.81 0.911 54.00 111.46
0.84 0.936 56.00 114.50
0.87 0.957 58.00 117.07
0.90 0.974 60.00 119.14
0.93 0.987 62.00 120.70
0.96 0.995 64.00 121.74
s:11311100021caIm%Wgl l printed 101111003:08 PM
Page 8 of 14
Pre
The serve
J ordan I
0.99 1.000 66.00 122.24
1.02 0.999 68.00 122.20
1.05 0.995 70.00 121.62
1.08 0.985 72.00 120.51
1.11 0.972 74.00 118.88
1.14 0.955 76.00 116.73
1.17 0.933 78.00 114.10
1.20 0.908 80.00 111.00
1.23 0.879 82.00 107.45
1.26 0.848 84.00 103.64
1.29 0.815 86.00 99.69
1.32 0.784 88.00 95.89
1.35 0.754 90.00 92.23
1.38 0.725 92.00 88.71
1.41 0.698 94.00 85.33
1.44 0.671 96.00 82.07
1.47 0.646 98.00 78.94
1.50 0.621 100.00 75.93
1.53 0.597 102.00 73.04
1.56 0.574 104.00 70.25
1.59 0.553 106.00 67.57
1.62 0.531 108.00 64.99
1.65 0.511 110.00 62.51
1.68 0.492 112.00 60.13
1.71 0.473 114.00 57.84
1.74 0.455 116.00 55.63
1.76 0.438 118.00 53.51
1.79 0.421 120.00 51.47
1.82 0.405 122.00 49.50
1.85 0.389 124.00 47.62
1.88 0.375 126.00 45.80
1.91 0.360 128.00 44.05
1.94 0.346 130.00 42.37
1.97 0.333 132.00 40.76
2.00 0.321 134.00 39.20
2.03 0.308 136.00 37.71
2.06 0.297 138.00 36.27
2.09 0.285 140.00 34.89
2.12 0.274 142.00 33.55
2.15 0.264 144.00 32.27
2.18 0.254 146.00 31.04
2.21 0.244 148.00 29.86
2.24 0.235 150.00 28.72
2.27 0.226 152.00 27.63
2.30 0.217 154.00 26.57
2.33 0.209 156.00 25.56
2.36 0.201 158.00 24.58
2.39 0.193 160.00 23.65

Storm Rou ting
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW

0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.27 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.08 32 0.00 0.0 0.0 0.0 0.1 0.0 0.1
6.00 2.41 149 0.01 0.0 0.0 0.0 0.2 0.0 0.2
8.00 4.27 414 0.03 0.0 0.0 0.0 0.3 0.0 0.3
10.00 6.63 887 0.06 0.0 0.0 0.1 0.5 0.0 0.5
12.00 9.47 1629 0.10 0.0 0.0 0.2 0.6 0.0 0.6
14.00 12.76 2694 0.15 0.0 0.0 0.5 0.7 0.0 0.7
16.00 16.48 4137 0.22 0.0 0.0 0.8 0.9 0.0 0.9
18.00 20.60 6009 0.30 0.0 0.0 1.3 1.0 0.0 1.0
20.00 25.07 8356 0.40 0.0 0.0 2.1 1.2 0.0 1.2
s:%l wai,swv0i 29.86 11220 0.52 p kol la»m03:09" 3.0 1.4 0.0 Phdb 9 of 14
Pre
The serve Jordan 1
24.00 3493 14639 0.66 0.0 0.0 4.3 1.5 0.0 1.5
26.00 40.23 18646 0.81 0.0 0.0 5.9 1.7 0.0 1.7
28.00 45.72 23269 0.99 0.0 0.0 7.9 1.9 0.0 1.9
30.00 51.34 28528 1.18 0.0 0.0 10.3 2.1 0.0 2.1
32.00 57.04 34441 1.39 0.0 0.0 13.2 2.2 0.0 2.2
34.00 62.79 41018 1.62 0.0 0.0 16.6 2.4 0.0 2.4
36.00 68.51 48262 1.87 0.0 0.0 20.6 2.6 0.0 2.6
38.00 74.18 56172 2.14 2.7 230.4 25.1 2.8 0.0 5.5
40.00 79.73 64412 2.41 13.9 396.6 30.1 2.9 0.0 16.9
42.00 85.11 71953 2.66 28.1 501.2 34.8 3.1 0.0 31.2
44.00 90.28 78420 2.87 42.5 575.1 39.0 3.2 0.0 42.2
46.00 95.20 84193 3.05 56.7 633.3 72.6 3.3 0.7 60.7
48.00 99.81 88331 3.18 67.7 671.6 73.6 3.4 4.6 75.7
50.00 104.09 91229 3.27 75.7 697.1 74.3 3.4 8.5 86.3
52.00 107.98 93369 3.34 81.8 715.3 74.9 3.5 11.8 90.1
54.00 111.46 95509 3.41 88.0 732.9 75.4 3.5 15.5 94.4
56.00 114.50 97560 3.47 94.1 749.4 75.9 3.5 19.3 98.7
58.00 117.07 99455 3.53 99.8 764.3 76.3 3.6 23.0 102.9
60.00 119.14 101152 3.58 105.0 777.4 76.7 3.6 26.6 106.9
62.00 120.70 102622 3.63 109.5 788.5 77.1 3.6 29.8 110.4
64.00 121.74 103853 3.66 113.4 797.7 77.3 3.6 32.5 113.5
66.00 122.24 104841 3.70 116.6 805.0 77.6 3.6 34.8 116.0
68.00 122.20 105589 3.72 118.9 810.4 77.7 3.7 36.5 117.9
70.00 121.62 106100 3.73 120.6 814.1 77.9 3.7 37.7 119.3
72.00 120.51 106382 3.74 121.5 816.2 77.9 3.7 38.4 120.0
74.00 118.88 106441 3.74 121.7 816.6 77.9 3.7 38.6 120.2
76.00 116.73 106286 3.74 121.2 815.5 77.9 3.7 38.2 119.8
78.00 114.10 105922 3.73 120.0 812.9 77.8 3.7 37.3 118.8
80.00 111.00 105356 3.71 118.2 808.7 77.7 3.7 36.0 117.3
82.00 107.45 104595 3.69 115.8 803.2 77.5 3.6 34.2 115.4
84.00 103.64 103644 3.66 112.8 796.1 77.3 3.6 32.0 113.0
86.00 99.69 102523 3.62 109.2 787.8 77.0 3.6 29.6 110.2
88.00 95.89 101262 3.58 105.3 778.2 76.7 3.6 26.8 107.2
90.00 92.23 99910 3.54 101.2 767.9 76.4 3.6 24.0 104.0
92.00 88.71 98500 3.50 96.9 756.9 76.1 3.5 21.1 100.8
94.00 85.33 97052 3.45 92.5 745.4 75.8 3.5 18.3 97.6
96.00 82.07 95578 3.41 88.2 733.5 75.4 3.5 15.6 94.5
98.00 78.94 94085 3.36 83.8 721.2 75.0 3.5 13.0 91.5
100.00 75.93 92575 3.31 79.5 708.6 74.7 3.5 10.5 88.7
102.00 73.04 91047 3.27 75.2 695.5 74.3 3.4 8.2 85.9
104.00 70.25 89498 3.22 70.9 682.0 73.9 3.4 6.1 80.3
106.00 67.57 88286 3.18 67.6 671.2 73.6 3.4 4.5 75.5
108.00 64.99 87336 3.15 65.0 662.6 73.4 3.4 3.4 71.8
110.00 62.51 86517 3.12 62.8 655.1 73.2 3.4 2.6 68.8
112.00 60.13 85768 3.10 60.8 648.2 73.0 3.3 1.9 66.1
11410 57.84 85056 3.08 59.0 641.5 72.8 3.3 1.3 63.6
116.00 55.63 84367 3.05 57.2 634.9 72.6 3.3 0.8 61.3
118.00 53.51 83689 3.03 55.5 628.4 72.5 3.3 0.4 59.1
120.00 51.47 83015 3.01 53.7 621.9 72.3 3.3 0.1 57.1
122.00 49.50 82338 2.99 52.0 615.2 41.5 3.3 0.0 44.8
124.00 47.62 82899 3.01 53.4 620.8 72.3 3.3 0.0 56.8
126.00 45.80 81799 2.97 50.7 609.9 41.2 3.3 0.0 44.5
128.00 44.05 81960 2.98 51.1 611.5 41.3 3.3 0.0 44.6
130.00 42.37 81897 2.98 50.9 610.9 41.3 3.3 0.0 44.5
132.00 40.76 81639 2.97 50.3 608.3 41.1 3.3 0.0 44.4
134.00 39.20 81207 2.95 49.2 603.9 40.8 3.3 0.0 44.1
136.00 37.71 80624 2.94 47.8 598.0 40.4 3.2 0.0 43.7
138.00 36.27 79909 2.91 46.1 590.7 39.9 3.2 0.0 43.2
140.00 34.89 79079 2.89 44.1 582.0 39.4 3.2 0.0 42.6
142.00 33.55 78150 2.86 41.9 572.2 38.8 3.2 0.0 42.0
144.00 32.27 77137 2.82 39.5 561.2 38.1 3.2 0.0 41.3
146.00 31.04 76051 2.79 37.0 549.2 37.4 3.2 0.0 40.2
148.00 29.86 74953 2.75 34.6 536.8 36.7 3.1 0.0 37.7
150.00 28.72 74011 2.72 32.5 525.9 36.1 3.1 0.0 35.6
152.00 27.63 73182 2.70 30.7 516.1 35.6 3.1 0.0 33.8
154.00 26.57 72437 2.67 29.1 507.1 35.1 3.1 0.0 32.
2
s:? 71(0 1Ca?es?wgtl25.56 71757 2.65 27 ,a,1ro03:0`? 7 34.7 3.1 0.0 2
P19M0of14
158.00 24.58 71127 2.63 26.4 490.9 34.3 3.1 0.0
160.00 23.65 70537 2.61 25.2 483.4 33.9 3.1 0.0
Peak Inflow, (Qlo) = 146 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S=
Q*= 3.46 in. (depth of runoff
Vol= 951,524 cf (vol. of runoff
Time to Peak, (Tp) => 78.14 minutes
(SCS TR-55)
QDR t Q
(gin) LCAI
0.00 0.000 0.00 0.00
0.03 0.002 2.00 0.24
0.06 0.006 4.00 0.94
0.09 0.014 6.00 2.11
0.12 0.026 8.00 3.74
0.15 0.040 10.00 5.82
0.18 0.057 12.00 8.33
0.21 0.077 14.00 11.26
0.24 0.100 16.00 14.59
0.27 0.125 18.00 18.30
0.30 0.153 20.00 22.36
0.33 0.183 22.00 26.74
0.36 0.215 24.00 31.43
0.39 0.249 26.00 36.38
0.42 0.285 28.00 41.57
0.45 0.322 30.00 46.97
0.48 0.360 32.00 52.53
0.51 0.399 34.00 58.23
0.54 0.438 36.00 64.02
0.57 0.478 38.00 69.86
0.60 0.519 40.00 75.73
0.63 0.559 42.00 81.58
0.66 0.598 44.00 87.38
0.69 0.638 46.00 93.08
0.72 0.676 48.00 98.65
0.75 0.713 50.00 104.06
0.78 0.748 52.00 109.27
0.81 0.782 54.00 114.24
0.84 0.815 56.00 118.95
0.87 0.845 58.00 123.35
0.90 0.873 60.00 127.44
0.93 0.898 62.00 131.17
0.96 0.921 64.00 134.53
0.99 0.942 66.00 137.48
1.02 0.959 68.00 140.02
1.05 0.973 70.00 142.13
1.08 0.985 72.00 143.79
1.11 0.993 74.00 145.00
1.14 0.998 76.00 145.74
1.17 1.000 78.00 146.01
1.20 0.999 80.00 145.80
1.23 0.994 82.00 145.13
1.26 0.986 84.00 143.99
1.29 0.975 86.00 142.39
1.32 0.961 88.00 140.35
1.35 0.944 90.00 137.87
1.38 0.924 92.00 134.96
1.41 0.902 94.00 131.66
s:%1 31110 0 021caks1WgI1 pined 10111/00 3:09 PM
2.66 in.
29.5
28.3
Page 11 of 14
1.44 0.877 96.00 127.98
1.47 0.850 98.00 124.11
1.50 0.822 100.00 120.05
1.53 0.795 102.00 116.12
1.56 0.769 104.00 112.32
1.59 0.744 106.00 108.64
1.62 0.720 108.00 105.09
1.65 0.696 110.00 101.65
1.68 0.673 112.00 98.32
1.71 0.651 114.00 95.10
1.74 0.630 116.00 91.99
1.76 0.609 118.00 88.98
1.79 0.589 120.00 86.07
1.82 0.570 122.00 83.25
1.85 0.552 124.00 80.53
1.88 0.533 126.00 77.89
1.91 0.516 128.00 75.34
1.94 0.499 130.00 72.88
1.97 0.483 132.00 70.49
2.00 0.467 134.00 68.18
2.03 0.452 136.00 65.95
2.06 0.437 138.00 63.79
2.09 0.423 140.00 61.71
2.12 0.409 142.00 59.69
2.15 0.395 144.00 57.73
2.18 0.382 146.00 55.85
2.21 0.370 148.00 54.02
2.24 0.358 150.00 52.25
2.27 0.346 152.00 50.54
2.30 0.335 154.00 48.89
2.33 0.324 156.00 47.29
2.36 0.313 158.00 45.74
2.39 0.303 160.00 44.24
2.42 0.293 162.00 42.79
2.45 0.284 164.00 41.39
2.48 0.274 166.00 40.04
2.51 0.265 168.00 38.73
s11311wo02icaicslWgli printed 10/11/003:08 PM Page 12 of 14
Storm Rou tine 100-vr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) Lcb- ift-1 Sefs2 is? (cfs) (cfs) (Cfs) 5efs2
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.24 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.94 28 0.00 0.0 0.0 0.0 0.1 0.0 0.1
6.00 2.11 129 0.01 0.0 0.0 0.0 0.2 0.0 0.2
8.00 3.74 360 0.03 0.0 0.0 0.0 03 0.0 0.3
10.00 5.82 773 0.05 0.0 0.0 0.1 0.4 0.0 0.4
12.00 8.33 1420 0.09 0.0 0.0 0.2 0.6 0.0 0.6
14.00 11.26 2354 0.13 0.0 0.0 0.4 0.7 0.0 0.7
16.00 14.59 3622 0.19 0.0 0.0 0.7 0.8 0.0 0.8
18.00 18.30 5273 0.27 0.0 0.0 1.1 1.0 0.0 1.0
20.00 22.36 7350 0.36 0.0 0.0 1.7 1.1 0.0 1.1
22.00 26.74 9897 0.47 0.0 0.0 2.6 1.3 0.0 1.3
24.00 31.43 12950 0.59 0.0 0.0 3.7 1.5 0.0 1.5
26.00 36.38 16547 0.73 0.0 0.0 5.0 1.6 0.0 1.6
28.00 41.57 20718 0.89 0.0 0.0 6.8 1.8 0.0 1.8
30.00 46.97 25492 1.07 0.0 0.0 8.9 2.0 0.0 2.0
32.00 52.53 30892 1.27 0.0 0.0 11.5 2.1 0.0 2.1
34.00 58.23 36940 1.48 0.0 0.0 14.5 2.3 0.0 2.3
36.00 64.02 43650 1.71 0.0 0.0 18.0 2.5 0.0 2.5
38.00 69.86 51034 1.97 0.0 0.0 22.2 2.7 0.0 2.7
40.00 75.73 59098 2.24 6.1 300.5 26.9 2.8 0.0 8.9
42.00 81.58 67118 2.50 18.7 437.2 31.8 3.0 0.0 21.7
44.00 87.38 74308 2.73 33.1 529.4 36.3 3.1 0.0 36.3
46.00 93.08 80440 2.93 47.3 596.1 40.3 3.2 0.0 43.5
48.00 98.65 86384 3.12 62.5 653.9 73.1 3.3 2.5 68.3
50.00 104.06 90030 3.23 72.4 686.7 74.1 3.4 6.8 82.5
52.00 109.27 92613 3.31 79.6 708.9 74.7 3.5 10.6 88.7
54.00 114.24 95077 3.39 86.7 729.4 75.3 3.5 14.7 93.5
56.00 118.95 97566 3.47 94.1 749.5 75.9 3.5 19.3 98.7
58.00 123.35 99993 3.55 101.4 768.5 76.4 3.6 24.2 104.2
60.00 127.44 102295 3.62 108.5 786.1 77.0 3.6 29.0 109.6
62.00 131.17 104431 3.68 115.2 802.0 77.5 3.6 33.8 115.0
64.00 134.53 106375 3.74 121.5 816.1 77.9 3.7 38.4 120.0
66.00 137.48 108118 3.80 127.1 828.6 78.3 3.7 42.6 124.7
68.00 140.02 109657 3.84 132.2 839.4 78.7 3.7 46.5 128.9
70.00 142.13 110993 3.88 136.6 848.7 79.0 3.7 49.9 132.6
72.00 143.79 112133 3.92 140.4 856.6 79.2 3.8 52.9 135.9
74.00 145.00 113080 3.95 143.6 863.0 79.4 3.8 55.4 138.6
76.00 145.74 113843 3.97 146.2 868.2 79.6 3.8 57.5 140.9
78.00 146.01 114425 3.99 148.2 872.1 79.7 3.8 59.1 142.6
80.00 145.80 114833 4.00 149.6 874.8 79.8 3.8 60.2 143.8
82.00 145.13 115071 4.01 150.4 876.4 79.9 3.8 60.8 144.5
84.00 143.99 115143 4.01 150.6 876.9 79.9 3.8 61.0 144.7
86.00 142.39 115052 4.01 150.3 876.2 79.9 3.8 60.8 144.5
88.00 140.35 114802 4.00 149.5 874.6 79.8 3.8 60.1 143.7
90.00 137.87 114396 3.99 148.1 871.9 79.7 3.8 59.0 142.5
92.00 134.96 113837 3.97 146.2 868.1 79.6 3.8 57.5 140.9
94.00 131.66 113129 3.95 143.8 863.3 79.5 3.8 55.6 138.8
96.00 127.98 112274 3.92 140.9 857.5 793 3.8 53.3 136.3
98.00 124.11 111276 3.89 137.6 850.7 79.0 3.7 50.7 133.4
100.00 120.05 110155 3.86 133.8 842.9 78.8 3.7 47.8 130.3
102.00 116.12 108927 3.82 129.8 834.3 78.5 3.7 44.7 126.9
104.00 112.32 107637 3.78 125.6 825.2 78.2 3.7 41.5 123.4
106.00 108.64 106312 3.74 121.3 815.7 77.9 3.7 38.2 119.8
108.00 105.09 104969 3.70 117.0 805.9 77.6 3.6 35.1 116.3
110.00 101.65 103618 3.66 112.7 796.0 77.3 3.6 32.0 112.9
112.00 98.32 102266 3.62 108.4 785.8 77.0 3.6 29.0 109.6
114.00 95.10 100916 3.57 104.2 775.6 76.7 3.6 26.1 106.3
116.00 91.99 99569 3.53 100.1 765.2 76.3 3.6 23.3 103.2
118.00 88.98 98224 3.49 96.0 754.7 76.0 3.5 20.6 100.2
120.00 86.07 96882 3.45 92.0 744.0 75.7 3.5 18.0 97.2
s:%lh2QDGdD%calos%wql1 83.25 95541 3.41 r$Sek 10/11100 3:a&3&2 75.4 3.5 15.5 PQ*43 of 14
The Pre serve at Jordan La ke - 1
124.00 80.53 94198 3.36 84.2 722.2 75.1 3.5 13.2 91.7
126.00 77.89 92852 3.32 80.3 710.9 74.7 3.5 11.0 89.2
128.00 75.34 91497 3.28 76.4 699.4 74.4 3.4 8.9 86.7
130.00 72.88 90131 3.24 72.6 687.6 74.1 3.4 6.9 83.0
132.00 70.49 88921 3.20 69.3 676.9 73.8 3.4 5.3 78.0
134.00 68.18 88019 3.17 66.8 668.8 73.6 3.4 4.2 74.4
136.00 65.95 87268 3.15 64.8 662.0 73.4 3.4 3.4 71.6
138.00 63.79 86595 3.13 63.0 655.8 73.2 3.4 2.7 69.0
140.00 61.71 85965 3.11 61.4 650.0 73.0 3.3 2.1 66.8
142.00 59.69 85359 3.09 59.8 644.3 72.9 3.3 1.5 64.6
144.00 57.73 84767 3.07 58.2 638.7 72.7 3.3 1.1 62.6
146.00 55.85 84182 3.05 56.7 633.2 72.6 3.3 0.6 60.7
148.00 54.02 83602 3.03 55.2 627.6 72.4 3.3 0.3 58.9
150.00 52.25 83022 3.01 53.8 622.0 72.3 3.3 0.1 57.1
152.00 50.54 82436 2.99 52.3 616.2 41.6 3.3 0.0 44.9
154.00 48.89 83114 3.01 54.0 622.8 72.3 3.3 0.1 57.4
156.00 47.29 82093 2.98 51.4 612.8 41.4 3.3 0.0 44.7
158.00 45.74 82408 2.99 52.2 615.9 41.6 3.3 0.0 44.9
160.00 44.24 82511 3.00 52.5 616.9 41.7 3.3 0.0 44.9
162.00 42.79 82426 2.99 52.3 616.1 41.6 0.0 41.6
164.00 41.39 82568 3.00 52.6 617.5 41.7 0.0 41.7
166.00 40.04 82531 3.00 52.5 617.1 41.7 0.0 41.7
168.00 38.73 82335 2.99 52.0 615.2 41.5 0.0 41.5
sAl311WO02%caleslwql 1 printect 1a11/003:09 PM Page 14 of 14
ANTI-FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #11

