SW6240606_Design Calculations_20240830

4D Site Solutions, Inc.
PIPE CALCULATIONS
NOTE:sheet only set up to handle Tc from 5 min to 30 min
A. Cross-pipes to use 25-yr storm inensity
2050-Village at Rockfish Phase V
Rainfall Intensity
Storm Event 5 in 15-min
10-yr 7.91 6.33 5.34 3.87
25-yr 8.94 7.12 6.01 4.46
50-yr 9.65 7.68 6.49 4.89
100-yr 10.40 8.23 6.94 5.31
Tc
Drainage Storm Rainfall
Pipe No. C Kerby Kirpich Intensity Q(cfs)
Area(ac) Event(yr)
Total Tc Tc Used (in/hr)
L(ft) n s Toy L(ft) S Tch
1 10.57 0.30 n/a 1050.0 0.007 11.03 11.03 10 25-yr 7.12 22.58
printed: 6/13/2024 1:45 PM Page 1 of 1

STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE
ANALYSIS(1 4-10-24 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
Village at Rockfish Phase V 2050 REVISION / /
LOCATION BY RECORD / /
Cumberland County,North Carolina CEK OTHER / /
CHECKED BY (SPECIFY)
CSB
n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED ►
g= 226
h= 26
INLET Q(+) Q(-) CAPTURED Tc I Cc
INLET Cc INLET PSTREA INLET INLET TOTAL INLET PIPE TIME RUNOFF
FROM TO AREAS AREA RUNOFF )ISCHARG BYPASS BYPASS )ISCHARG AREAS TIME TIME OF CONC.INTENSITY COEFF.
(INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR)
CI-1 CI-2 CI-1 0.42 0.65 1.15 0.06 00 1.15 0.42 5.00 0.00 5.00 7.29 0.65
CI-2 CI-Y CI-2 0.00 0.99 0.00 0.00 0.00 0.00 0.42 5.00 0.32 5.32 7.22 0.65
CI-Y CI-YY CI-Y 0.00 0.99 0.00 0.00 0.00 0.00 0.42 5.00 0.63 5.63 7.14 0.65
CI-YY CI-Z CI-YY 0.00 0.99 0.00 0.00 0.00 0.00 0.42 5.00 0.95 5.95 7.07 0.65
CI-Z CI-ZZ CI-Z 0.00 0.99 0.00 0.00 0.00 0.00 0.42 5.00 1.27 6.27 7.00 0.65
CI-ZZ CI-8 CI-ZZ 0.00 0.99 0.00 0.00 0.00 0.00 0.42 5.00 1.59 6.59 6.94 0.65
■
CI#10020 CI#10054 CI#10020 0.14 0.65 I 0.00 0.31 0.14 5.00 0.00 5.00 7.29 0.65
CI#10054 UNK FES CI#100540.29 0.65 0.00 0.56 0.43 5.00 0.32 5.32 7.22 0.65
CI-1 P0-2 0.26 0.80 0.20 0.73 0.26 5.00 0.00 5.00 7.29 0.80
CI-3 POD 0.60 ii 0.32 •.••
1.27 0.40 5.00 0.00 5.00 7.29 0.60
CI-5 P0-6 CI-5 0.40 0.60 0.00 0.00 0.96 0.40 5.00 0.00 5.00 7.29 0.60
CI-7 CI-8 CI-7 0.42 0.65 0.06 1.03 0.42 5.00 0.00 5.00 7.29 0.65
CI-8 P0-9 CI-8 0.16 0.55 0.00 0.29 0.58 5.00 0.11 5.11 7.27 0.62
CI-10 CI-11 CI-10 0.40 0.60 0.12 0.77 0.40 5.00 0.00 5.00 7.29 0.60
CI-11 P0-12 CI-11 0.45 0.60 0.05 0.81 0.85 5.00 0.11 5.11 7.27 0.60
CI-13 CI-14 CI-13 0.32 0.60 0.31 +. 0.75 0.32 5.00 0.00 5.00 7.29 0.60
CI-14 P0-15 CI-14 0.27 MIEM 0.33 0.28 0.74 0.59 5.00 0.11 5.11 7.27 0.62
CI-16 CI-17 CI-16 0.48 0.60 0.34 0.00 1.49 0.48 5.00 0.00 5.00 7.29 0.60
CI-17 P0-18 CI-17 0.52 MIEM 0.33 0.00 1.68 1.00 5.00 0.32 5.32 7.21 0.63
PIPE 1 IN PIPE 1 OUT PIPE 1 IN
2050-Storm drainage.xlsx 10-YEAR Date:6/13/2024 Time:12.58 PM Page 1 of 4