FLOTATION OF RISER

RISER DIMENSIONS
Inside Dimensions Width = 4.0 feet
Length = 4.0 feet

ELEV. @ TOP OF RISER = 408.00
ELEV. BOT. OF RISER = 403.00
H = 5.00 ft
AREA OF RISER = 16.0 SF
VOLUME OF RISER = 80.0 Cubic Feet

DIAMETER OF BARREL = 36 Inch
AREA OF BARREL = 7.1 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 42.4 Cubic Feet

WEIGHT OF WATER DISPLACED = 7638.48 lb
FACTOR OF SAFETY (10%) 8402.33 lb

VOLUME OF CONCRETE ANCHOR = 95.9 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension 4'x4'
Weight of Concrete 6235 lb

ANIT-FLOTATION WEIGHT REQUIRED = 2167 lb
ANIT-FLOTATION VOLUME REQUIRED = 24.7 Cubic Feet

ANTI-FLOTATION PAD REQUIRED
DEPTH = 1.00 ft
WIDTH = I 6.00 ft
LENGTH= 6.00 ft

VOLUME PROVIDED = 36.0 Cubic Feet

O, USE CONCRETE PAD 1'x6'x6'
I
? I j I
FES AT PERMANENT WATER QUALITY POND 911
flow Q in cfs : 77.3
slope S in ft/ft :.005
pipe diameter D in ft : 3
Manning number n :.012
Flow depth (ft) = 3.00
Outlet velocity (fps) = 10.936
ZONE 3
For a pipe diameter of 3.00 feet and
an outlet velocity of 10.936 feet per second:
The recommended apron length is 24.0 feet.
The maximum stone diameter is 17.6.1 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 23 B 22"
.w
WQ#11 Emergency Spillway
Channel Calculator - Bare Earth
Given Input Data:
Shape ........................... Trapezo idal
Solving for ..................... Depth o f Flow
Flowrate ........................ 39.9000 cfs
Slope ........................... 0.0500 ft/ft
Manning's n ..................... 0.0200
Height .......................... 24.0000 in
Bottom width .................... 60.0000 in
Left slope ...................... 0.3300 ft/ft
Right slope ..................... 0.1250 ft/ft
Computed Results:
Depth ........................... 8.2825 in
Velocity ........................ 11.2097 fps
Flow area ....................... 3.5594 ft2
Flow perimeter .................. 77.0688 in
Hydraulic radius ................ 6.6506 in
Top width ....................... 63.7685 in
Area ............................ 10.9100 ft2
Perimeter ....................... 109.459 8 in
Percent full .................... 34.5103 %
Critical Informatio n
Critical depth .................. 0.0000 in
Critical slope .................. 0.0000 ft/ft
Critical velocity .............. 0.0000 fps
Critical area .................. 0.0000 ft2
Critical perimeter .............. 0.0000 in
Critical hydraulic radius ....... 0.0000 in
Critical top width .............. 0.0000 in
Specific energy ................. 0.0000 ft
Minimum energy .................. 0.0000 ft
Froude number ................... 0.0000
Flow condition .................. Critica l
Page 1
TEMPORARY LINER DESIGN
FOR CHANNELS
-RALEIGH-
PROJECT
PROJECT NAt-iE
3ATt;
3Y: _
*ELE B.OSG'
Permissible Shear Stresses
for Riprclp and Temporary
Liners
'EROSION AND SEDIMENTAION CONTROL
PLANNING. AND DESIGN MANUAL -
NORTH' CAROLINA
yd s
T = Sneer Stress in Ib/41t2
y = Unit Weight or Wcter, 62.= Ib/rlt-
d = Fiow depth in it.
s = Cncnnel Grcclem in t./.t.
Permissible Unit Shear Stress, Td
Lining Category Lining Type (lbift')
Tampcrary Woven Pacer Net 0.15
Jute Net 0.45
Fiberglass Rcving:
Singie 0.60
Double 0.35
Straw with Net 1.t5
Curled Wccd mat 1.55
Synthetic Mat 2.00
,a Stone Size (inches)
Gravel Riprap It 0.?0
2 C.?0
Rcck Riprab 6 2.50'
3.20
12 5.c0
15 6.30
18 7.50
21 8.20
24 10.00
C = LINING i!PE REQUIRED: cl.A`?S `' ,?oNE
s = 05 F-QOM:
T = 2 • l5 70:
C 71/-,N N EL
d=
s =
T =
16-
C r-JN N E L
c =
s =
T =
AN X1\1 EL
d =
s =
T =
fl-H AN N EL
s =
T =
LINI?jNG T'PE RECUIFED:
FROM
TO:
LINING TYPE REGUIRED:
FROM:
T0:
LINING TYPE REGUIRED:
FROM:
10:
LINING 717'PE REQUIRED:
FROM:
T0:
? J
WQ#11 Emergency Spillway
Channel Calculator - Riprap Lined
Given Input Data:
Shape ........................... Trapezoidal
Solving for ..................... Depth o f Flow
Flowrate ........................ 39.9000 cfs
Slope ........................... 0.0500 ft/ft
Manning's n ..................... 0.0630
Height .......................... 24.0000 in
Bottom width .................... 60.0000 in
Left slope ...................... 0.3300 ft/ft
Right slope ..................... 0.1250 ft/ft
Computed Results:
Depth ........................... 17.4079 in
Velocity ........................ 5.1603 fps
Flow area ....................... 7.7321 ft2
Flow perimeter .................. 95.8747 in
Hydraulic radius ................ 11.6132 in
Top width ....................... 67.9206 in
Area ........................... 10.9100 ft2
Perimeter ....................... 109.459 8 in
Percent full .................... 72.5330 0
Critical Informati
Critical depth .................
Critical slope ..................
Critical velocity ............. :.
Critical area ...................
Critical perimeter ..............
Critical hydraulic radius .......
Critical top width ..............
Specific energy .................
Minimum energy ..................
Froude number ...................
Flow condition ..................
on
0.0000 in
0.0000 ft/ft
0.0.000 fps
0.0000 ft2
0.0000 in
0.0000 in
0.0000 in
0.0000 ft
0.0000 ft
0.0000
Critical
Page 1
EMPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #12
# Lois s.f./Lot Total
13 6,500 84,500
Roadways 17,860 s.f.
Lots (houses, drives, etc.) 84,500 s.f.
Golf Cart Paths 2,400 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 104,760 s.f.
Total Area = 12.35 ac.
Impervious Area = 2.40 ac.
Impervious Percentage = 19.5%
The storage volume for the 1" storm (Schueier Method) would be:
Rv =.05+.009 (1)
RV= 0.226
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.23207708 ac.ft.
10,109 cf
10,109 c.f. storage required.
12,131 c.t required including an additional 20% for sediment storage
14,472 c.t storage provided.
Eftorage Provided
Incremental Total
Elev. Area (s.f.) Volume (c.f.) Volume (c.f.) Depth (ft.)
414 405
4,442 4,442
416 4,037
2
10,030 14,472
418 5,993 4
Orifice required for 2-5 Day Drawdown
Drawdown cala 4.0 feet of storage so, say 2.0 feet of average head
Using a 1" orifice Q2-day= 6,363
Q = 0.04 cfs. Q5-day= 15,908
So, a 1" Orifice will drawdown pond in 4.55 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
Preserve The Jordan 11 WQ# 12
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
Drainage Area, (DA) = 12.35 acres
Overland Flow
Elevation of most remote point, (Hl) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point', (Hl) = 516.0 feet
Elevation of point of design, (H2) = 409.0 feet
Length of travel, (L) = 875.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 3.2 minutes
Pipe Flow
Elevation of most remote point, (Hl) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mutt. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) => 5.0 minutes
Intensity, (I) = 7.22 inches/hr
Area 1 (Impervious) = 2.40 acres
Area 2 (Pervious) = 9.95 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) => 0.35
Peak Release Rate, (Q10) => 31 cfs

Post-Development off
Drainage Area, (DA) = 12.35 acres
Time of Concentration, (Tc) => 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) => 0.35
Peak Release Rate, (Qu) => 35 cfs
Post-Development Runoff 100-yr
Drainage Area, (DA) = 12.35 acres
Time of Concentration, (Tc) => 5.0 minutes
Intensity, (I) =
Composite Runoff Coefficient, (C) =>
Peak Release Rate, (Q700) =>
sM311V=ZcaLs WqV
9.67 inches
0.35
41 cfs
puled 10MM 11:43 AM
Page 1 of 14
we - Storage Functir
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
414 450 -
416 4,037 4,487 4,487 2.00 8.41 0.69 2.00
418 5,993 10,030 14,517 4.00 9.58 1.39 4.00
420 8,196 14,189 28,706 6.00 10.26 1.79 6.00
Check
Stage Storage
2 4,490
4 14,487
6 28,744
Regression Output:
b-- 1.69 (X Variable Coe1t)
K 1,392
Stage - Storage Equation is of the form: S = (KsxZ)b
Bottom Dry Pond Elevation 414.0 feet
Water Surface Elev. (Q10) _ = ; S. "-t feet
Water Surface Elev. (Q25) _ 4111.!') feet
Water Surface Elev. (Q100) _ 430.03 feet
Barrel
Dia. of Barrel = 24 inches
Area of Barrel, (Ab) = 3.14 sf
Pipe Length, (L) = 76.0 feet
Friction Coeff., (Kp) = 0.01058
Inv. of Barrel = 414.00 feet
Riser
Elev. of Riser Crest = 418.00 feet
Circular.
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 1 " 0.0055
sA1311%00021eaL-MWg12 pined 10191003:28 PM
Page 2 of 14
Rectangular:
Length of Riser =
Width of Riser =
Weir Length =
Area of Riser =
Width of Spillway (Approx.) _
Weir Coefficient =
Crest Elevation =
4 feet
4 feet
16 feet
16 sq.ft.
0 feet
3.0
0 feet
DFGVT
s:%131Iw002lcaks%WgI2 "ed: 10191DO 11:43 AM Page 3 of 14
Peak Inflow, (Qlo) => 31 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in
Q*- 1.88 in. (depth of runoff
Vol= 84,399 cf (vol. of runoff
Time to Peak, (Tp) => 32.82 minutes
(SCS TR-55)
t/tp QQR t Q
(ndn) (Cfs)
0.00 0.000 0 0.00
0.06 0.009 2 0.28
0.12 0.036 4 1.12
0.18 0.080 6 2.47
0.24 0.140 8 4.31
0.30 0.212 10 6.54
0.37 0.295 12 9.10
0.43 0.386 14 11.90
0.49 0.480 16 14.82
0.55 0.576 18 17.76
0.61 0.669 20 20.62
0.67 0.755 22 23.29
0.73 0.832 24 25.67
0.79 0.897 26 27.67
0.85 0.948 28 29.23
0.91 0.982 30 30.28
0.98 0.998 32 30.79
1.04 0.997 34 30.74
1.10 0.977 36 30.13
1.16 0.940 38 28.98
1.22 0.886 40 27.33
1.28 0.822 42 25.35
1.34 0.759 44 23.42
1.40 0.702 46 21.64
1.46 0.648 48 19.99
1.52 0.599 50 18.46
1.58 0.553 52 17.06
1.65 0.511 54 15.76
1.71 0.472 56 14.56
1.77 0.436 58 13.45
y 1.83 0.403 60 12.42
1.89 0.372 62 11.48
1.95 0.344 64 10.60
2.01 0.318 66 9.80
2.07 0.293 68 9.05
2.13 0.271 70 8.36
2.19 0.250 72 7.72
2.26 0.231 74 7.14
2.32 0.214 76 6.59
238 0.197 78 6.09
2.44 0.182 80 5.63
2.50 0.169 82 5.20
2.56 0.156 84 4.80
2.62 0.144 86 4.44
2.68 0.133 88 4.10
2.74 0.123 90 3.79
2.80 0.113 92 3.50
S=
2.66 in.
sA1311WOOZcalosWYg72 prittea 1OVM 11:43 AM Page 4 of 14
2.86 0.105 94 3.23
2.93 0.097 96 2.98
2.99 0.089 98 2.76
3.05 0.083 100 2.55
3.11 0.076 102 2.35
3.17 0.070 104 2.17
3.23 0.065 106 2.01
3.29 0.060 108 1.86
3.35 0.056 110 1.71
3.41 0.051 112 1.58
3.47 0.047 114 1.46
3.53 0.044 116 1.35
3.60 0.040 118 1.25
3.66 0.037 120 1.15
3.72 0.035 122 1.07
3.78 0.032 124 0.98
3.84 0.029 126 0.91
3.90 0.027 128 0.84
3.96 0.025 130 0.78
4.02 0.023 132 0.72
4.08 0.021 134 0.66
4.14 0.020 136 0.61
4.21 0.018 138 0.57
4.27 0.017 140 0.52
4.33 0.016 142 0.48
4.39 0.014 144 0.45
4.45 0.013 146 0.41
4.51 0.012 148 0.38
4.57 0.011 150 0.35
4.63 0.011 152 0.32
4.69 0.010 154 0.30
4.75 0.009 156 0.28
4.81 0.008 158 0.26
4.88 0.008 160 0.24
4.94 0.007 162 0.22
5.00 0.007 164 0.20
5.06 0.006 166 0.19
5.12 0.006 168 0.17
5.18 0.005 170 0.16
5.24 0.005 172 0.15
5.30 0.004 174 0.14
5.36 0.004 176 0.13
s:N3llWOO2+calLsiwal2 pmtect 10MM 11:43 AM Page 5 of 14
Prese
'The rve
J ordan //
WQ# 1
2

Routi
Storm ng
10-yr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(inin) cfs ct (m (efs) cfs (cft) Lcffi ,(Cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.28 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 1.12 34 0.11 0.0 0.0 0.2 0.1 0.0 0.1
6.00 2.47 159 0.28 0.0 0.0 0.8 0.1 0.0 0.1
8.00 4.31 443 0.51 0.0 0.0 1.9 0.2 0.0 0.2
10.00 6.54 942 0.79 0.0 0.0 3.8 0.2 0.0 0.2
12.00 9.10 1704 1.13 0.0 0.0 6.4 0.2 0.0 0.2
14.00 11.90 2770 1.50 0.0 0.0 9.9 0.3 0.0 0.3
16.00 14.82 4167 1.91 0.0 0.0 14.2 0.3 0.0 0.3
18.00 17.76 5910 2.35 0.0 0.0 17.6 0.3 0.0 0.3
20.00 20.62 8002 2.82 0.0 0.0 20.4 0.4 0.0 0.4
22.00 23.29 10434 3.29 0.0 0.0 22.9 0.4 0.0 0.4
24.00 25.67 13183 3.78 0.0 0.0 25.2 0.4 0.0 0.4
26.00 27.67 16213 4.28 7.6 324.6 27.4 0.4 0.0 8.1
28.00 29.23 18565 4.63 26.6 491.6 28.8 0.5 0.0 27.0
30.00 30.28 18832 4.67 29.1 506.7 29.0 0.5 0.0 29.4
32.00 30.79 18933 4.69 30.0 512.2 29.0 0.5 0.0 29.5
34.00 30.74 19088 4.71 31.5 520.6 29.1 0.5 0.0 29.6
36.00 30.13 19226 4.73 32.9 528.0 29.2 0.5 0.0 29.7
38.00 28.98 19281 4.74 33.4 530.8 29.2 0.5 0.0 29.7
40.00 27.33 19194 4.72 32.6 526.3 29.2 0.5 0.0 29.7
42.00 25.35 18916 4.68 29.9 511.3 29.0 0.5 0.0 29.5
44.00 23.42 18419 4.61 25.2 483.2 28.7 0.5 0.0 25.7
46.00 21.64 18150 4.57 22.8 467.1 28.6 0.5 0.0 23.2
48.00 19.99 17960 4.54 21.1 455.3 28.5 0.4 0.0 21.5
50.00 18.46 17773 4.51 19.5 443.4 28.4 0.4 0.0 19.9
52.00 17.06 17597 4.49 18.0 431.9 28.3 0.4 0.0 18.4
54.00 15.76 17431 4.46 16.6 420.6 28.1 0.4 0.0 17.1
56.00 14.56 17274 4.44 15.4 409.6 28.1 0.4 0.0 15.8
58.00 13.45 17125 4.42 14.2 398.9 28.0 0.4 0.0 14.6
60.00 12.42 16984 4.39 13.1 388.4 27.9 0.4 0.0 13.5
62.00 11.48 16851 4.37 12.1 378.2 27.8 0.4 0.0 12.5
64.00 10.60 16725 4.35 11.2 368.3 27.7 0.4 0.0 11.6
66.00 9.80 16605 4.34 10.3 358.6 27.6 0.4 0.0 10.7
68.00 9.05 16492 4.32 9.5 349.1 27.6 0.4 0.0 9.9
70.00 8.36 16384 4.30 8.8 339.9 27.5 0.4 0.0 9.2
72.00 7.72 16283 4.29 8.1 330.8 27.4 0.4 0.0 8.5
74.00 7.14 16186 4.27 7.5 322.0 27.4 0.4 0.0 7.9
76.00 6.59 16095 4.26 6.9 313.4 27.3 0.4 0.0 7.3
78.00 6.09 16008 4.24 6.3 305,0 27.2 0.4 0.0 6.8
80:00 5.63 15926 4.23 5.8 296.8 27.2 0.4 0.0 6.3
82.00 5.20 15847 4.22 5.4 288.8 27.1 0.4 0.0 5.8
84.00 4.80 15773 4.21 5.0 281.0 27.1 0.4 0.0 5.4
86.00 4.44 15703 4.20 4.6 273.3 27.0 0.4 0.0 5.0
88.00 4.10 15636 4.18 4.2 265.8 27.0 0.4 0.0 4.6
90.00 3.79 15573 4.17 3.9 258.5 27.0 0.4 0.0 4.3
92.00 3.50 15512 4.17 3.5 251.3 26.9 0.4 0.0 4.0
94.00 3.23 15455 4.16 3.3 244.2 26.9 0.4 0.0 3.7
96.00 2.98 15400 4.15 3.0 237.4 26.8 0.4 0.0 3.4
98.00 2.76 15349 4.14 2.7 230.6 26.8 0.4 0.0 3.2
100.00 2.55 15299 4.13 2.5 224.0 26.8 0.4 0.0 2.9
102.00 2.35 15252 4.12 2.3 217.5 26.7 0.4 0.0 2.7
104.00 2.17 15208 4.12 2.1 211.1 26.7 0.4 0.0 2.5
106.00 2.01 15165 4.11 1.9 204.8 26.7 0.4 0.0 2.3
108.00 1.86 15124 4.10 1.8 198.6 26.6 0.4 0.0 2.2
110.00 1.71 15086 4.10 1.6 192.6 26.6 0.4 0.0 2.0
112.00 1.58 15049 4.09 1.5 186.6 26.6 0.4 0.0 1.9
114.00 1.46 15013 4.09 1.3 180.7 26.6 0.4 0.0 1.7
116.00 1.35 14980 4.08 1.2 174.8 26.5 0.4 0.0 1.6
118.00 1.25 14948 4.07 1.1 169.1 26.5 0.4 0.0 1.5
120.00 1.15 14917 4.07 1.0 163.3 26.5 0.4 0.0 1.4
s:\1 ks%Wgiz 1.07 14887 4.07 pi&a8 iw= »:4iA9.7 26.5 0.4 0.0 Panel 6 of 14
Pre
The serve Jordan /1 WQ# 1 2
124.00 0.98 14859 4.06 0.8 152.0 26.5 0.4 0.0 1.2
126.00 0.91 14832 4.06 0.7 146.4 26.4 0.4 0.0 1.1
128.00 0.84 14806 4.05 0.6 140.8 26.4 0.4 0.0 1.0
130.00 0.78 14781 4.05 0.6 135.2 26.4 0.4 0.0 1.0
132.00 0.72 14757 4.04 0.5 129.6 26.4 0.4 0.0 0.9
134.00 0.66 14734 4.04 0.4 123.9 26.4 0.4 0.0 0.8
136.00 0.61 14711 4.04 0.4 118.2 26.4 0.4 0.0 0.8
138.00 0.57 14690 4.03 0.3 112.4 26.3 0.4 0.0 0.7
140.00 0.52 14669 4.03 0.3 106.4 26.3 0.4 0.0 0.7
s:u31 IXGDDZwams%Wgl2 pirted 1018/0011:43 AM Page 7 of 14
142.00 0.48 14648 4.03 0.2 100.3 26.3 0.4 0.0 0.6
144.00 0.45 14628 4.02 0.2 93.9 26.3 0.4 0.0 0.6
146.00 0.41 14609 4.02 0.1 87.2 26.3 0.4 0.0 0.6
148.00 0.38 14590 4.02 0.1 80.1 26.3 0.4 0.0 0.5
150.00 0.35 14571 4.01 0.1 72.4 26.3 0.4 0.0 0.5
152.00 0.32 14552 4.01 0.1 63.9 26.2 0.4 0.0 0.5
154.00 0.30 14534 4.01 0.0 54.0 26.2 0.4 0.0 0.5
156.00 0.28 14515 4.00 0.0 41.7 26.2 0.4 0.0 0.4
158.00 0.26 14496 4.00 0.0 23.2 26.2 0.4 0.0 0.4
160.00 0.24 14475 4.00 0.0 0.0 26.2 0.4 0.0 0.4
162.00 0.22 14453 3.99 0.0 0.0 26.2 0.4 0.0 0.4
164.00 0.20 14429 3.99 0.0 0.0 26.2 0.4 0.0 0.4
166.00 0.19 14403 3.99 0.0 0.0 26.1 0.4 0.0 0.4
168.00 0.17 14374 3.98 0.0 0.0 26.1 0.4 0.0 0.4
170.00 0.16 14345 3.98 0.0 0.0 26.1 0.4 0.0 0.4
172.00 0.15 14313 3.97 0.0 0.0 26.1 0.4 0.0 0.4
174.00 0.14 14280 3.97 0.0 0.0 26.1 0.4 0.0 0.4
176.00 0.13 14246 3.96 0.0 0.0 26.0 0.4 0.0 0.4
nu , ,, ?it ull wof+s?r air
Peak Inflow, (Q50) = 35 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runo$7
Vol= 111,067 cf (vol. of runoff
Time to Peak, (Tp) 37.64 minutes
(SCS TR-55)
QLQD t Q
(min) "s2
0.00 0.000 0.00 0.00
0.05 0.007 2.00 0.25
0.11 0.028 4.00 0.98
0.16 0.061 6.00 2.17
0.21 0.107 8.00 3.80
0.27 0.164 10.00 5.81
0.32 0.230 12.00 8.16
0.37 0.304 14.00 10.76
0.43 0.383 16.00 13.56
0.48 0.466 18.00 16.48
0.53 0.549 20.00 19.43
0.58 0.631 22.00 22.33
0.64 0.709 24.00 25.10
0.69 0.782 26.00 27.67
0.74 0.847 28.00 29.96
0.80 0.902 30.00 31.90
0.85 0.946 32.00 33.46
0.90 0.977 34.00 34.57
0.96 0.995 36.00 35.21
1.01 1.000 38.00 35.37
1.06 0.990 40.00 35.04
1.12 0.967 42.00 34.22
1.17 0.931 44.00 32.95
1.22 0.883 46.00 31.25
1.28 0.827 48.00 29.26
1.33 0.772 50.00 27.31
1.38 0.720 52.00 25.49
1.43 0.672 54.00 23.78
1.49 0.627 56.00 22.20
1.54 0.586 58.00 20.72
1.59 0.546 60.00 19.33
1.65 0.510 62.00 18.04
1.70 0.476 64.00 16.84
s11311X00021cales%Wg12 printed 10MM 11:43 AM Page 8 of 14
1.75 0.444 66.00 15.71
1.81 0.415 68.00 14.67
1.86 0.387 70.00 13.69
1.91 0.361 72.00 12.77
1.97 0.337 74.00 11.92
2.02 0.314 76.00 11.13
2.07 0.293 78.00 10.38
2.13 0.274 80.00 9.69
2.18 0.256 82.00 9.04
2.23 0.239 84.00 8.44
2.28 0.223 86.00 7.88
2.34 0.208 88.00 7.35
2.39 0.194 90.00 6.86
2.44 0.181 92.00 6.40
2.50 0.169 94.00 5.97
2.55 0.158 96.00 5.58
2.60 0.147 98.00 5.20
2.66 0.137 100.00 4.86
2.71 0.128 102.00 4.53
2.76 0.120 104.00 4.23
2.82 0.112 106.00 3.95
2.87 0.104 108.00 3.68
2.92 0.097 110.00 3.44
2.98 0.091 112.00 3.21
3.03 0.085 114.00 2.99
3.08 0.079 116.00 2.79
3.13 0.074 118.00 2.61
3.19 0.069 120.00 2.43
3.24 0.064 122.00 2.27
3.29 0.060 124.00 2.12
3.35 0.056 126.00 1.98
3.40 0.052 128.00 1.85
3.45 0.049 130.00 1.72
3.51 0.045 132.00 1.61
3.56 0.042 134.00 1.50
3.61 0.040 136.00 1.40
3.67 0.037 138.00 1.31
3.72 0.034 140.00 1.22
3.77 0.032 142.00 1.14
3.83 0.030 144.00 1.06
3.88 0.028 146.00 0.99
3.93 0.026 148.00 0.93
3.98 0.024 150.00 0.86
4.04 0.023 152.00 0.81
4.09 0.021 154.00 0.75
4.14 0.020 156.00 0.70
4.20 0.019 158.00 0.66
4.25 0.017 160.00 0.61
Storm Routing Table -25-yr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(nun) (cfs) cwt (Cfs) (Cfs) fEkl cfs [Eisl cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.25 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.98 30 0.10 0.0 0.0 0.2 0.1 0.0 0.1
6.00 2.17 139 0.26 0.0 0.0 0.7 0.1 0.0 0.1
8.00 3.80 386 0.47 0.0 0.0 1.7 0.1 0.0 0.1
10.00 5.81 825 0.73 0.0 0.0 3.4 0.2 0.0 0.2
12.00 8:16 1501 1.05 0.0 0.0 5.7 0.2 0.0 0.2
14.00 10.76 2454 1.40 0.0 0.0 8.9 0.2 0.0 0.2
16.00 13.56 3715 1.79 0.0 0.0 12.8 0.3 0.0 0.3
18.00 16.48 5309 2.21 0.0 0.0 16.6 0.3 0.0 0.3
20.00 19.43 7249 2.66 0.0 0.0 19.5 0.3 0.0 0.3
s:%133 Caks%Wgl2 22.33 9539 3.12 PQQQ 101 M 11:43" 22.0 0.4 0.0 Pdljd9 of 14
24.00 25.10 12174 3.61 0.0 0.0 24.4 0.4 0.0 0.4
26.00 27.67 15138 4.11 1.8 200.8 26.7 0.4 0.0 2.2
28.00 29.96 18190 4.58 23.1 469.5 28.6 0.5 0.0 23.6
30.00 31.90 18955 4.69 30.2 513.5 29.1 0.5 0.0 29.5
32.00 33.46 19242 4.73 33.0 528.8 29.2 0.5 0.0 29.7
34.00 34.57 19695 4.80 37.6 552.0 29.5 0.5 0.0 29.9
36.00 35.21 20251 4.88 43.4 578.9 29.8 0.5 0.0 30.2
38.00 35.37 20847 4.96 49.8 606.2 30.1 0.5 0.0 30.6
40.00 35.04 21422 5.04 56.2 631.1 30.4 0.5 0.0 30.9
42.00 34.22 21920 5.11 61.8 651.6 30.7 0.5 0.0 31.1
44.00 32.95 22290 5.16 66.1 666.4 30.9 0.5 0.0 31.3
46.00 31.25 22483 5.19 68.4 673.9 31.0 0.5 0.0 31.4
48.00 29.26 22460 5.19 68.1 673.0 30.9 0.5 0.0 31.4
50.00 27.31 22200 5.15 65.1 662.8 30.8 0.5 0.0 31.3
52.00 25.49 21722 5.08 59.6 643.6 30.6 0.5 0.0 31.0
54.00 23.78 21055 4.99 52.1 615.3 30.2 0.5 0.0 30.7
56.00 22.20 20227 4.87 43.1 577.8 29.8 0.5 0.0 30.2
58.00 20.72 19262 4.73 33.2 529.9 29.2 0.5 0.0 29.7
60.00 19.33 18185 4.58 23.1 469.2 28.6 0.5 0.0 23.5
62.00 18.04 17681 4.50 18.7 437.4 28.3 0.4 0.0 19.1
64.00 16.84 17549 4.48 17.6 428.6 28.2 0.4 0.0 18.0
66.00 15.71 17405 4.46 16.4 418.8 28.1 0.4 0.0 16.9
68.00 14.67 17268 4.44 15.3 409.2 28.0 0.4 0.0 15.8
70.00 13.69 17138 4.42 14.3 399.8 28.0 0.4 0.0 14.7
72.00 12.77 17013 4.40 13.3 390.6 27.9 0.4 0.0 13.8
74.00 11.92 16895 4.38 12.4 381.6 27.8 0.4 0.0 12.9
76.00 11.13 16782 4.36 11.6 372.9 27.7 0.4 0.0 12.0
78.00 10.38 16675 4.35 10.8 364.3 27.7 0.4 0.0 11.2
80.00 9.69 16572 4.33 10.1 355.8 27.6 0.4 0.0 10.5
82.00 9.04 16474 4.32 9.4 347.6 27.5 0.4 0.0 9.8
84.00 8.44 16380 4.30 8.7 339.5 27.5 0.4 0.0 9.2
86.00 7.88 16291 4.29 8.1 331.6 27.4 0.4 0.0 8.6
88.00 7.35 16206 4.27 7.6 323.9 27.4 0.4 0.0 8.0
90.00 6.86 16125 4.26 7.1 316.3 27.3 0.4 0.0 7.5
92.00 6.40 16047 4.25 6.6 308.9 27.3 0.4 0.0 7.0
94.00 5.97 15973 4.24 6.1 301.6 27.2 0.4 0.0 6.6
96.00 5.58 15903 4.23 5.7 294.5 27.2 0.4 0.0 6.1
98.00 5.20 15835 4.22 5.3 287.5 27.1 0.4 0.0 5.7
100.00 4.86 15770 4.21 4.9 280.6 27.1 0.4 0.0 5.4
102.00 4.53 15709 4.20 4.6 273.9 27.0 0.4 0.0 5.0
104.00 4.23 15650 4.19 4.3 267.3 27.0 0.4 0.0 4.7
106.00 3.95 15593 4.18 4.0 260.9 27.0 0.4 0.0 4.4
108.00 3.68 15539 4.17 3.7 254.5 26.9 0.4 0.0 4.1
110.00 3.44 15488 4.16 3.4 248.3 26.9 0.4 0.0 3.8
112.00 3.21 15438 4.15 3.2 242.2 26.9 0.4 0.0 3.6
114'00 2.99 15391 4.15 2.9 236.1 26.8 0.4 0.0 3.4
116.00 2.79 15346 4.14 2.7 230.2 26.8 0.4 0.0 3.2
118.00 2.61 15303 4.13 2.5 224.4 26.8 0.4 0.0 3.0
120.00 2.43 15261 4.13 2.3 218.7 26.7 0.4 0.0 2.8
122.00 2.27 15221 4.12 2.2 213.1 26.7 0.4 0.0 2.6
124.00 2.12 15183 4.11 2.0 207.5 26.7 0.4 0.0 2.4
126.00 1.98 15147 4.11 1.8 202.1 26.7 0.4 0.0 2.3
128.00 1.85 15112 4.10 1.7 196.7 26.6 0.4 0.0 2.1
130.00 1.72 15078 4.10 1.6 191.4 26.6 0.4 0.0 2.0
132.00 1.61 15046 4.09 1.4 186.1 26.6 0.4 0.0 1.9
134.00 1.50 15015 4.09 1.3 180.9 26.6 0.4 0.0 1.7
136.00 1.40 14985 4.08 1.2 175.8 26.6 0.4 0.0 1.6
138.00 1.31 14956 4.08 1.1 170.7 26.5 0.4 0.0 1.5
140.00 1.22 14929 4.07 1.0 165.6 26.5 0.4 0.0 1.4
142.00 1.14 14902 4.07 0.9 160.6 26.5 0.4 0.0 1.4
144.00 1.06 14877 4.06 0.8 155.7 26.5 0.4 0.0 1.3
146.00 0.99 14852 4.06 0.8 150.7 26.5 0.4 0.0 1.2
148.00 0.93 14829 4.06 0.7 145.7 26.4 0.4 0.0 1.1
150.00 0.86 14806 4.05 0.6 140.8 26.4 0.4 0.0 1.0
152.00 0.81 14784 4.05 0.6 135.9 26.4 0.4 0.0 1.0
154.00 0.75 14762 4.04 0.5 130.9 26.4 0.4 0.0 0.9
,.11A IW,n2 0.70 14742 4.04 FAA 101910011:44JU*9 26.4 0.4 0.0 Pag%Ro of 14
158.00 0.66 14722 4.04 0.4 120.8 26.4 0.4 0.0 0.8
160.00 0.61 14702 4.04 0.3 115.7 26.4 0.4 0.0 0.8