STORM DRAINAGE/HYDRAULIC GRADE LII DATE DESIGN PHASE
ANALYSIS(10 YEAR) 4-10-24 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
Village at Rockfish Phase V 2050 REVISION / /
LOCATION BY RECORD / /
Cumberland County,North Carolina CEK OTHER / /
CHECKED BY (SPECIFY)
CSB
n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED
9= 226 9
h= 26
Q Q UPSTREAM
SIDE- CAPACITY SEGMENT UPPER LOWER TOP
FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV.
(CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT)
CI-1 CI-2 1.99 0.00 0.0100 15 6.5 5.3 100 0.32 106.00 105.00 100.00
CI-2 CI-Y 1.97 0.00 0.0100 15 6.5 5.3 100 0.32 100.00 99.00 100.00
CI-Y CI-YY 1.95 0.00 0.0100 15 6.5 5.3 100 0.32 98.00 97.00 100.00
CI-YY CI-Z 1.93 0.00 0.0100 15 6.5 5.3 100 0.32 97.00 96.00 100.00
CI-Z CI-ZZ 1.91 0.00 0.0100 15 6.5 5.3 100 0.32 96.00 95.00 100.00
CI-ZZ CI-8 1.89 0.00 0.0100 15 6.5 5.3 100 0.32 95.00 94.00 100.00
CI#10020 CI#10054 0.67 0.00 0.0100 15 6.5 5.3 0.32 106.00 105.00 100.00
CI#10054 UNK FES 2.04 0.00 0.0100 15 6.5 5.3 0.32 100.00 99.00 00.00
CI-1 P0-2 1.54 0.00 0.0051 15 4.6 3.7 0.66 80.85 80.10 I.83.36
CI-3 P0-4 1.73 0.00 0.0050 15 4.6 3.7 ME= 0.54 79.80 79.20 I182.30
CI-5 P0-6 1.75 0.00 0.0050 15 4.6 3.7 0.53 79.80 79.21 I182.30
CI-7 CI-8 1.99 0.00 0.0053 15 4.7 3.8 25 0.11 80.00 79.87 82.72
CI-8 P0-9 2.61 0.00 0.0066 15 5.2 4.3 102 0.40 79.87 79.20 82.72
CI-10 CI-11 1.75 0.00 0.0053 15 4.7 3.8 25 0.11 76.85 76.72 81.60
CI-11 P0-12 3.72 0.00 0.0227 15 9.7 7.9 120 0.25 76.72 74.00 81.60
CI-13 CI-14 1.42 0.00 0.0053 15 4.7 3.8 25 0.11 76.60 76.47 80.85
CI-14 P0-15 2.67 0.00 0.0070 15 5.4 4.4 110 0.42 76.47 75.70 80.85
CI-16 CI-17 2.10 0.00 0.0050 15 4.6 3.7 72 0.32 75.05 74.69 179.78
CI-17 P0-18 4.52 0.00 0.0376 15 12.5 10.2 162 0.26 74.69 68.60 79.78
PIPE 1 IN PIPE 1 OUT 20.07 0.00 0.0056 30 30.6 6.2 0.14 82.20 81.90 I185.28
2050-Storm drainage.xlsx 10-YEAR Date:6/13/2024 Time:12.58 PM Page 2 of 4