og o 10
-inflow 0-yr
Peak Inflow, (Q100) = 41 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoll)
Vol= 154,990 cf (vol. of runoff
Time to Peak, (Tp) => 45.02 minutes
(SCS TR-55)
t(tP QLQP t (Q
(ndn) Ssfs-1
0.00 0.000 0.00 0.00
0.05 0.005 2.00 0.20
0.11 0.019 4.00 0.80
0.16 0.043 6.00 1.78
0.21 0.076 8.00 3.13
0.27 0.117 10.00 4.82
0.32 0.165 12.00 6.82
0.37 0.220 14.00 9.09
0.43 0.281 16.00 11.58
0.48 0.345 18.00 14.25
0.53 0.413 20.00 17.04
0.58 0.482 22.00 19.90
0.64 0.552 24.00 22.78
0.69 0.621 26.00 25.61
0.74 0.687 28.00 28.35
0.80 0.750 30.00 30.94
0.85 0.807 32.00 33.33
0.90 0.859 34.00 35.47
0.96 0.904 36.00 37.32
1.01 0.941 38.00 38.85
1.06 0.970 40.00 40.02
1.12 0.989 42.00 40.82
1.17 0.999 44.00 41.22
1.22 0.999 46.00 41.23
1.28 0.989 48.00 40.83
1.33 0.970 50.00 40.04
1.38 0.942 52.00 38.88
1.43 0.905 54.00 37.36
1.49 0.860 56.00 35.51
1.54 0.813 58.00 33.56
1.59 0.768 60.00 31.68
1.65 0.724 62.00 29.90
1.70 0.684 64.00 28.23
1.75 0.645 66.00 26.64
1.81 0.609 68.00 25.15
1.86 0.575 70.00 23.74
1.91 0.543 72.00 22.40
1.97 0.512 74.00 21.15
2.02 0.484 76.00 19.96
2.07 0.456 78.00 18.84
2.13 0.431 80.00 17.78
2.18 0.407 82.00 16.78
2.23 0.384 84.00 15.84
2.28 0.362 86.00 14.95
2.34 0.342 88.00 14.11
2.39 0.323 90.00 13.32
2.44 0.305 92.00 12.58
2.50 0.288 94.00 11.87
sA1311100021aalos1Wgl2 prWeQ 101910011:43 AM
Page 11 of 14
2.55 0.271 96.00 11.20
2.60 0.256 98.00 10.57
2.66 0.242 100.00 9.98
2.71 0.228 102.00 9.42
2.76 0.215 104.00 8.89
2.82 0.203 106.00 8.39
2.87 0.192 108.00 7.92
2.92 0.181 110.00 7.48
2.98 0.171 112.00 7.06
3.03 0.161 114.00 6.66
3.08 0.152 116.00 6.29
3.13 0.144 118.00 5.94
3.19 0.136 120.00 5.60
3.24 0.128 122.00 5.29
3.29 0.121 124.00 4.99
3.35 0.114 126.00 4.71
3.40 0.108 128.00 4.45
3.45 0.102 130.00 4.20
3.51 0.096 132.00 3.96
3.56 0.091 134.00 3.74
3.61 0.086 136.00 3.53
3.67 0.081 138.00 3.33
3.72 0.076 140.00 3.14
3.77 0.072 142.00 2.97
3.83 0.068 144.00 2.80
3.88 0.064 146.00 2.64
3.93 0.060 148.00 2.50
3.98 0.057 150.00 2.36
4.04 0.054 152.00 2.22
4.09 0.051 154.00 2.10
4.14 0.048 156.00 1.98
4.20 0.045 158.00 1.87
4.25 0.043 160.00 1.77
4.30 0.040 162.00 1.67
4.36 0.038 164.00 1.57
4.41 0.036 166.00 1.48
4.46 0.034 168.00 1.40
s11311%0002kalesVWgl2 printed 10/810011:43 AM Page 12 of 14
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) ct ift-j Ldsl (cfs) (Cfi;) (Cfs) cfs (Cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.20 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.80 24 0.09 0.0 0.0 0.1 0.1 0.0 0.1
6.00 1.78 112 0.23 0.0 0.0 0.6 0.1 0.0 0.1
8.00 3.13 314 0.41 0.0 0.0 1.4 0.1 0.0 0.1
10.00 4.82 674 0.65 0.0 0.0 2.8 0.2 0.0 0.2
12.00 6.82 1232 0.93 0.0 0.0 4.8 0.2 0.0 0.2
14.00 9.09 2027 1.25 0.0 0.0 7.5 0.2 0.0 0.2
16.00 11.58 3089 1.60 0.0 0.0 10.9 0.3 0.0 0.3
18.00 14.25 4447 1.99 0.0 0.0 15.0 0.3 0.0 0.3
20.00 17.04 6121 2.40 0.0 0.0 17.9 0.3 0.0 0.3
22.00 19.90 8126 2.84 0.0 0.0 20.5 0.4 0.0 0.4
24.00 22.78 10472 3.30 0.0 0.0 22.9 0.4 0.0 0.4
26.00 25.61 13160 3.78 0.0 0.0 25.2 0.4 0.0 0.4
28.00 28.35 16184 4.27 7.4 321.8 27.4 0.4 0.0 7.9
30.00 30.94 18640 4.64 27.3 495.9 28.9 0.5 0.0 27.7
32.00 33.33 19028 4.70 30.9 517.4 29.1 0.5 0.0 29.6
34.00 35.47 19480 4.77 35.4 541.2 29.4 0.5 0.0 29.8
36.00 37.32 20158 4.86 42.4 574.6 29.7 0.5 0.0 30.2
38.00 38.85 21013 4.98 51.6 613.5 30.2 0.5 0.0 30.7
40.00 40.02 21995 5.12 62.7 654.6 30.7 0.5 0.0 31.2
42.00 40.82 23055 5.27 75.2 695.6 31.2 0.5 0.0 31.7
44.00 41.22 24146 5.41 88.6 734.6 31.8 0.5 0.0 32.3
46.00 41.23 25222 5.55 102.2 770.5 32.3 0.5 0.0 32.8
48.00 40.83 26236 5.68 115.4 802.4 32.7 0.5 0.0 33.2
50.00 40.04 27147 5.80 127.6 829.6 33.1 0.5 0.0 33.7
52.00 38.88 27914 5.90 137.9 851.5 33.5 0.5 0.0 34.0
54.00 37.36 28501 5.97 146.0 867.7 33.7 0.5 0.0 34.2
56.00 35.51 28876 6.02 151.2 877.9 33.9 0.5 0.0 34.4
58.00 33.56 29010 6.03 153.0 881.5 33.9 0.5 0.0 34.5
60.00 31.68 28903 6.02 151.6 878.6 33.9 0.5 0.0 34.4
62.00 29.90 28576 5.98 147.0 869.8 33.8 0.5 0.0 34.3
64.00 28.23 28052 5.91 139.8 855.3 33.5 0.5 0.0 34.0
66.00 26.64 27353 5.83 130.3 835.6 33.2 0.5 0.0 33.7
68.00 25.15 26502 5.72 118.9 810.5 32.9 0.5 0.0 33.4
70.00 23.74 25516 5.59 106.0 780.0 32.4 0.5 0.0 32.9
72.00 22.40 24414 5.45 92.0 743.8 .31.9 0.5 0.0 32.4
74.00 21.15 23216 5.29 77.1 701.5 31.3 0.5 0.0 31.8
76.00 19.96 21937 5.11 62.0 652.3 30.7 0.5 0.0 31.2
78.00 18.84 20593 4.93 47.0 594.8 30.0 0.5 0.0 30.4
80A0 17.78 19201 4.73 32.6 526.7 29.2 0.5 0.0 29.7
82.00 16.78 17777 4.51 19.5 443.6 28.4 0.4 0.0 20.0
84.00 15.84 17396 4.46 16.3 418.1 28.1 0.4 0.0 16.8
86.00 14.95 17283 4.44 15.4 410.3 28.1 0.4 0.0 15.9
88.00 14.11 17173 4.42 14.6 402.4 28.0 0.4 0.0 15.0
90.00 13.32 17067 4.41 13.7 394.6 27.9 0.4 0.0 14.2
92.00 12.58 16965 4.39 12.9 387.0 27.9 0.4 0.0 13.4
94.00 11.87 16867 4.38 12.2 379.5 27.8 0.4 0.0 12.7
96.00 11.20 16773 4.36 11.5 372.1 27.7 0.4 0.0 12.0
98.00 10.57 16683 4.35 10.9 364.9 27.7 0.4 0.0 11.3
100.00 9.98 16596 4.34 10.2 357.8 27.6 0.4 0.0 10.7
102.00 9.42 16513 4.32 9.7 350.9 27.6 0.4 0.0 10.1
104.00 8.89 16432 4.31 9.1 344.0 27.5 0.4 0.0 9.5
106.00 8.39 16355 4.30 8.6 337.3 27.5 0.4 0.0 9.0
108.00 7.92 16281 4.29 8.1 330.7 27.4 0.4 0.0 8.5
110.00 7.48 16210 4.28 7.6 324.2 27.4 0.4 0.0 8.1
112.00 7.06 16141 4.26 7.2 317.8 27.3 0.4 0.0 7.6
114.00 6.66 16075 4.25 6.8 311.6 27.3 0.4 0.0 7.2
116.00 6.29 16011 4.24 6.4 305.4 27.2 0.4 0.0 6.8
118.00 5.94 15950 4.23 6.0 299.3 27.2 0.4 0.0 6.4
120.00 5.60 15892 4.23 5.6 293.4 27.2 0.4 0.0 6.1
s,.%liuloW*wslwylz 5.29 15835 4.22 ph&a tw=li:429.5 27.1 0.4 0.0 Pa&33of14
124.00 4.99 15780 4.21 5.0 281.7 27.1 0.4 0.0 5.4
126.00 4.71 15728 4.20 4.7 276.1 27.1 0.4 0.0 5.1
128.00 4.45 15678 4.19 4.4 270.5 27.0 0.4 0.0 4.9
130.00 4.20 15629 4.18 4.2 265.0 27.0 0.4 0.0 4.6
132.00 3.96 15582 4.18 3.9 259.6 27.0 0.4 0.0 4.3
134.00 3.74 15537 4.17 3.7 254.2 26.9 0.4 0.0 4.1
136.00 3.53 15493 4.16 3.4 249.0 26.9 0.4 0.0 3.9
138.00 3.33 15452 4.16 3.2 243.8 26.9 0.4 0.0 3.7
140.00 3.14 15411 4.15 3.0 238.7 26.8 0.4 0.0 3.5
142.00 2.97 15372 4.14 2.9 233.7 26.8 0.4 0.0 3.3
144.00 2.80 15335 4.14 2.7 228.8 26.8 0.4 0.0 3.1
146.00 2.64 15299 4.13 2.5 223.9 26.8 0.4 0.0 2.9
148.00 2.50 15264 4.13 2.3 219.1 26.7 0.4 0.0 2.8
150.00 2.36 15230 4.12 2.2 214.3 26.7 0.4 0.0 2.6
152.00 2.22 15197 4.11 2.1 209.6 26.7 0.4 0.0 2.5
154.00 2.10 15166 4.11 1.9 205.0 26.7 0.4 0.0 2.4
156.00 1.98 15136 4.11 1.8 200.4 26.7 0.4 0.0 2.2
158.00 1.87 15107 4.10 1.7 195.9 26.6 0.4 0.0 2.1
160.00 1.77 15078 4.10 1.6 191.4 26.6 0.4 0.0 2.0
162.00 1.67 15051 4.09 1.5 186.9 26.6 0.0 1.5
164.00 1.57 15076 4.10 1.6 191.0 26.6 0.0 1.6
166.00 1.48 15078 4.10 1.6 191.3 26.6 0.0 1.6
168.00 1.40 15068 4.09 1.5 189.8 26.6 0.0 1.5
s:%131110WZ=ies%wgi2 prirded 1 OMM 11:43 AM Page 14 of 14
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND 912-

OF RISER
FLOTATION
,
RISER DIMENSIONS
Inside Dimensions Width = 4.0 feet
Length = 4.0 feet

ELEV. , TOP OF RISER =
ELEV. BOT. OF RISER = 418.00
414.00
H = 4.00 ft
AREA OF RISER = 16.0 SF
VOLUME OF RISER = 64.0 Cubic Feet

DIAMETER OF BARREL = 24 Inch
AREA OF BARREL = 3.1 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 18.8 Cubic Feet

WEIGHT OF WATER DISPLACED = 5169.81 lb
FACTOR OF SAFETY (10%) 5686.79 lb

VOLUME OF CONCRETE ANCHOR = 64.9 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension 4'x4'
Weight of Concrete 5175 lb

EIGHT REQUIRED
NIT-FLOTATION W
512 Ib
NIT-FLOTATION VOLUME REQUIRED 5.8 Cubic Feet
J
ANTI-FLOTATTI0
N PAD REQUIRED
DEPTH = 1.00 ft
WIDTH = 6.00 ft
LENGTH= 6.00 ft

VOLUME PROVIDED = 36.0 Cubic Feet

SO, USE CONCRETE PAD 1'x6'x6'

FES AT PERMANENT WATER QUALITY POND #12
flow Q in cfs : 30.6
slope S in ft/ft :.08
pipe diameter D in ft : 2
Manning number n :.012
Flow depth (ft) = 0.93
Outlet velocity (fps) = 21.39
ZONE 6
For a pipe diameter of 2.0 feet and
an outlet velocity of 21.39 feet per second:
The recommended apron length is 24.00 feet.
The maximum stone diameter is 59 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 23 2 30 «
MPERVIOUS CALCULATION FOR PERMANENT
WATER QUALITY DRY POND #13
# Lots s.f./Lot Total
2 6,500 13,000
Roadways - s.f.
Lots (houses, drives, etc.) 13,000 s.f.
Golf Cart Paths 4,480 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 17,480 s.f.
Total Area = 3.87 ac.
Impervious Area = 0.40 ac.
Impervious Percentage = 10.4%
The storage volume for the 1" storm (Schueler Method) would be:
Rv =.05+.009 (1)
RV= 0.144
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.046311 ac.ft.
2,017 cf
2,017 c.f. storage required.
2,421 c.f. required Including an additional 20% for sediment storage
2,552 c.t storage provided.
torage Provided
Incremental Total
Elev. Area (s.f.) Volume (c.f.) Volume (c.f.) Depth (ft)
434 139
679 679
436 540 2
1,873 2,552
438 1,333 4
Orifice required for 2-5 Day Drawdown
Drawdown cala 4.0 feet of storage so, say 2.0 feet of average head
Using a 1/2" orifice Q2-day= 1,606
Q = 0.01 cfs Q5-day= 4,015
So, a 1/2" Orifice will drawdown pond in 3.18 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The • Jordan 11 WQ# 13
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
Drainage Area, (DA) = 3.87 acres
Overland Flow
Elevation of most remote point, (111) = 0.1 feet
Elevation of point of design, (112) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (111) = 512.0 feet
Elevation of point of design, (H2) = 442.0 feet
Length of travel, (L) = 875.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 3.8 minutes
Pipe Flow
Elevation of most remote point, (HI) = 0.0 feet
Elevation of point of design, (112) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 7.22 inches/hr
Area 1 (Impervious) = 0.40 acres
Area 2 (Pervious) = 3.47 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) _> 0.28
Peak Release Rate, (Q10) _> 8 cfs

Post-Development Runoff
Drainage Area, (DA) = 3.87 acres
Time of Concentration, (Tc) _> 5.0 minutes
Intensity, (I) = 8.29 inches/hr
Composite Runoff Coefficient, (C) _> 0.28
Peak Release Rate, (Qu) _> 9 cfs
Post-Development Runoff 100-yr
Drainage Area, (DA) = 3.87 acres
Time of Concentration, (Tc) 5.0 minutes
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (QI00) _>
s:\1311100021ceks1Wg13
9.67 inches
0.28
10 cfs
panted 10MM 11:59 AM
Page 1 of 14
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
434 39 -
436 440 479 479 2.00 6.17 0.69 2.00
438 1,233 1,673 2,152 4.00 7.67 1.39 4.00
Check
Stage Storage
2 479
4 2,152
6 5,182
Regression Output:
b: 2.17 (X Variable Coed
K 107 (ey4-- `)
Stage - Storage Equation is of the form: S = (KsxZ)
Bottom Dry Pond Elevation 434.0 feet
Water Surface Elev. (Qro) _ 438.60 feet
Water Surface Elev. (Q25) _ 4,',S.67 feet
Water Surface Elev. (Qr00) _ 438.69 feet
Barrel
Dia. of Barrel = 15 inches
Area of Barrel, (Ab) = 1.23 sf
Pipe Length, (L) = 62.0 feet
Friction Coe$:, (Kp) = 0.01980
Inv. of Barrel = 434.00 feet
Riser
Elev. of Riser Crest = 438.00 feet
Circular.
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq. ft.
Water Quality Orifice 0.5 0.0014
sA1311100021eaIcs\Wg13 plnted 1019/00 3:32 PM
Page 2 of 14
Rectangular.
Length of Riser = 2 feet
Width of Riser = 2 feet
Weir Length = 8 feet
Area of Riser = 4 sq.ft.
Emergency Spillway
Width of Spillway (Approx) _
Weir Coefficient
Crest Elevation =
0 feet
3.0
0 feet
DFGVT
s:n311WW2kamsIwgt3 printed: 1019= 11:5aAM Page 3 of 14
Peak Inflow, (Qlo) =>
Time to Peak Calculation:
Time to Peak, (Tp) =>
(SCS TR-55)
8 cfs
CN= 79 P= 3.9 in
Q*= 1.88 in. (depth of runoff
Vol= 26,447 cf (vol. of runoff
40.88 minutes
t/tv 449 t 4
?mm) i?'s2
0.00 0.000 0 0.00
0.05 0.006 2 0.05
0.10 0.023 4 0.18
0.15 0.052 6 0.40
0.20 0.092 8 0.71
0.24 0.141 10 1.09
0.29 0.198 12 1.54
0.34 0.262 14 2.04
0.39 0.333 16 2.58
0.44 0.407 18 3.16
0.49 0.483 20 3.75
0.54 0.560 22 4.34
0.59 0.635 24 4.93
0.64 0.707 26 5.49
0.68 0.774 28 6.01
0.73 0.835 30 6.48
0.78 0.888 32 6.89
0.83 0.932 34 7.23
0.88 0.965 36 7.49
0.93 0.988 38 7.66
0.98 0.999 40 7.75
1.03 0.998 42 7.74
1.08 0.986 44 7.65
1.13 0.962 46 7.46
1.17 0.927 48 7.19
1.22 0.882 50 6.84
1.27 0.831 52 6.44
1.32 0.779 54 6.05
1.37 0.731 56 5.67
1.42 0.686 58 5.32
1.47 0.644 60 5.00
1.52 0.604 62 4.69
1.57 0.567 64 4.40
1.61 0.532 66 4.13
1.66 0.499 68 3.87
1.71 0.469 70 3.63
1.76 0.440 72 3.41
1.81 0.413 74 3.20
1.86 0.387 76 3.00
1.91 0.363 78 2.82
1.96 0.341 80 2.64
2.01 0.320 82 2.48
2.05 0.300 84 2.33
2.10 0.282 86 2.19
2.15 0.264 88 2.05
2.20 0.248 90 1.92
2.25 0.233 92 1.81
S=
2.66 in.
s:11311190D2cabs1Wgt3 printed 1019/0011:59 AM Page 4 of 14
Preserve The 1! WQ# 13
2.30 0.218 94 1.69
2.35 0.205 96 1.59
2.40 0.192 98 1.49
2.45 0.181 100 1.40
2.49 0.169 102 1.31
2.54 0.159 104 1.23
2.59 0.149 106 1.16
2.64 0.140 108 1.09
2.69 0.131 110 1.02
2.74 0.123 112 0.96
2.79 0.116 114 0.90
2.84 0.109 116 0.84
2.89 0.102 118 0.79
2.94 0.096 120 0.74
2.98 0.090 122 0.70
3.03 0.084 124 0.65
3.08 0.079 126 0.61
3.13 0.074 128 0.57
3.18 0.070 130 0.54
3.23 0.065 132 0.51
3.28 0.061 134 0.47
3.33 0.057 136 0.45
3.38 0.054 138 0.42
3.42 0.051 140 0.39
3.47 0.047 142 0.37
3.52 0.045 144 0.35
3.57 0.042 146 0.32
3.62 0.039 148 0.30
3.67 0.037 150 0.29
3.72 0.035 152 0.27
3.77 0.032 154 0.25
3.82 0.030 156 0.24
3.86 0.029 158 0.22
3.91 0.027 160 0.21
3.96 0.025 162 0.19
4.01 0.024 164 0.18
4.06 0.022 166 0.17
4.11 0.021 168 0.16
4.16 0.019 170 0.15
4.21 0.018 172 0.14
4.26 0.017 174 0.13
4.30 0.016 176 0.12
sK1311%0002%caks ql3 Printed 107910011:59 AM Page 5 of 14
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(ndn) (?? icA im (efs) iCf32 (cfs) (cfs) (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.05 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.18 5 0.25 0.0 0.0 0.4 0.0 0.0 0.0
6.00 0.40 24 0.50 0.0 0.0 1.2 0.0 0.0 0.0
8.00 0.71 68 0.81 0.0 0.0 2.5 0.0 0.0 0.0
10.00 1.09 148 1.16 0.0 0.0 4.2 0.1 0.0 0.1
12.00 1.54 272 1.54 0.0 0.0 5.7 0.1 0.0 0.1
14.00 2.04 448 1.94 0.0 0.0 6.8 0.1 0.0 0.1
16.00 2.58 684 2.36 0.0 0.0 7.8 0.1 0.0 0.1
18.00 3.16 984 2.79 0.0 0.0 8.7 0.1 0.0 0.1
20.00 3.75 1352 3.23 0.0 0.0 9.5 0.1 0.0 0.1
22.00 4.34 1790 3.67 0.0 0.0 10.3 0.1 0.0 0.1
24.00 4.93 2299 4.12 1.1 54.3 11.1 0.1 0.0 1.3
26.00 5.49 2739 4.47 8.5 106.1 11.6 0.1 0.0 8.6
28.00 6.01 2360 4.17 1.9 64.5 11.1 0.1 0.0 2.0
30.00 6.48 2838 4.54 10.6 114.1 11.7 0.1 0.0 10.7
32.00 6.89 2328 4.15 1.5 59.5 11.1 0.1 0.0 1.6
34.00 7.23 2962 4.63 13.4 123.2 11.8 0.1 0.0 11.9
36.00 7.49 2395 4.20 2.4 69.6 11.2 0.1 0.0 2.5
38.00 7.66 2992 4.66 14.0 125.2 11.9 0.1 0.0 12.0
40.00 7.75 2474 4.27 3.6 79.7 11.3 0.1 0.0 3.7
42.00 7.74 2957 4.63 13.2 122.8 11.8 0.1 0.0 11.9
44.00 7.65 2453 4.25 3.3 77.1 11.2 0.1 0.0 3.4
46.00 7.46 2964 4.64 13.4 123.3 11.8 0.1 0.0 11.9
48.00 7.19 2425 4.23 2.9 73.6 11.2 0.1 0.0 3.0
50.00 6.84 2933 4.61 12.7 121.1 11.8 0.1 0.0 11.9
52.00 6.44 2324 4.14 1.5 58.8 11.1 0.1 0.0 1.6
54.00 6.05 2910 4.60 12.2 119.5 11.8 0.1 0.0 11.9
56.00 5.67 2209 4.05 0.3 34.0 10.9 0.1 0.0 0.4
58.00 5.32 2843 4.55 10.7 114.5 11.7 0.1 0.0 10.8
60.00 5.00 2182 4.03 0.1 24.6 10.9 0.1 0.0 0.2
62.00 4.69 2756 4.48 8.9 107.5 11.6 0.1 0.0 9.0
64.00 4.40 2240 4.07 0.5 42.3 11.0 0.1 0.0 0.6
66.00 4.13 2690 4.43 7.6 101.8 11.5 0.1 0.0 7.7
68.00 3.87 2266 4.10 0.8 48.1 11.0 0.1 0.0 0.9
70.00 3.63 2623 4.38 6.2 95.6 11.5 0.1 0.0 6.4
72.00 3.41 2297 4.12 1.1 53.9 11.0 0.1 0.0 1.2
74.00 3.20 2558 4.33 5.1 89.1 11.4 0.1 0.0 5.2
76.00 3.00 2323 4.14 1.4 58.5 11.1 0.1 0.0 1.5
78.00 2.82 2498 4.29 4.0 82.5 11.3 0.1 0.0 4.1
80.00 2.64 2341 4.16 1.7 61.5 11.1 0.1 0.0 1.8
82.00 2.48 2446 4.24 3.2 76.2 11.2 0.1 0.0 3.3
84.00 2.33 2351 4.17 1.8 63.0 11.1 0.1 0.0 1.9
86.00 2.19 2402 4.21 2.5 70.6 11.2 0.1 0.0 2.6
88.00 2.05 2350 4.17 1.8 63.0 11.1 0.1 0.0 1.9
90.00 1.92 2369 4.18 2.0 65.8 11.1 0.1 0.0 2.1
92.00 1.81 2342 4.16 1.7 61.7 11.1 0.1 0.0 1.8
94.00 1.69 2344 4.16 1.7 62.0 11.1 0.1 0.0 1.8
96.00 1.59 2330 4.15 1.5 59.7 11.1 0.1 0.0 1.6
98.00 1.49 2325 4.15 1.5 58.9 11.1 0.1 0.0 1.6
100.00 1.40 2316 4.14 1.3 57.3 11.1 0.1 0.0 1.5
102.00 1.31 2309 4.13 1.3 56.2 11.1 0.1 0.0 1.4
104.00 1.23 2302 4.13 1.2 54.9 11.1 0.1 0.0 1.3
106.00 1.16 2295 4.12 1.1 53.7 11.0 0.1 0.0 1.2
108.00 1.09 2288 4.12 1.0 52.4 11.0 0.1 0.0 1.1
110.00 1.02 2282 4.11 1.0 51.2 11.0 0.1 0.0 1.1
112.00 0.96 2276 4.10 0.9 50.1 11.0 0.1 0.0 1.0
114.00 0.90 2270 4.10 0.8 48.9 11.0 0.1 0.0 0.9
116.00 0.84 2265 4.10 0.8 47.8 11.0 0.1 0.0 0.9
118.00 0.79 2260 4.09 0.7 46.6 11.0 0.1 0.0 0.8
120.00 0.74 2255 4.09 0.7 45.5 11.0 0.1 0.0 0.8
51.42 16slwa13 0.70 2250 4.08 iQffid im/0011:44u,8 11.0 0.1 0.0 P406 of 14
'The
Pre serve Jordan 11 WQ# 1 3
124.00 0.65 2245 4.08 0.6 43.4 11.0 0.1 0.0 0.7
126.00 0.61 2240 4.08 0.5 42.3 11.0 0.1 0.0 0.6
128.00 0.57 2236 4.07 0.5 41.3 11.0 0.1 0.0 0.6
130.00 0.54 2232 4.07 0.5 40.3 11.0 0.1 0.0 0.6
132.00 0.51 2228 4.06 0.4 39.2 11.0 0.1 0.0 0.5
134.00 0.47 2224 4.06 0.4 38.2 11.0 0.1 0.0 0.5
136.00 0.45 2220 4.06 0.4 37.2 10.9 0.1 0.0 0.5
138.00 0.42 2217 4.06 0.3 363 10.9 0.1 0.0 0.4
140.00 0.39 2213 4.05 0.3 35.3 10.9 0.1 0.0 0.4
s:11311109021eaks%Wgl3 printed 1019/00 11:59 AM Page 7 of 14
Pre
The serve
J ordan i/ WQ# 13
142.00 0.37 2210 4.05 0.3 34.3 10.9 0.1 0.0 0.4
144.00 0.35 2207 4.05 0.3 33.4 10.9 0.1 0.0 0.4
146.00 0.32 2204 4.04 0.2 32.4 10.9 0.1 0.0 0.3
148.00 0.30 2201 4.04 0.2 31.5 10.9 0.1 0.0 0.3
150.00 0.29 2198 4.04 0.2 30.5 10.9 0.1 0.0 0.3
152.00 0.27 2195 4.04 0.2 29.6 10.9 0.1 0.0 0.3
154.00 0.25 2192 4.03 0.2 28.6 10.9 0.1 0.0 0.3
156.00 0.24 2190 4.03 0.2 27.7 10.9 0.1 0.0 0.3
158.00 0.22 2187 4.03 0.1 26.7 10.9 0.1 0.0 0.2
160.00 0.21 2185 4.03 0.1 25.8 10.9 0.1 0.0 0.2
162.00 0.19 2182 4.03 0.1 24.8 10.9 0.1 0.0 0.2
164.00 0.18 2180 4.02 0.1 23.8 10.9 0.1 0.0 0.2
166.00 0.17 2177 4.02 0.1 22.8 10.9 0.1 0.0 0.2
168.00 0.16 2175 4.02 0.1 21.8 10.9 0.1 0.0 0.2
170.00 0.15 2173 4.02 0.1 203 10.9 0.1 0.0 0.2
172.00 0.14 2171 4.02 0.1 19.6 10.9 0.1 0.0 0.2
174.00 0.13 2169 4.01 0.0 18.5 10.9 0.1 0.0 0.2
176.00 0.12 2167 4.01 0.0 17.3 10.9 0.1 0.0 0.1

Inflow o!
Peak Inflow, (Q50) = 9 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 34,804 cf (vol. of runoff
Time to Peak, (Tp) 46.90 minutes
(SCS TR-55)
t!_pt Q/QA t Q
(niin) (efs)
0.00 0.000 0.00 0.00
0.04 0.004 2.00 0.04
0.09 0.018 4.00 0.16
0.13 0.040 6.00 0.35
0.17 0.070 8.00 0.62
0.21 0.108 10.00 0.96
0.26 0.153 12.00 1.36
0.30 0.204 14.00 1.82
0.34 0.261 16.00 2.32
0.38 0.322 18.00 2.86
0.43 0.386 20.00 3.43
0.47 0.452 22.00 4.02
0.51 0.518 24.00 4.61
0.55 0.585 26.00 5.21
0.60 0.650 28.00 5.79
0.64 0.712 30.00 6.34
0.68 0.771 32.00 6.86
0.73 0.825 34.00 7.34
0.77 0.873 36.00 7.77
0.81 0.914 38.00 8.13
0.85 0.948 40.00 8.43
0.90 0.973 42.00 8.66
0.94 0.991 44.00 8.82
0.98 0.999 46.00 8.89
1.02 0.999 48.00 8.89
1.07 0.989 50.00 8.80
1.11 0.971 52.00 8.64
1.15 0.944 54.00 8.40
1.19 0.910 56.00 8.10
1.24 0.868 58.00 7.72
1.28 0.823 60.00 7.32
1.32 0.778 62.00 6.92
1.36 0.736 64.00 6.55
.:%1311UXKrAca1cs1Wg13 prided 10/8/0011:58 AM
Page S of 14
Preserve The i /! WQ# 13
1.41 0.696 66.00 6.20
1.45 0.659 68.00 5.86
1.49 0.623 70.00 5.55
1.54 0.590 72.00 5.25
1.58 0.558 74.00 4.97
1.62 0.528 76.00 4.70
1.66 0.499 78.00 4.44
1.71 0.472 80.00 4.20
1.75 0.447 82.00 3.98
1.79 0.423 84.00 3.76
1.83 0.400 86.00 3.56
1.88 0.378 88.00 3.37
1.92 0.358 90.00 3.19
1.96 0.339 92.00 3.01
2.00 0.320 94.00 2.85
2.05 0.303 96.00 2.70
2.09 0.287 98.00 2.55
2.13 0.271 100.00 2.41
2.18 0.257 102.00 2.28
2.22 0.243 104.00 2.16
2.26 0.230 106.00 2.04
2.30 0.217 108.00 1.93
2.35 0.206 110.00 1.83
2.39 0.195 112.00 1.73
2.43 0.184 114.00 1.64
2.47 0.174 116.00 1.55
2.52 0.165 118.00 1.47
2.56 0.156 120.00 1.39
2.60 0.147 122.00 1.31
2.64 0.140 124.00 1.24
2.69 0.132 126.00 1.17
2.73 0.125 128.00 1.11
2.77 0.118 130.00 1.05
2.81 0.112 132.00 0.99
2.86 0.106 134.00 0.94
2.90 0.100 136.00 0.89
2.94 0.095 138.00 0.84
2.99 0.090 140.00 0.80
3.03 0.085 142.00 0.75
3.07 0.080 144.00 0.71
3.11 0.076 146.00 0.67
3.16 0.072 148.00 0.64
3.20 0.068 150.00 0.60
3.24 0.064 152.00 0.57
3.28 0.061 154.00 0.54
3.33 0.057 156.00 0.51
3.37 0.054 158.00 0.48
3.41 0.051 160.00 0.46
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) Loki cwt (ft) cfs (cfs) cfs (cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.16 5 0.24 0.0 0.0 0.4 0.0 0.0 0.0
6.00 0.35 21 0.47 0.0 0.0 1.1 0.0 0.0 0.0
8.00 0.62 59 0.76 0.0 0.0 2.2 0.0 0.0 0.0
10.00 0.96 128 1.09 0.0 0.0 3.8 0.1 0.0 0.1
12.00 1.36 237 1.45 0.0 0.0 5.4 0.1 0.0 0.1
14.00 1.82 393 1.83 0.0 0.0 6.5 0.1 0.0 0.1
16.00 2.32 603 2.22 0.0 0.0 7.5 0.1 0.0 0.1
18.00 2.86 872 2.64 0.0 0.0 8.4 0.1 0.0 0.1
20.00 3.43 1205 3.06 0.0 0.0 9.2 0.1 0.0 0.1
s:%l9 callMWgl3 4.02 1605 3.49 Aad i mm 1144 10.0 0.1 0.0 P9W 9 of 14
24.00 4.61 2076 3.93 0.0 0.0 10.7 0.1 0.0 0.1
26.00 5.21 2617 4.38 6.1 95.0 11.4 0.1 0.0 6.2
28.00 5.79 2493 4.28 3.9 81.9 11.3 0.1 0.0 4.0
30.00 6.34 2703 4.44 7.8 102.9 11.5 0.1 0.0 7.9
32.00 6.86 2515 4.30 4.3 84.4 11.3 0.1 0.0 4.4
34.00 7.34 2809 4.52 10.0 111.8 11.7 0.1 0.0 10.1
36.00 7.77 2477 427 3.7 80.1 11.3 0.1 0.0 3.8
38.00 8.13 2956 4.63 13.2 122.7 11.8 0.1 0.0 11.9
40.00 8.43 2499 4.29 4.0 82.6 113 0.1 0.0 4.1
42.00 8.66 3015 4.67 14.6 126.8 11.9 0.1 0.0 12.0
44.00 8.82 2614 4.38 6.1 94.7 11.4 0.1 0.0 6.2
46.00 8.89 2930 4.61 12.6 120.9 11.8 0.1 0.0 11.9
48.00 8.89 2568 4.34 5.2 90.1 11.4 0.1 0.0 53
50.00 8.80 2994 4.66 14.1 125.4 11.9 0.1 0.0 12.0
52.00 8.64 2613 4.37 6.1 94.6 11.4 0.1 0.0 6.2
54.00 8.40 2910 4.60 12.2 119.5 11.8 0.1 0.0 11.9
56.00 8.10 2492 4.28 3.9 81.8 11.3 0.1 0.0 4.0
58.00 7.72 2981 4.65 13.8 124.5 11.9 0.1 0.0 12.0
60.00 7.32 2472 4.26 3.6 79.4 11.3 0.1 0.0 3.7
62.00 6.92 2907 4.60 12.1 119.3 11.8 0.1 0.0 11.9
64.00 6.55 2312 4.13 1.3 56.6 11.1 0.1 0.0 1.4
66.00 6.20 2929 4.61 12.6 120.8 11.8 0.1 0.0 11.9
68.00 5.86 2244 4.08 0.6 43.1 11.0 0.1 0.0 0.7
70.00 5.55 2866 4.57 11.2 116.2 11.7 0.1 0.0 11.3
72.00 5.25 2172 4.02 0.1 20.2 10.9 0.1 0.0 0.2
74.00 4.97 2782 4.50 9.4 109.6 11.6 0.1 0.0 9.5
76.00 4.70 2234 4.07 0.5 40.8 11.0 0.1 0.0 0.6
78.00 4.44 2727 4.46 8.3 105.0 11.6 0.1 0.0 8.4
80.00 4.20 2253 4.09 0.7 45.3 11.0 0.1 0.0 0.8
82.00 3.98 2665 4.41 7.1 99.6 11.5 0.1 0.0 7.2
84.00 3.76 2283 4.11 1.0 51.3 11.0 0.1 0.0 1.1
86.00 3.56 2605 4.37 5.9 93.9 11.4 0.1 0.0 6.0
88.00 3.37 2310 4.13 1.3 56.3 11.1 0.1 0.0 1.4
90.00 3.19 2548 4.32 4.9 88.0 11.4 0.1 0.0 5.0
92.00 3.01 2333 4.15 1.6 60.2 11.1 0.1 0.0 1.7
94.00 2.85 2495 4.28 4.0 82.1 11.3 0.1 0.0 4.1
96.00 2.70 2349 4.16 1.8 62.8 11.1 0.1 0.0 1.9
98.00 2.55 2448 4.24 3.2 76.5 11.2 0.1 0.0 3.3
100.00 2.41 2357 4.17 1.9 64.1 11.1 0.1 0.0 2.0
102.00 2.28 2409 4.21 2.6 71.4 11.2 0.1 0.0 2.7
104.00 2.16 2357 4.17 1.9 64.1 11.1 0.1 0.0 2.0
106.00 2.04 2378 4.19 2.2 67.2 11.2 0.1 0.0 2.3
108.00 1.93 2351 4.17 1.8 63.1 11.1 0.1 0.0 1.9
110.00 1.83 2355 4.17 1.8 63.7 11.1 0.1 0.0 2.0
112.00 1.73 2340 4.16 1.7 61.4 11.1 0.1 0.0 1.8
114.00 1.64 2337 4.15 1.6 60.8 11.1 0.1 0.0 1.7
116.00 1.55 2327 4.15 1.5 59.3 11.1 0.1 0.0 1.6
118.00 1.47 2322 4.14 1.4 58.3 11.1 0.1 0.0 1.5
120.00 1.39 2314 4.14 1.3 57.1 11.1 0.1 0.0 1.4
122.00 1.31 2308 4.13 1.3 56.0 11.1 0.1 0.0 1.4
124.00 1.24 2302 4.13 1.2 54.9 11.1 0.1 0.0 1.3
126.00 1.17 2296 4.12 1.1 53.8 11.0 0.1 0.0 1.2
128.00 1.11 2290 4.12 1.1 52.8 11.0 0.1 0.0 1.2
130.00 1.05 2285 4.11 1.0 51.7 11.0 0.1 0.0 1.1
132.00 0.99 2279 4.11 0.9 50.7 11.0 0.1 0.0 1.0
134.00 0.94 2274 4.10 0.9 49.7 11.0 0.1 0.0 1.0
136.00 0.89 2269 4.10 0.8 48.7 11.0 0.1 0.0 0.9
138.00 0.84 2264 4.10 0.8 47.7 11.0 0.1 0.0 0.9
140.00 0.80 2260 4.09 0.7 46.7 11.0 0.1 0.0 0.8
142.00 0.75 2255 4.09 0.7 45.7 11.0 0.1 0.0 0.8
144.00 0.71 2251 4.08 0.6 44.8 11.0 0.1 0.0 0.7
146.00 0.67 2247 4.08 0.6 43.8 11.0 0.1 0.0 0.7
148.00 0.64 2243 4.08 0.6 42.9 11.0 0.1 0.0 0.7
150.00 0.60 2239 4.07 0.5 42.0 11.0 0.1 0.0 0.6
152.00 0.57 2235 4.07 0.5 41.1 11.0 0.1 0.0 0.6
154.00 0.54 2232 4.07 0.5 40.2 11.0 0.1 0.0 0.6
s:NS749P, l16ltWgl3 0.51 2228 4.06 ?14e, tomloo 1,:S ? 11.0 0.1 0.0 Pa lO ot'14
Preserve !i
!The
WQ# 13
158.00 0.48 2225 4.06 0.4 38.4 11.0 0.1 0.0 0.5
160.00 0.46 2221 4.06 0.4 37.5 10.9 0.1 0.0 0.5
og i 100-yr
Peak Inflow, (Q100) = 10 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoff
Vol= 48,568 of (vol. of runoff)
Time to Peak, (Tp) => 56.09 minutes
(SCS TR-55)
Utp Q/Qp t Q
(ndn) 55&2
0.00 0.000 0.00 0.00
0.04 0.003 2.00 0.03
0.09 0.012 4.00 0.13
0.13 0.028 6.00 0.29
0.17 0.049 8.00 0.51
0.21 0.076 10.00 0.79
0.26 0.109 12.00 1.13
0.30 0.146 14.00 1.52
0.34 0.188 16.00 1.95
0.38 0.233 18.00 2.42
0.43 0.282 20.00 2.93
0.47 0.334 22.00 3.47
0.51 0.388 24.00 4.02
0.55 0.443 26.00 4.60
0.60 0.499 28.00 5.18
0.64 0.555 30.00 5.76
0.68 0.610 32.00 6.33
0.73 0.664 34.00 6.89
0.77 0.715 36.00 7.43
0.81 0.765 38.00 7.94
0.85 0.810 40.00 8.41
0.90 0.852 42.00 8.85
0.94 0.890 44.00 9.24
0.98 0.922 46.00 9.57
1.02 0.950 48.00 9.86
1.07 0.971 50.00 10.08
1.11 0.987 52.00 10.25
1.15 0.997 54.00 10.35
1.19 1.000 56.00 10.38
1.24 0.997 58.00 10.35
1.28 0.988 60.00 10.26
1.32 0.973 62.00 10.10
1.36 0.952 64.00 9.88
1.41 0.925 66.00 9.60
1.45 0.893 68.00 9.27
1.49 0.856 70.00 8.89
1.54 0.818 72.00 8.49
1.58 0.781 74.00 8.11
1.62 0.746 76.00 7.74
1.66 0.712 78.00 7.39
1.71 0.680 80.00 7.06
1.75 0.649 82.00 6.74
1.79 0.619 84.00 6.43
1.83 0.591 86.00 6.14
1.88 0.565 88.00 5.86
1.92 0.539 90.00 5.60
1.96 0.515 92.00 5.34
2.00 0.491 94.00 5.10
sA1311%0002%ca1csAWg13 printed 1OM=11:59AM
Page 11 of 14
Preserve The Jordan // WQ# 13
2.05 0.46 96.00 4.87
2.09 0.448 98.00 4.65
2.13 0.428 100.00 4.44
2.18 0.408 102.00 4.24
2.22 0.390 104.00 4.05
2.26 0.372 106.00 3.86
2.30 0.355 108.00 3.69
2.35 0.339 110.00 3.52
2.39 0.324 112.00 3.36
2.43 0.309 114.00 3.21
2.47 0.295 116.00 3.06
2.52 0.282 118.00 2.92
2.56 0.269 120.00 2.79
2.60 0.257 122.00 2.67
2.64 0.245 124.00 2.54
2.69 0.234 126.00 2.43
2.73 0.223 128.00 2.32
2.77 0.213 130.00 2.21
2.81 0.204 132.00 2.11
2.86 0.194 134.00 2.02
2.90 0.186 136.00 1.93
2.94 0.177 138.00 1.84
2.99 0.169 140.00 1.76
3.03 0.162 142.00 1.68
3.07 0.154 144.00 1.60
3.11 0.147 146.00 1.53
3.16 0.141 148.00 1.46
3.20 0.134 150.00 1.39
3.24 0.128 152.00 1.33
3.28 0.122 154.00 1.27
3.33 0.117 156.00 1.21
3.37 0.111 158.00 1.16
3.41 0.106 160.00 1.10
3.45 0.102 162.00 1.05
3.50 0.097 164.00 1.01
3.54 0.093 166.00 0.96
3.58 0.088 168.00 0.92
sA1711WWZ2 lcelwal3 printed: 1019M 11:59 AM Page 12 of 14
Pre
The serve DD WQ# 13
Rou
Storm ting 100-yr
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(mm) (cfs) Lcft- (ut (cfs) (cfs) (Cfs) (Cfs) (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.03 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
4.00 0.13 4 0.22 0.0 0.0 0.3 0.0 0.0 0.0
6.00 0.29 17 0.42 0.0 0.0 0.9 0.0 0.0 0.0
8.00 0.51 47 0.69 0.0 0.0 1.9 0.0 0.0 0.0
10.00 0.79 104 0.99 0.0 0.0 3.3 0.1 0.0 0.1
12.00 1.13 192 1.31 0.0 0.0 4.9 0.1 0.0 0.1
14.00 1.52 321 1.66 0.0 0.0 6.0 0.1 0.0 0.1
16.00 1.95 494 2.03 0.0 0.0 7.0 0.1 0.0 0.1
18.00 2.42 719 2.41 0.0 0.0 7.9 0.1 0.0 0.1
20.00 2.93 1000 2.81 0.0 0.0 8.7 0.1 0.0 0.1
22.00 3.47 1341 3.22 0.0 0.0 9.5 0.1 0.0 0.1
24.00 4.02 1746 163 0.0 0,0 10.2 0.1 0.0 0.1
26.00 4.60 2217 4.05 0.3 36.2 10.9 0.1 0.0 0.4
28.00 5.18 2715 4.45 8.0 104.0 11.6 0.1 0.0 8.1
30.00 5.76 2358 4.17 1.9 64.2 11.1 0.1 0.0 2.0
32.00 6.33 2809 4.52 10.0 111.8 11.7 0.1 0.0 10.1
34.00 6.89 2356 4.17 1.9 63.9 11.1 0.1 0.0 2.0
36.00 7.43 2946 4.62 13.0 122.1 11.8 0.1 0.0 11.9
38.00 7.94 2406 4.21 2.6 71.1 11.2 0.1 0.0 2.7
40.00 8.41 3038 4.69 15.1 128.3 11.9 0.1 0.0 12.0
42.00 8.85 2604 4.37 5.9 93.7 11.4 0.1 0.0 6.0
44.00 9.24 2946 4.62 13.0 122.1 11.8 0.1 0.0 11.9
46.00 9.57 2623 4.38 6.2 95.6 11.5 0.1 0.0 6.4
48.00 9.86 3010 4.67 14.5 126.5 11.9 0.1 0.0 12.0
50.00 10.08 2753 4.48 8.8 107.2 11.6 0.1 0.0 8.9
52.00 10.25 2892 4.58 11.8 118.1 11.8 0.1 0.0 11.9
54.00 10.35 2697 4.44 7.7 102.4 11.5 0.1 0.0 7.8
56.00 10.38 3004 4.67 14.3 126.1 11.9 0.1 0.0 12.0
58.00 10.35 2811 4.52 10.0 111.9 11.7 0.1 0.0 10.1
60.00 10.26 2836 4.54 10.6 113.9 11.7 0.1 0.0 10.7
62.00 10.10 2785 4.51 9.5 109.9 11.6 0.1 0.0 9.6
64.00 9.88 2846 4.55 10.8 114.7 11.7 0.1 0.0 10.9
66.00 9.60 2725 4.46 8.2 104.8 11.6 0.1 0.0 8.3
68.00 9.27 2876 4.57 11.4 116.9 11.7 0.1 0.0 11.5
70.00 8.89 2603 4.37 5.9 93.6 11.4 0.1 0.0 6.0
72.00 8.49 2952 4.63 13.1 122.5 11.8 0.1 0.0 11.9
74.00 8.11 2539 4.32 4.7 87.0 11.4 0.1 0.0 4.8
76.00 7.74 2933 4.61 12.7 121.2 11.8 0.1 0.0 11.9
78.00 7.39 2432 4.23 3.0 74.5 11.2 0.1 0.0 3.1
80.00 7.06 2951 4.63 13.1 122.4 11.8 0.1 0.0 11.9
82.00 6.74 2366 4.18 2.0 65.3 11.1 0.1 0.0 2.1
84.00 6.43 2922 4.61 12.5 120.4 11.8 0.1 0.0 11.9
86.00 6.14 2265 4.10 0.8 47.9 11.0 0.1 0.0 0.9
88.00 5.86 2895 4.59 11.9 118.4 11.8 0.1 0.0 11.9
90.00 5.60 2174 4.02 0.1 21.1 10.9 0.1 0.0 0.2
92.00 5.34 2825 4.53 10.3 113.0 11.7 0.1 0.0 10.4
94.00 5.10 2213 4.05 0.3 35.4 10.9 0.1 0.0 0.4
96.00 4.87 2775 4.50 9.3 109.0 11.6 0.1 0.0 9.4
98.00 4.65 2233 4.07 0.5 40.6 11.0 0.1 0.0 0.6
100.00 4.44 2721 4.46 8.2 104.5 11.6 0.1 0.0 8.3
102.00 4.24 2261 4.09 0.7 46.9 11.0 0.1 0.0 0.8
104.00 4.05 2668 4.42 7.1 99.8 11.5 0.1 0.0 7.2
106.00 3.86 2287 4.11 1.0 52.2 11.0 0.1 0.0 1.1
108.00 3.69 2616 4.38 6.1 94.9 11.4 0.1 0.0 6.2
110.00 3.52 2312 4.13 1.3 56.7 11.1 0.1 0.0 1.4
112.00 3.36 2565 4.34 5.2 89.8 11.4 0.1 0.0 5.3
114.00 3.21 2334 4.15 1.6 60.4 11.1 0.1 0.0 1.7
116.00 3.06 2517 4.30 4.3 84.7 11.3 0.1 0.0 4.4
118.00 2.92 2351 4.17 1.8 63.1 11.1 0.1 0.0 1.9
120.00 2.79 2474 4.27 3.6 79.6 11.3 0.1 0.0 3.7
s:Nl3ics\wc03 2.67 2362 4.18 A-ad 10/8=11:6 8 11.1 0.1 0.0 Pa§& 13 of 14
The Pre serve at Jordan I
124.00 2.54 2436 4.24 3.0 75.0 11.2 0.1 0.0 3.1
126.00 2.43 2367 4.18 2.0 65.5 11.1 0.1 0.0 2.1
128.00 2.32 2405 4.21 2.5 70.8 11.2 0.1 0.0 2.7
130.00 2.21 2365 4.18 2.0 65.2 11.1 0.1 0.0 2.1
132.00 2.11 2380 4.19 2.2 67.4 11.2 0.1 0.0 2.3
134.00 2.02 2358 4.17 1.9 64.1 11.1 0.1 0.0 2.0
136.00 1.93 2361 4.17 1.9 64.6 11.1 0.1 0.0 2.0
138.00 1.84 2348 4.16 1.8 62.6 11.1 0.1 0.0 1.9
140.00 1.76 2345 4.16 1.7 62.2 11.1 0.1 0.0 1.8
142.00 1.68 2337 4.15 1.6 60.8 11.1 0.1 0.0 1.7
144.00 1.60 2332 4.15 1.5 60.0 11.1 0.1 0.0 1.7
146.00 1.53 2325 4.15 1.5 59.0 11.1 0.1 0.0 1.6
148.00 1.46 2320 4.14 1.4 58.1 11.1 0.1 0.0 1.5
150.00 1.39 2314 4.14 1.3 57.1 11.1 0.1 0.0 1.4
152.00 1.33 2309 4.13 1.3 56.2 11.1 0.1 0.0 1.4
154.00 1.27 2304 4.13 1.2 55.2 11.1 0.1 0.0 1.3
156.00 1.21 2299 4.12 1.1 54.3 11.1 0.1 0.0 1.3
158.00 1.16 2294 4.12 1.1 53.4 11.0 0.1 0.0 1.2
160.00 1.10 2289 4.12 1.0 52.5 11.0 0.1 0.0 1.1
162.00 1.05 2284 4.11 1.0 51.7 11.0 0.0 1.0
164.00 1.01 2293 4.12 1.1 53.2 11.0 0.0 1.1
166.00 0.96 2284 4.11 1.0 51.6 11.0 0.0 1.0
168.00 0.92 2282 4.11 1.0 51.1 11.0 0.0 1.0
sAl3»'oo02UMICSI ai3 protect 10MID011:59MA Page 14 of 14
ANTI-FLOTATION DESIGN FOR PERMANENT WATER QUAL ITY POND #13