i
BEND LOS; KS
n= 0.013 90 DEG=0.7 30 DEG=0.28
g= 226'0 DEG=0.55 15 DEG=0.10
h= 26
CI COVER
BOX COVER BELOW IDESTREA BEND
FROM TO DEPTH SUBGRADBUMMATIOI LOSS
I (8") (CFS) K
CI-1 CI-2 -6.00 (7.25) (8.38) 0.00 0.90
CI-2 CI-Y 0.00 (1.25) (2.38) 0.00 0.90
CI-Y CI-YY 2.00 0.75 (0.38) 0.00 0.90
CI-YY CI-Z 3.00 1.75 0.63 0.00 0.90
CI-Z CI-ZZ 4.00 2.75 1.63 0.00 0.90
CI-ZZ CI-8 5.00 3.75 2.63 0.00 0.90
CI#10020 CI#10054 -6.00 (7.25) (8.38) 0.00 0.90
CI#10054 UNK FES 0.00 (1.25) (2.38) 0.00 0.90
CI-1 P0-2 2.51 1.26 0.13 0.00 0.00
CI-3 P0-4 2.50 1.25 0.12 0.00 0.00
CI-5 P0-6 2.50 1.25 0.12 0.00 0.00
CI-7 CI-8 2.72 1.47 0.34 0.00 0.00
CI-8 P0-9 2.85 1.60 0.47 0.00 0.00
CI-10 CI-11 4.75 3.50 2.37 0.00 0.00
CI-11 P0-12 4.88 3.63 2.50 0.00 0.00
CI-13 CI-14 4.25 3.00 1.87 0.00 0.00
CI-14 P0-15 4.38 3.13 2.00 0.00 0.00
CI-16 CI-17 4.73 3.48 2.36 0.00 0.00
CI-17 P0-18 5.09 3.84 2.72 0.00 0.00
PIPE 1 IN PIPE 1 OUT 3.08 0.58 (0.55) 0.00 0.00
2050-Storm drainage.xlsx 10-YEAR Date:6/13/2024 Time:12:58 PM Page 3 of 4

STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE
ANALYSIS(10 YEAR) 4-10-24 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
Village at Rockfish Phase V 2050 REVISION / //
LOCATION BY RECORD / /
Cumberland County,North Carolina CEK OTHER / /
CHECKED BY (SPECIFY)
CSB
DESIGN CRITERIA:
n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM
g= 226 2.ASSUME TIME OF CONCENTRATION TO
h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted)
INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM
OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity-
FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 1-0 CROWN COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and
(FT) (Fr) (FT) (FT) I CONTROL (Fr) I DISCHARGE Sediment Control Planning and Design Manual)
4.MANNINGS"n"FACTOR=0.013
CI-1 CI-2 106.00 106.16 106.74 106.74 INLET (6.74) 0.51 OVERFLOW 4.47 5.RUNOFF COEFICIENT Cc=0.50(Per CR-7107)
CI-2 CI-Y 100.00 100.15 100.74 100.74 INLET (0.74) 0.51 OVERFLOW 4.49
CI-Y CI-YY 98.00 98.15 98.73 98.73 INLET 1.27 0.52 OK 4.51
CI-YY CI-Z 97.00 97.15 97.73 97.73 INLET 2.27 0.52 OK 4.53
CI-Z CI-ZZ 96.00 96.14 96.73 96.73 INLET 3.27 0.52 OK 4.55
CI-ZZ CI-8 95.00 95.14 95.73 95.73 INLET 4.27 0.52 OK 4.57
CI#10020 CI#10054 106.00 106.02 106.64 106.64 INLET (6.64) 0.61 OVERFLOW 5.79
CI#10054 UNK FES 100.00 100.16 100.74 100.74 INLET (0.74) 0.51 OVERFLOW 4.42
CI-1 P0-2 81.10 81.20 81.54 81.54 INLET 1.81 0.56 OK 3.06
GROUND 80.05
CI-3 P0-4 80.20 80.31 80.51 80.51 INLET 1.79 0.54 OK 2.82
GROUND 79.20
CI-5 P0-6 80.21 80.31 80.51 80.51 INLET 1.79 0.54 OK 2.82
GROUND 79.20
CI-7 CI-8 80.87 80.92 80.74 80.92 OUTLET 1.80 0.33 OK 2.72
CI-8 P0-9 80.20 80.41 80.69 80.69 INLET 2.03 0.43 OK 2.63
GROUND 79.20
CI-10 CI-11 77.74 77.78 77.56 77.78 OUTLET 3.82 0.32 OK 2.96
CI-11 P0-12 75.00 75.48 77.74 77.74 INLET 3.86 0.23 OK 6.00
GROUND 74.00
CI-13 CI-14 77.47 77.49 77.28 77.49 OUTLET 3.35 0.36 OK 3.29
CI-14 P0-15 76.70 76.93 77.30 77.30 INLET 3.55 0.42 OK 2.73
GROUND 75.70
CI-16 CI-17 75.90 76.00 75.80 76.00 OUTLET 3.78 0.30 OK 2.46
CI-17 P0-18 69.60 70.51 75.90 75.90 INLET 3.88 0.04 OK 8.01
GROUND 68.60
PIPE 1 IN PIPE 1 OUT 83.90 84.18 84.17 84.18 OUTLET 1.10 0.52 OK 10.50
GROUND 81.90
2050-Storm drainage.xlsx 10-YEAR Date:6/13/2024 Time:12:58 PM Page 4 of 4