FLOTATION OF RISER

RISER DIMENSIONS
Inside Dimensions Width = 2.0 feet
Length = 2.0 feet

ELEV. TOP OF RISER = 438.00
ELEV. BOT. OF RISER = 434.00
H = 4.00 ft
AREA OF RISER = 4.0 SF
VOLUME OF RISER = 16.0 Cubic Feet

DIAMETER OF BARREL = 15 Inch
AREA OF BARREL = I 1.2 SF
EXPOSED LENGTH = 6.00 ft
VOLUME OF BARREL = 7.4 Cubic Feet

WEIGHT OF WATER DISPLACED = 1457.86 lb
FACTOR OF SAFETY (10%) I 1603.64 lb

VOLUME OF CONCRETE ANCHOR = 18.3 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
Inside Dimension 2'x2'
Weight of Concrete I 2600 lb

ANIT-FLOTATION WEIGHT REQUIRED = -996 lb
ANIT-FLOTATION VOLUME REQUIRED = -11.4 Cubic Feet
I
ANTI-FLOTATION PAD REQUIRED
DEPTH =
WIDTH =
LENGTH=

VOLUME PROVIDED = 0.0 Cubic Feet

O, NO COCNCRETE PAD REQUIRED

FES AT PERMANENT WATER QUALITY POND 913
flow Q in cfs : 11.9 Flow depth (ft) = 0.70
slope S in ft/ft :.078 Outlet velocity (fps) = 16.691
pipe diameter Din ft : 1.25
Manning number n :.012
ZONE 3
For a pipe diameter of 1.25 feet and
an outlet velocity of 16.69 feet per second:
The recommended apron length is 10.00 feet.
The maximum stone diameter is 37.7 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 13 B 22
V PERVIOUS CALCULATION FOR PERMANENT
18,730 s.f.
Lams (houses, drives, etc.) 84,500 s.f.
Golf Cart Paths 10,000 s.f.
Off-Site Impervious 0 s.f.
Total Impervious Area 113,230 s.f.
WATER Roadways QUALITY DRY POND #14
# Lots s.f./Lot Total
13 6,500 18, 84,500
Total Area = 22.13 ac.
Impervious Area = 2.60 ac.
Impervious Percentage = 11.7%
The storage volume for the 1" storm (Schueler Method) would be:
Rv = .05+.009 (1)
RV= 0.155
Volume = (Design Rainfall) * (RV)*(Drainage Area)
Volume = 0.28639908 ac.ft.
12,476 cf
12,476 c.f. storage required.
14,971 c.f. required including an additional 20% for sediment storage
15,157 c.f. storage provided.
=f torage Provided
Incremental Total
Elev. Area (s.f.) Volume (c.f.) Volume (c.f.) Depth (ft.)
436 1,353
3,870 3,870
438 2,517
6,656 10,526
2
440 4,139
4
4,631 15,157
441 5,123 5
Orifice required for 2-5 Day Drawdown
Drawdown cala 5.0 feet of storage so, say 2.5 feet of average head
Using a 1" orifice Q2-day= 7,114
Q = 0.04 cfs Q5-day= 17,786
So, a 1" Orifice will drawdown pond in 4.26 days
The following pages show the stormwater pond routing by the Rooney Malcom
Chainsaw method.
The Preserve at Jordan Lake - iEDDVV'Q# 14
DESIGN REQUIREMENTS:
A Pond Routing - Store 1" inch of impervious runoff.
'ost-Development 1 Runoff 10-yr
Drainage Area, (DA) = 22.13 acres
Overland Flow
Elevation of most remote point, (Hl) = 0.1 feet
Elevation of point of design, (112) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 2.0
Travel Time (Overland) = 0.0 minutes
Channel Flow
Elevation of most remote point, (Hl) = 512.0 feet
Elevation of point of design, (H2) = 433.0 feet
Length of travel, (L) = 1500.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 6.8 minutes
Pipe Flow
Elevation of most remote point, (HI) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 0.5
Travel Time (Pipe) = minutes
Time of Concentration, (Tc) _> 6.8 minutes
Intensity, (I) = 6.78 inches/hr
Area 1 (Impervious) = 2.60 acres
Area 2 (Pervious) = 19.53 acres
Cl = 0.95
C2 = 0.20
Composite Runoff Coefficient, (C) _> 0.29
Peak Release Rate, (Q10) _> 43 cfs
Post-Development Runoff
Drainage Area, (DA) = 22.13 acres
Time of Concentration, (Tc) _> 6.8 minutes
Intensity, (1) = 7.79 inches/hr
Composite Runoff Coefficient, (C) _> 0.29
Peak Release Rate, (Q25) _> 50 cfs
'o 1 Runoff 100-yr
Drainage Area, (DA) = 22.13 acres
Time of Concentration, (Tc) _>
Intensity, (I) _
Composite Runoff Coefficient, (C) _>
Peak Release Rate, (Q100) _>
6.8 minutes
9.13 inches
0.29
58 cfs
sA1311W0021crbsXW4 printed 10/91001:37 PM Page 1 of 14
ThePr eserve Jordan 11 f•
1
4
Stage
,• Func
tion
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S). (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
436 953 -
438 2,117 3,070 3,070 2.00 8.03 0.69 2.02
440 3,739 5,856 8,926 4.00 9.10 1.39 3.90
442 5,789 9,528 18,454 6.00 9.82 1.79 6.10
Check
Stage Storage
2 3,023
4 9,308
6 17,972
Regression Output:
b° 1.62 (X Variable Coefl)
K 982 (ey'°?)
Stage - Storage Equation is of the form: S = (KsxZ)
Stage - Discharge Relationship
Bottom Dry Pond Elevation 436.0 feet
Water Surface Elev. (Q10) _ 441.37 feet
Water Surface Elev. (Q25) _ 441.95 feet
Water Surface Elev. (Q100) _ 442.23 feet
i 77-1
Teimaq Spillway
Barrel
Dia. of Barrel = 30 inches
Area of Barrel, (Ab) = 4.91 sf
Pipe Length, (L) = 66.0 feet
Friction Coeff., (Kp) = 0.00786
Inv. of Barrel = 436.00 feet
Riser
Elev. of Riser Crest = 441.00 feet
Circular:
Dia. of Riser = inches
Weir Length= - feet
Area of Riser = - sq• ft.
Water Quality Orifice 1 " 0.0055
s:11311W0021eaks%Wg14 printed 10M=3:38PM
Page 2 of 14
The Pr es erve at Jordan L ake - EDD WQ# 14

Stage - S tor age Fu nction
Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (sf) (cf) (cf) (ft) In (S) In (Z) Z est
436 953 -
438 2,117 3,070 3,070 2.00 8.03 0.69 2.02
440 3,739 5,856 8,926 4.00 9.10 1.39 3.90
442 5,789 9,528 18,454 6.00 9.82 1.79 6.10
Check
Stage Storage
2 3,023
4 9,308
6 17,972
Regression Output:
lr 1.62 (X Variable Coef )
K 982 (er"mom" ")
Stage - Storage Equation is of the form: S = (Ks)(Z) b
Stage - Discharge Relationship
Bottom Dry Pond Elevation
436.0 feet
Water Surface Elev. (Q10) _ 41-11.8 feet
Water Surface Elev. (Q25) _ 441.9.3 feet
Water Surface Elev. (Q100) _ 442.22 feet
Barrel
Dia. of Barrel =
Area of Barrel, (Ab) _
Pipe Length, (L) _
Friction Coef ., (Kp) _
Inv. of Barrel =
Riser
Elev. of Riser Crest =
Circular:
Dia. of Riser =
Weir Length=
Area of Riser =
Water Quality Orifice
s113111000ZWafcs1Wg14
30 inches
4.91 sf
90.0 feet
0.00786
436.00 feet
441.00 feet
inches
- feet
- sq. ft.
2 " 0.0218
phted 10!9/001:37 PM
Page 2 of 14
The Preserve at Jordan Lake - EDD WQ# 14
Rectangular:
Length of Riser = 4 feet
Width of Riser = 4 feet
Weir Length = 16 feet
Area of Riser = 16 sq.ft.
Width of Spillway (Approx) = 10 feet
Weir Coefficient = 3.0
Crest Elevation = 442 feet
DFGVT
s.N31 I10002%caks1Wgt4 pricked 1018/001:37 PM Page 3 of 14
Preserve The 11 Q-14

Peak Inflow, (Q1a) _> 43 cfs
Time to Peak Calculation: CN= 79 P= 3.9 in S= 2.66 in.
Q*= 1.88 in. (depth of runoff)
Vol= 151,235 cf (vol. of runoff
Time to Peak, (Tp) 41.96 minutes
(SCS TR-55)
t!P- 292 t s
(min) WS)
0.00 0.000 0 0.00
0.02 0.001 1 0.06
0.05 0.006 2 0.24
0.07 0.013 3 0.54
0.10 0.022 4 0.96
0.12 0.035 5 1.50
0.14 0.050 6 2.14
0.17 0.067 7 2.90
0.19 0.087 8 3.76
0.21 0.109 9 4.72
0.24 0.134 10 5.78
0.26 0.160 11 6.92
0.29 0.189 12 8.15
0.31 0.219 13 9.45
0.33 0.250 14 10.82
0.36 0.284 15 12.25
0.38 0.318 16 13.74
0.41 0.353 17 15.26
0.43 0.389 18 16.83
0.45 0.426 19 18.42
0.48 0.463 20 20.02
0.50 0.501 21 21.64
0.52 0.538 22 23.26
0.55 0.575 23 24.86
0.57 0.612 24 26.45
0.60 0.648 25 28.01
0.62 0.684 26 29.54
0.64 0.718 27 31.02
0.67 0.751 28 32.45
0.69 0.782 29 33.82
0.71 0.813 30 35.12
0.74 0.841 31 36.34
0.76 0.867 32 37.48
0.79 0.892 33 38.53
0.81 0.914 34 39.49
0.83 0.934 35 40.35
0.86 0.951 36 41.10
0.88 0.966 37 41.74
0.91 0.978 38 42.27
0.93 0.988 39 42.69
0.95 0.995 40 42.98
0.98 0.999 41 43.16
1.00 1.000 42 43.22
1.02 0.998 43 43.15
1.05 0.994 44 42.96
1.07 0.987 45 42.66
1.10 0.977 46 42.24
s:11311100021caicMWgt4 pm?tert 1019/001:37 PM Page 4 of 14
Preserve The Jordan 11 WQ# 14
1.12 0.965 47 41.70
1.14 0.950 48 41.04
1.17 0.932 49 40.28
1.19 0.912 50 39.42
1.22 0.890 51 38.45
1.24 0.865 52 37.39
1.26 0.840 53 36.31
1.29 0.815 54 35.20
1.31 0.790 55 34.13
1.33 0.766 56 33.09
1.36 0.742 57 32.08
1.38 0.720 58 31.10
1.41 0.698 59 30.15
1.43 0.676 60 29.23
1.45 0.656 61 28.34
1.48 0.636 62 27.47
1.50 0.616 63 26.64
1.53 0.598 64 25.82
1.55 0.579 65 25.04
1.57 0.562 66 24.27
1.60 0.545 67 23.53
1.62 0.528 68 22.81
1.64 0.512 69 22.12
1.67 0.496 70 21.44
1.69 0.481 71 20.79
1.72 0.466 72 20.15
1.74 0.452 73 19.54
1.76 0.438 74 18.94
1.79 0.425 75 18.37
1.81 0.412 76 17.81
1.84 0.399 77 17.26
1.86 0.387 78 16.74
1.88 0.375 79 16.23
1.91 0.364 80 15.73
1.93 0.353 81 15.25
1.95 0.342 82 14.79
1.98 0.332 83 14.33
2.00 0.322 84 13.90
2.03 0.312 85 13.47
2.05 0.302 86 13.06
2.07 0.293 87 12.66
2.10 0.284 88 12.28
s11311100021caLs%Wgt4 printed lGfWM 1:37 PM Page 5 of 14
'The Pr eserve I Jordan I

WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (cfs) LCL M (cfs) (cfs) L2 (cfs) cfs cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.06 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.24 4 0.03 0.0 0.0 0.0 0.2 0.0 0.2
3.00 0.54 9 0.06 0.0 0.0 0.1 0.2 0.0 0.2
4.00 0.96 30 0.12 0.0 0.0 0.3 0.3 0.0 0.3
5.00 1.50 70 0.20 0.0 0.0 0.6 0.4 0.0 0.4
6.00 2.14 138 0.30 0.0 0.0 1.1 0.5 0.0 0.5
7.00 2.90 239 0.42 0.0 0.0 1.8 0.5 0.0 0.5
8.00 3.76 380 0.56 0.0 0.0 2.8 0.6 0.0 0.6
9.00 4.72 568 0.71 0.0 0.0 4.0 0.7 0.0 0.7
10.00 5.78 808 0.89 0.0 0.0 5.6 0.8 0.0 0.8
11.00 6.92 1108 1.08 0.0 0.0 7.5 0.9 0.0 0.9
12.00 8.15 1470 1.28 0.0 0.0 9.7 1.0 0.0 1.0
13.00 9.45 1902 1.50 0.0 0.0 12.3 1.0 0.0 1.0
14.00 10.82 2407 1.74 0.0 0.0 15.3 1.1 0.0 1.1
15.00 12.25 2990 1.99 0.0 0.0 18.7 1.2 0.0 1.2
16.00 13.74 3654 2.25 0.0 0.0 22.6 1.3 0.0 1.3
17.00 15.26 4402 2.52 0.0 0.0 26.7 1.3 0.0 1.3
18.00 16.83 5238 2.81 0.0 0.0 29.5 1.4 0.0 1.4
19.00 18.42 6162 3.10 0.0 0.0 32.2 1.5 0.0 1.5
20.00 20.02 7178 3.41 0.0 0.0 34.7 1.6 0.0 1.6
21.00 21.64 8286 3.72 0.0 0.0 37.2 1.6 0.0 1.6
22.00 23.26 9487 4.05 0.0 0.0 39.5 1.7 0.0 1.7
23.00 24.86 10781 4.38 0.0 0.0 41.8 1.8 0.0 1.8
24.00 26.45 12167 4.72 0.0 0.0 44.0 1.8 0.0 1.8
25.00 28.01 13644 5.06 0.8 155.1 46.2 1.9 0.0 2.7
26.00 29.54 15161 5.40 13.5 392.4 48.2 2.0 0.0 15.5
27.00 31.02 16006 5.59 23.7 473.4 49.2 2.0 0.0 25.7
28.00 32.45 16325 5.65 28.0 500.3 49.6 2.0 0.0 30.0
29.00 33.82 16473 5.69 30.0 512.2 49.8 2.0 0.0 32.0
30.00 35.12 16580 5.71 31.5 520.6 49.9 2.0 0.0 33.5
31.00 36.34 16674 5.73 32.9 527.9 50.0 2.0 0.0 34.9
32.00 37.48 16761 5.75 34.1 534.5 50.1 2.0 0.0 36.1
33.00 38.53 16841 5.76 35.3 540.5 50.2 2.0 0.0 37.3
34.00 39.49 16914 5.78 36.4 546.0 50.3 2.0 0.0 38.4
35.00 40.35 16980 5.79 37.3 550.8 50.4 2.0 0.0 39.4
36.00 41.10 17039 5.81 38.2 555.1 50.5 2.0 0.0 40.2
37.00 41.74 17090 5.82 39.0 558.8 50.5 2.0 0.0 41.0
38.00 42.27 17134 5.83 39.6 561.9 50.6 2.0 0.0 41.7
39.00 42.69 17170 5.83 40.2 564.4 50.6 2.0 0.0 42.2
40.00 42.98 17198 5.84 40.6 566.4 50.6 2.0 0.0 42.6
41.00 43.16 17219 5.84 40.9 567.9 50.7 2.0 0.0 43.0
42.00 43.22 17231 5.85 41.1 568.7 50.7 2.0 0.0 43.1
43.00 43.15 17235 5.85 41.2 569.0 50.7 2.0 0.0 43.2
44.00 42.96 17232 5.85 41.1 568.8 50.7 2.0 0.0 43.2
45.00 42.66 17220 5.84 40.9 568.0 50.7 2.0 0.0 43.0
46.00 42.24 17201 5.84 40.6 566.6 50.6 2.0 0.0 42.7
47.00 41.70 17174 5.83 40.2 564.7 50.6 2.0 0.0 42.3
48.00 41.04 17139 5.83 39.7 562.2 50.6 2.0 0.0 41.7
49.00 40.28 17097 5.82 39.1 559.2 50.5 2.0 0.0 41.1
50.00 39.42 17047 5.81 38.3 555.7 50.5 2.0 0.0 40.4
51.00 38.45 16990 5.80 37.5 551.5 50.4 2.0 0.0 39.5
52.00 37.39 16927 5.78 36.5 546.9 50.3 2.0 0.0 38.6
53.00 36.31 16856 5.77 35.5 541.6 50.2 2.0 0.0 37.5
54.00 35.20 16783 5.75 34.4 536.2 50.2 2.0 0.0 36.5
55.00 34.13 16707 5.74 33.3 530.4 50.1 2.0 0.0 35.4
56.00 33.09 16633 5.72 32.3 524.7 50.0 2.0 0.0 34.3
57.00 32.08 16560 5.70 31.3 519.1 49.9 2.0 0.0 33.3
58.00 31.10 16489 5.69 30.2 513.5 49.8 2.0 0.0 32.3
59.00 30.15 16419 5.67 29.3 507.9 49.7 2.0 0.0 31.3
60.00 29.23 16351 5.66 28.3 502.4 49.6 2.0 0.0 30.3
s:A,61,ikQz=lcs%wa,,28.34 16284 5.65 24Aed ,omm 419-AO 49.6 2.0 0.0 29je 6 of 14
62.00 27.47 16219 5.63 26.5 491.6 49.5 2.0 0.0 28.5
63.00 26.64 16155 5.62 25.7 486.2 49.4 2.0 0.0 27.7
64.00 25.82 16092 5.61 24.8 480.9 493 2.0 0.0 26.8
65.00 25.04 16031 5.59 24.0 475.6 49.2 2.0 0.0 26.0
66.00 24.27 15971 5.58 23.3 470.4 49.2 2.0 0.0 25.3
67.00 23.53 15912 5.57 22.5 465.2 49.1 2.0 0.0 24.5
68.00 22.81 15855 5.55 21.8 460.1 49.0 2.0 0.0 23.8
69.00 22.12 15798 5.54 21.1 455.0 49.0 2.0 0.0 23.0
70.00 21.44 15743 5.53 20.4 450.0 489 2.0 0.0 22.3
sA1311%00021caics%Wgl4 pinteS 10/9=1:37 PM Page 7 of 14
The Pre serve at Jo rdan La ke - EDD •
71.00 20.79 15689 5.52 19.7 445.0 48.8 2.0 0.0 21.7
72.00 20.15 15636 5.51 19.0 440.0 48.8 2.0 0.0 21.0
73.00 19.54 15584 5.50 18.4 435.1 48.7 2.0 0.0 20.4
74.00 18.94 15534 5.48 17.8 430.3 48.6 2.0 0.0 19.8
75.00 18.37 15484 5.47 17.2 425.4 48.6 2.0 0.0 19.2
76.00 17.81 15435 5.46 16.6 420.6 48.5 2.0 0.0 18.6
77.00 17.26 15388 5.45 16.1 415.9 48.5 2.0 0.0 18.0
78.00 16.74 15341 5.44 15.5 411.2 48.4 2.0 0.0 17.5
79.00 16.23 15295 5.43 15.0 406.5 48.3 2.0 0.0 17.0
80.00 15.73 15250 5.42 14.5 401.8 48.3 2.0 0.0 16.5
81.00 15.25 15206 5.41 14.0 397.2 48.2 2.0 0.0 16.0
82.00 14.79 15163 5.40 13.5 392.7 48.2 2.0 0.0 15.5
83.00 14.33 15121 5.39 13.1 388.1 48.1 2.0 0.0 15.0
84.00 13.90 15080 5.39 12.6 383.6 48.1 2.0 0.0 14.6
85.00 13.47 15039 5.38 12.2 379.2 48.0 2.0 0.0 14.1
86.00 13.06 15000 5.37 11.8 374.7 48.0 2.0 0.0 13.7
87.00 12.66 14961 5.36 11.3 370.3 47.9 2.0 0.0 13.3
88.00 12.28 14923 5.35 11.0 365.9 47.9 1.9 0.0 12.9

Inflow-Hy drograph
Peak Inflow, (Q50) = 50 cfs
Time to Peak Calculation: CN= 79 P= 4.62 in S= 2.66 in.
Q*= 2.48 in. (depth of runoff
Vol= 199,022 cf (vol. of runoff
Time to Peak, (Tp) 48.03 minutes
(SCS TR-55)
vtp 24E t Q
(min) (Cfs)
0.00 0.000 0.00 0.00
0.02 0.001 1.00 0.05
0.04 0.004 2.00 0.21
0.06 0.010 3.00 0.48
0.08 0.017 4.00 0.85
0.10 0.027 5.00 1.32
0.12 0.038 6.00 1.89
0.15 0.052 7.00 2.56
0.17 0.067 8.00 3.32
0.19 0.084 9.00 4.18
0.21 0.103 10.00 5.13
0.23 0.124 11.00 6.16
0.25 0.146 12.00 7.27
0.27 0.170 13.00 8.45
0.29 0.195 14.00 9.71
0.31 0.222 15.00 11.03
0.33 0.250 16.00 12.41
0.35 0.279 17.00 13.84
0.37 0.308 18.00 15.32
0.40 0.339 19.00 16.84
0.42 0.370 20.00 18.40
0.44 0.402 21.00 19.98
0.46 0.434 22.00 21.58
0.48 0.467 23.00 23.20
0.50 0.500 24.00 24.82
0.52 0.532 25.00 26.45
0.54 0.565 26.00 28.06
0.56 0.597 27.00 29.67
0.58 0.629 28.00 31.25
0.60 0.660 29.00 32.81
0.62 0.691 30.00 34.33
0.65 0.721 31.00 35.81
0.67 0.750 32.00 37.24
01311\OW2kaks\Wg14 prirded 10111:37 PM
Page 8 of 14
The Pre serve at Jordan
0.69 0.777 33.00 38.62
0.71 0.804 34.00 39.94
0.73 0.829 35.00 41.20
0.75 0.853 36.00 42.39
0.77 0.875 37.00 43.50
0.79 0.896 38.00 44.53
0.81 0.915 39.00 45.48
0.83 0.933 40.00 46.34
0.85 0.948 41.00 47.11
0.87 0.962 42.00 47.78
0.90 0.973 43.00 48.36
0.92 0.983 44.00 48.83
0.94 0.990 45.00 49.20
0.96 0.996 46.00 49.47
0.98 0.999 47.00 49.63
1.00 1.000 48.00 49.69
1.02 0.999 49.00 49.64
1.04 0.996 50.00 49.48
1.06 0.991 51.00 49.22
1.08 0.983 52.00 48.85
1.10 0.974 53.00 48.39
1.12 0.962 54.00 47.82
1.15 0.949 55.00 47.15
1.17 0.934 56.00 46.38
1.19 0.916 57.00 45.53
1.21 0.897 58.00 44.59
1.23 0.877 59.00 43.56
1.25 0.854 60.00 42.45
1.27 0.833 61.00 41.37
1.29 0.810 62.00 40.26
1.31 0.789 63.00 39.19
1.33 0.768 64.00 38.14
1.35 0.747 65.00 37.12
1.37 0.727 66.00 36.13
1.40 0.708 67.00 35.17
1.42 0.689 68.00 34.23
1.44 0.670 69.00 33.31
1.46 0.653 70.00 32.42
1.48 0.635 71.00 31.56
1.50 0.618 72.00 30.71
1.52 0.602 73.00 29.89
1.54 0.586 74.00 29.10
1.56 0.570 75.00 28.32
1.58 0.555 76.00 27.56
1.60 0.540 77.00 26.83
1.62 0.525 78.00 26.11
1.64 0.511 79.00 25.41
1.67 0.498 80.00 24.73

Stonn Ro uting Table -25-yr
- WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
(min) (Cfs) (cf) Sm efs (cfs) (Cfs) (Cfs) (Cfs)
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.05 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.21 3 0.03 0.0 0.0 0.0 0.1 0.0 0.1
3.00 0.48 7 0.05 0.0 0.0 0.1 0.2 0.0 0.2
4.00 0.85 25 0.10 0.0 0.0 0.2 0.3 0.0 0.3
5.00 1.32 59 0.18 0.0 0.0 0.5 0.4 0.0 0.4
6.00 1.89 117 0.27 0.0 0.0 0.9 0.4 0.0 0.4
7.00 2.56 204 0.38 0.0 0.0 1.6 0.5 0.0 0.5
8.00 3.32 326 0.51 0.0 0.0 2.4 0.6 0.0 0.6
9.00 4.18 490 0.65 0.0 0.0 3.5 0.7 0.0 0.7
10.00 5.13 700 0.81 0.0 0.0 4.9 0.8 0.0 0.8
s:tihdtGA2Walcs%Wc046.16 962 0.99 o A e& loww i:D.A 6.6 0.8 0.0 01$ge 9 of 14
The -Pr eserve at Jordan DD WQ# 14
12.00 7.27 1281 1.18 0.0 0.0 8.6 0.9 0.0 0.9
13.00 8.45 1663 1.38 0.0 0.0 10.9 1.0 0.0 1.0
14.00 9.71 2110 1.60 0.0 0.0 13.6 1.1 0.0 1.1
15.00 11.03 2629 1.84 0.0 0.0 16.6 1.1 0.0 1.1
16.00 12.41 3222 2.08 0.0 0.0 20.1 1.2 0.0 1.2
17.00 13.84 3894 2.34 0.0 0.0 23.9 1.3 0.0 1.3
18.00 15.32 4647 2.61 0.0 0.0 27.5 1.4 0.0 1.4
19.00 16.84 5485 2.89 0.0 0.0 30.2 1.4 0.0 1.4
20.00 18.40 6409 3.18 0.0 0.0 32.8 1.5 0.0 1.5
21.00 19.98 7423 3.48 0.0 0.0 35.3 1.6 0.0 1.6
22.00 21.58 8528 3.79 0.0 0.0 37.7 1.6 0.0 1.6
23.00 23.20 9724 4.11 0.0 0.0 40.0 1.7 0.0 1.7
24.00 24.82 11013 4.44 0.0 0.0 42.2 1.8 0.0 1.8
25.00 26.45 12396 4.77 0.0 0.0 44.4 1.8 0.0 1.8
26.00 28.06 13873 5.12 2.1 209.8 46.5 1.9 0.0 4.0
27.00 29.67 15318 5.44 15.3 408.9 48.4 2.0 0.0 17.2
28.00 31.25 16064 5.60 24.5 478.5 49.3 2.0 0.0 26.5
29.00 32.81 16351 5.66 28.3 502.4 49.6 2.0 0.0 30.3
30.00 34.33 16499 5.69 30.4 514.2 49.8 2.0 0.0 32.4
31.00 35.81 16614 5.72 32.0 523.3 50.0 2.0 0.0 34.0
32.00 37.24 16721 5.74 33.5 531.5 50.1 2.0 0.0 35.6
33.00 38.62 16822 5.76 35.0 539.1 50.2 2.0 0.0 37.0
34.00 39.94 16917 5.78 36.4 546.2 50.3 2.0 0.0 38.4
35.00 41.20 17008 5.80 37.7 552.8 50.4 2.0 0.0 39.8
36.00 42.39 17093 5.82 39.0 559.0 50.5 2.0 0.0 41.1
37.00 43.50 17173 5.83 40.2 564.7 50.6 2.0 0.0 42.3
38.00 44.53 17247 5.85 41.4 569.9 50.7 2.0 0.0 43.4
39.00 45.48 17316 5.86 42.4 574.7 50.8 2.0 0.0 44.4
40.00 46.34 17378 5.88 43.4 579.0 50.8 2.0 0.0 45.4
41.00 47.11 17434 5.89 44.2 582.8 50.9 2.0 0.0 46.3
42.00 47.78 17484 5.90 45.0 586.2 51.0 2.0 0.0 47.1
43.00 48.36 17528 5.91 45.7 589.1 51.0 2.0 0.0 47.7
44.00 48.83 17565 5.92 46.3 591.6 51.1 2.1 0.0 48.3
45.00 49.20 17595 5.92 46.8 593.7 51.1 2.1 0.0 48.8
46.00 49.47 17619 5.93 47.1 595.3 51.1 2.1 0.0 49.2
47.00 49.63 17636 5.93 47.4 596.4 51.1 2.1 0.0 49.5
48.00 49.69 17647 5.93 47.6 597.1 51.1 2.1 0.0 49.6
49.00 49.64 17651 5.93 47.6 597.4 51.2 2.1 0.0 49.7
50.00 49.48 17648 5.93 47.6 597.2 51.1 2.1 0.0 49.6
51.00 49.22 17638 5.93 47.4 596.6 51.1 2.1 0.0 49.5
52.00 48.85 17622 5.93 47.2 595.5 51.1 2.1 0.0 49.2
53.00 48.39 17599 5.92 46.8 594.0 51.1 2.1 0.0 48.9
54.00 47.82 17570 5.92 46.4 592.0 51.1 2.1 0.0 48.4
55.00 47.15 17534 5.91 45.8 589.6 51.0 2.0 0.0 47.8
56.00 46.38 17492 5.90 45.1 586.8 51.0 2.0 0.0 471
57.Qd 45.53 17444 5.89 44.4 583.5 50.9 2.0 0.0 46.4
58.00 44.59 17390 5.88 43.5 579.8 50.9 2.0 0.0 45.6
59.00 43.56 17330 5.87 42.6 575.6 50.8 2.0 0.0 44.7
60.00 42.45 17264 5.85 41.6 571.0 50.7 2.0 0.0 43.6
61.00 41.37 17192 5.84 40.5 566.0 50.6 2.0 0.0 42.5
62.00 40.26 17121 5.82 39.4 560.9 50.5 2.0 0.0 41.5
63.00 39.19 17048 5.81 38.3 555.7 50.5 2.0 0.0 40.4
64.00 38.14 16977 5.79 37.3 550.5 50.4 2.0 0.0 39.3
65.00 37.12 16906 5.78 36.2 545.4 50.3 2.0 0.0 38.3
66.00 36.13 16837 5.76 35.2 540.3 50.2 2.0 0.0 37.3
67.00 35.17 16770 5.75 34.2 535.2 50.1 2.0 0.0 36.3
68.00 34.23 16703 5.74 33.3 530.1 50.1 2.0 0.0 35.3
69.00 33.31 16638 5.72 32.4 525.2 50.0 2.0 0.0 34.4
70.00 32.42 16574 5.71 31.5 520.2 49.9 2.0 0.0 33.5
71.00 31.56 16512 5.69 30.6 515.3 49.8 2.0 0.0 32.6
72.00 30.71 16450 5.68 29.7 510.4 49.8 2.0 0.0 31.7
73.00 29.89 16390 5.67 28.9 505.6 49.7 2.0 0.0 30.9
74.00 29.10 16331 5.66 28.1 500.8 49.6 2.0 0.0 30.1
75.00 28.32 16272 5.64 27.3 496.0 49.5 2.0 0.0 29.3
76.00 27.56 16215 5.63 26.5 491.3 49.5 2.0 0.0 28.5
77.00 26.83 16159 5.62 25.7 486.6 49.4 2.0 0.0 27.7
5Ai i zoo 1wy1 .11 16104 5.61 2 ,4 49.3 2.0 0.0 KA 10 of 14
The Preserve at Jordan Lake - I1 WQ# 14
79.00 25.41 16051 5.60 24.3 477.3 49.3 2.0 0.0 26.3
80.00 24.73 15998 5.58 23.6 472.7 49.2 2.0 0.0 25.6
Hydrograph 100-yr
Peak Inflow, (Q100) = 58 cfs
Time to Peak Calculation: CN= 79 P= 5.75 in S= 2.66 in.
Q*= 3.46 in. (depth of runoff
Vol= 277,727 of (vol. of runoff
Time to Peak, (Tp) 57.22 minutes
(SCS TR-55)
Y-tR Q/OP t Q
(mm) efs
0.00 0.000 0.00 0.00
0.02 0.001 1.00 0.04
0.04 0.003 2.00 0.18
0.06 0.007 3.00 0.39
0.08 0.012 4.00 0.70
0.10 0.019 5.00 1.09
0.12 0.027 6.00 1.56
0.15 0.036 7.00 2.12
0.17 0.047 8.00 2.76
0.19 0.060 9.00 148
0.21 0.073 10.00 4.28
0.23 0.088 11.00 5.15
0.25 0.105 12.00 6.09
0.27 0.122 13.00 7.10
0.29 0.141 14.00 8.18
0.31 0.160 15.00 9.32
0.33 0.181 16.00 10.53
0.35 0.202 17.00 11.78
0.37 0.225 18.00 13.09
0.40 0.248 19.00 14.45
0.42 0.272 20.00 15.85
0.44 0.297 21.00 17.29
0.46 0.323 22.00 18.77
0.48 0.348 23.00 20.28
0.50 0.375 24.00 21.82
0.52 0.402 25.00 23.37
y 0.54 0.429 26.00 24.95
0.56 0.456 27.00 26.53
0.58 0.483 28.00 28.13
0.60 0.511 29.00 29.73
0.62 0.538 30.00 31.32
0.65 0.565 31.00 32.91
0.67 0.593 32.00 34.49
0.69 0.619 33.00 36.05
0.71 0.646 34.00 37.59
0.73 0.672 35.00 39.10
0.75 0.697 36.00 40.59
0.77 0.722 37.00 42.04
0.79 0.747 38.00 43.45
0.81 0.770 39.00 44.82
0.83 0.793 40.00 46.14
0.85 0.815 41.00 47.41
0.87 0.835 42.00 48.62
0.90 0.855 43.00 49.78
0.92 0.874 44.00 50.87
0.94 0.892 45.00 51.90
0.96 0.908 46.00 52.85
0.98 0.923 47.00 53.74
s:N311V00021dcs1Wg14 printed MOM 1:37 PM
Page 11 of 14
1.00 0.937 48.00 54.55
1.02 0.950 49.00 55.29
1.04 0.961 50.00 55.95
1.06 0.971 51.00 56.52
1.08 0.980 52.00 57.02
1.10 0.987 53.00 57.42
1.12 0.992 54.00 57.75
1.15 0.996 55.00 57.99
1.17 0.999 56.00 58.14
1.19 1.000 57.00 58.20
1.21 1.000 58.00 58.17
1.23 0.998 59.00 58.06
1.25 0.994 60.00 57.86
1.27 0.989 61.00 57.58
1.29 0.983 62.00 57.20
1.31 0.975 63.00 56.75
1.33 0.966 64.00 56.21
1.35 0.955 65.00 55.58
1.37 0.943 66.00 54.88
1.40 0.930 67.00 54.10
1.42 0.915 68.00 53.25
1.44 0.899 69.00 52.32
1.46 0.882 70.00 51.32
1.48 0.864 71.00 50.26
1.50 0.845 72.00 49.20
1.52 0.826 73.00 48.09
1.54 0.808 74.00 47.01
1.56 0.790 75.00 45.96
1.58 0.772 76.00 44.93
1.60 0.755 77.00 43.92
1.62 0.738 78.00 42.93
1.64 0.721 79.00 41.97
1.67 0.705 80.00 41.02
1.69 0.689 81.00 40.10
1.71 0.674 82.00 39.20
1.73 0.658 83.00 38.32
1.75 0.644 84.00 37.46
s:1131 IXOOOZcaioa\wcrt4 pp6ReQ 1019=1:37 PM Page 12 of 14
',-The Pre serve at Jordan 1

.Storm
Rou ting
WEIR ORIFICE W.Q. EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL ORIFICE SPILLWAY OUTFLOW
fn u (cfs) t. U (Cfs) (cfs) (SM (?? (cfs) cfs
0.00 0.00 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
1.00 0.04 0 0.00 0.0 0.0 0.0 0.0 0.0 0.0
2.00 0.18 3 0.03 0.0 0.0 0.0 0.1 0.0 0.1
3.00 0.39 5 0.04 0.0 0.0 0.1 0.2 0.0 0.2
4.00 0.70 19 0.09 0.0 0.0 0.2 0.2 0.0 0.2
5.00 1.09 46 0.15 0.0 0.0 0.4 0.3 0.0 0.3
6.00 1.56 91 0.23 0.0 0.0 0.7 0.4 0.0 0.4
7.00 2.12 161 0.33 0.0 0.0 1.3 0.5 0.0 0.5
8.00 2.76 259 0.44 0.0 0.0 2.0 0.6 0.0 0.6
9.00 3.48 392 0.57 0.0 0.0 2.9 0.6 0.0 0.6
10.00 4.28 562 0.71 0.0 0.0 4.0 0.7 0.0 0.7
11.00 5.15 776 0.87 0.0 0.0 5.4 0.8 0.0 0.8
12.00 6.09 1038 1.04 0.0 0.0 7.1 0.9 0.0 0.9
13.00 7.10 1352 1.22 0.0 0.0 9.0 0.9 0.0 0.9
14.00 8.18 1723 1.41 0.0 0.0 11.3 1.0 0.0 1.0
15.00 9.32 2154 1.62 0.0 0.0 13.8 1.1 0.0 1.1
16.00 10.53 2649 1.84 0.0 0.0 16.8 1.1 0.0 1.1
17.00 11.78 3211 2.08 0.0 0.0 20.0 1.2 0.0 1.2
18.00 13.09 3846 2.32 0.0 0.0 23.7 1.3 0.0 1.3
19.00 14.45 4554 2.57 0.0 0.0 27.2 1.4 0.0 1.4
20.00 15.85 5340 2.84 0.0 0.0 29.8 1.4 0.0 1.4
21.00 17.29 6206 3.12 0.0 0.0 32.3 1.5 0.0 1.5
22.00 18.77 7154 3.40 0.0 0.0 34.7 1.6 0.0 1.6
23.00 20.28 8187 3.70 0.0 0.0 37.0 1.6 0.0 1.6
24.00 21.82 9307 4.00 0.0 0.0 39.2 1.7 0.0 1.7
25.00 23.37 10515 4.31 0.0 0.0 41.4 1.8 0.0 1.8
26.00 24.95 11812 4.63 0.0 0.0 43.5 1.8 0.0 1.8
27.00 26.53 13200 4.96 0.0 0.0 45.5 1.9 0.0 1.9
28.00 28.13 14679 5.30 8.5 336.6 47.5 1.9 0.0 10.5
29.00 29.73 15739 5.53 20.3 449.7 48.9 2.0 0.0 22.3
30.00 31.32 16185 5.62 26.1 488.8 49.4 2.0 0.0 28.1
31.00 32.91 16379 5.67 28.7 504.7 493 2.0 0.0 30.7
32.00 34.49 16510 5.69 30.5 515.1 49.8 2.0 0.0 32.6
33.00 36.05 16626 5.72 32.2 524.2 50.0 2.0 0.0 34.2
34.00 37.59 16737 5.74 33.8 532.7 50.1 2.0 0.0 35.8
35.00 39.10 16845 5.77 35.3 540.8 50.2 2.0 0.0 37.4
36.00 40.59 16949 5.79 36.9 548.5 50.3 2.0 0.0 38.9
37.00 42.04 17050 5.81 38.4 555.9 50.5 2.0 0.0 40.4
38.00 43.45 17148 5.83 39.8 562.9 50.6 2.0 0.0 41.9
39.09 44.82 17242 5.85 41.3 569.5 50.7 2.0 0.0 43.3
40.00 46.14 17332 5.87 42.7 575.8 50.8 2.0 0.0 44.7
41.00 47.41 17419 5.89 44.0 581.8 50.9 2.0 0.0 46.0
42.00 48.62 17501 5.90 45.3 587.3 51.0 2.0 0.0 47.3
43.00 49.78 17579 5.92 46.5 592.6 51.1 2.1 0.0 48.5
44.00 50.87 17653 5.93 47.7 597.5 51.2 2.1 0.0 49.7
45.00 51.90 17722 5.95 48.8 602.1 51.2 2.1 0.0 50.8
46.00 52.85 17786 5.96 49.8 606.3 51.3 2.1 0.0 51.9
47.00 53.74 17846 5.97 50.8 610.2 51.4 2.1 0.0 52.8
48.00 54.55 17901 5.99 51.7 613.7 51.4 2.1 0.0 53.5
49.00 55.29 17965 6.00 52.7 617.8 51.5 2.1 0.0 53.6
50.00 55.95 18068 6.02 54.4 624.3 51.6 2.1 0.1 53.8
51.00 56.52 18199 6.05 56.5 632.5 51.8 2.1 0.3 54.1
52.00 57.02 18342 6.08 58.9 641.2 51.9 2.1 0.6 54.6
53.00 57.42 18485 6.10 61.3 649.9 52.1 2.1 1.0 55.2
54.00 57.75 18620 6.13 63.6 657.9 52.2 2.1 1.4 55.8
55.00 57.99 18739 6.16 65.7 664.9 52.4 2.1 1.9 56.3
56.00 58.14 18840 6.18 67.4 670.7 52.5 2.1 2.2 56.8
57.00 58.20 18921 6.19 68.8 675.3 52.5 2.1 2.5 57.2
58.00 58.17 18981 6.21 69.9 678.8 52.6 2.1 2.8 57.5
59.00 58.06 19021 6.21 70.6 681.0 52.7 2.1 3.0 57.7
60.00 57.86 19042 6.22 70.9 682.2 52.7 2.1 3.0 57.8
.:%i6ltdQ2+..t.mw/oZ7.58 19044 6.22 7$Aea imm fiS24 52.7 2.1 3.1 991# 13 of 14
The Pr eserve at Jordan /
62.00 57.20 19028 6.21 70.7 681.4 52.7 2.1 3.0 57.8
63.00 56.75 18995 6.21 70.1 679.6 52.6 2.1 2.9 57.6
64.00 56.21 18945 6.20 69.2 676.7 52.6 2.1 2.6 57.3
65.00 55.58 18878 6.18 68.1 672.9 52.5 2.1 2.4 57.0
66.00 54.88 18794 6.17 66.6 668.1 52.4 2.1 2.1 56.6
67.00 54.10 18693 6.15 64.9 662.2 52.3 2.1 1.7 56.1
68.00 53.25 18574 6.12 62.8 655.2 52.2 2.1 1.3 55.6
69.00 52.32 18435 6.09 60.5 646.9 52.0 2.1 0.9 55.0
70.00 51.32 18276 6.06 57.8 637.2 51.8 2.1 0.5 54.4
71.00 50.26 18091 6.02 54.8 625.8 51.6 2.1 0.1 53.8
72.00 49.20 17877 5.98 51.3 612.2 51.4 2.1 0.0 53.3
73.00 48.09 17630 5.93 47.3 596.0 51.1 2.1 0.0 49.4
74.00 47.01 17554 5.91 46.1 590.9 51.0 2.0 0.0 48.2
75.00 45.96 17485 5.90 45.0 586.3 51.0 2.0 0.0 47.1
76.00 44.93 17418 5.89 44.0 581.7 50.9 2.0 0.0 46.0
77.00 43.92 17352 5.87 43.0 577.2 50.8 2.0 0.0 45.0
78.00 42.93 17287 5.86 42.0 572.6 50.7 2.0 0.0 44.0
79.00 41.97 17223 5.84 41.0 568.2 50.7 2.0 0.0 43.0
80.00 41.02 17160 5.83 40.0 563.7 50.6 2.0 0.0 42.1
81.00 40.10 17097 5.82 39.1 559.3 50.5 0.0 39.1
82.00 39.20 17158 5.83 40.0 563.6 50.6 0.0 40.0
83.00 38.32 17110 5.82 39.3 560.2 50.5 0.0 39.3
84.00 37.46 17053 5.81 38.4 556.0 50.5 0.0 38.4
s:%1311w002%caks%Wgt4 Printed 1OMM 1:57 PM Page 14 of 14
ANTI FLOTATION DESIGN FOR PER MANENT WATER QUALI TY POND #14

FLOTATION OF RISER

RISER DIMENSIONS
0 feet
4
Inside Dimensions Width = .
0 feet
4
Length = .

00
441
ELEV. TOP OF RISER = .
00
436
ELEV. BOT. OF RISER = .
00 ft
5
H = .
0 SF
16
AREA OF RISER = .
bic Feet
0 C
80
VOLUME OF RISER = u
.

24 I
ch
DIAMETER OF BARREL = n
AREA OF BARREL = 3.1 SF
00 ft
6
EXPOSED LENGTH = .
8 Cubic Feet
18
VOLUME OF BARREL = .

WEIGHT OF WATER DISPLACED = 6168.21 lb
03 lb
6785
FACTOR OF SAFETY (10%) .

VOLUME OF CONCRETE ANCHOR = 77.5 Cubic Feet

WEIGHT OF OUTLET STRUCTURE
4'x4'
Inside Dimension 62351b
Weight of Concrete

ANIT-FLOTATION WEIGHT REQUIRED = 550 lb
t
F
ANIT-FLOTATION VOLUME REQUIRED = ee
6.3 Cubic

ANTI-FLOTATION PAD REQUIRED
DEPTH = 1.00 ft
00 ft
6
WIDTH = .
LENGTH= 6.00 ft

VOLUME PROVIDED = 36.0 Cubic Feet

SO, USE CONCRETE PAD 1'x6'x6'

FES AT PERMANENT WATER QUALITY POND 914
flow Q in cfs : 51.2
slope S in ft/ft :.044
pipe diameter D in ft : 2
Manning number n :.012
Flow depth (ft) = 2.00
Outlet velocity (fps) = 16.30
ZONE 3
For a pipe diameter of 2.00 feet and
an outlet velocity of 16.30 feet per second:
The recommended apron length is 16.0 feet.
The maximum stone diameter is 36.1 inches.
AVG DIAM STONE THICKNESS
(inches) CLASS (inches)
-------- ----- ---------
» 23 1 30