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Thursday,Jun 13 2024
PIPE 1 (25-YR)
Invert Elev Dn (ft) = 81.90 Calculations
Pipe Length (ft) = 54.00 Qmin (cfs) = 22.58
Slope (%) = 0.56 Qmax (cfs) = 22.58
Invert Elev Up (ft) = 82.20 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 18.0
Shape = Circular Highlighted
Span (in) = 18.0 Qtotal (cfs) = 22.58
No. Barrels = 3 Qpipe (cfs) = 22.58
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 4.68
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 5.61
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 83.18
HGL Up (ft) = 83.27
Embankment Hw Elev (ft) = 83.83
Top Elevation (ft) = 85.30 Hw/D (ft) = 1.09
Top Width (ft) = 39.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
eev.h! PIPE 1(25-YR) H,•;Depth l t:
05 CC 3 6:
as 00 2.80
84.00 1.80
Inlet control
83.00 0.80
82.00 - -0.20
81.00 - -1.20
80.00 -2.20
0 5 10 15 20 25 30 35 4D 45 5D 55 6D 65 70 75
CircularCulvert HGL Embank
Reach(ft)

HY-8 Culvert Analysis Report
Crossing Discharge Data
Discharge Selection Method: Recurrence
Table 1-Summary of Culvert Flows at Crossing: PIPE 1 TRIPLE
Headwat Discharg Total PIPE 1A PIPE 1B PIPE 1C Roadwa Iteration
er e Names Dischar Dischar Dischar Dischar y s
Elevatio ge (cfs) ge (cfs) ge (cfs) ge (cfs) Dischar
n (ft) ge (cfs)
83.86 10 year 20.07 6.69 6.69 6.69 0.00 8
83.99 25 year 22.58 7.53 7.53 7.53 0.00 4
84.17 100 year 26.10 8.70 8.70 8.70 0.00 7
85.30 Overtoppi 38.65 12.88 12.88 12.88 0.00 Overtoppi
ng ng
Rating Curve Plot for Crossing: PIPE 1 TRIPLE
Total Rating Curve
Crossing:PIPE 1 TRIPLE
84.15-
84.10-
0 84.05-
a
d
W
m 84.00-
m -
w -
2
83.95-
83.90-
83.85-
20 21 22 23 24 25 28
Total Discharge(cfs)

Culvert Data: PIPE 1A
Table 1-Culvert Summary Table: PIPE 1A
Disc Total Culv Head Inle Out Fl Nor Crit Ou Tail Outl Tail
harg Disc ert water t let o mal ical tle wate et wate
e harg Disc Eleva Con Con w Dep De t r Vel r
Nam e harg tion trol trol Ty th pth De Dept ocit Velo
es (cfs) e (ft) Dep Dep pe (ft) (ft) pth h (ft) y city
(cfs) th th (ft) (ft/ (ft/s
(ft) (ft) s) )
10 20.07 6.69 83.86 1.58 1.66 7- 1.00 1.0 1.0 0.47 5.34 0.89
year cfs cfs 5 M 0 0
2c
25 22.58 7.53 83.99 1.73 1.78 7- 1.10 1.0 1.0 0.50 5.62 0.92
year cfs cfs 5 M 6 6
2c
100 26.10 8.70 84.17 1.97 1.96 7- 1.26 1.1 1.1 0.55 6.03 0.97
year cfs cfs 3 M 4 4
2c
Culvert Barrel Data
Culvert Barrel Type Straight Culvert
Inlet Elevation (invert): 82.20 ft,
Outlet Elevation (invert): 81.90 ft
Culvert Length: 54.00 ft,
Culvert Slope: 0.0056

Culvert Performance Curve Plot: PIPE 1A
Performance Curve
Culvert:PIPE 1A
0 0
Inlet Control Elev Outlet Control Elev
8415-
8410-
8405-tg _ �'I
o
84.00-_
m 83.95- i' I
= 83.90-
A"
83.85-
83.80-
20 21 22 23 24 25 26
Total Discharge(cfs)

Water Surface Profile Plot for Culvert: PIPE 1A
Crossing-PIPE 1 TRIPLE,Design Discharge-26.1 cfs
Culvert-PIPE 1A,Culvert Discharge-8.7 cfs
85.0-
84.5-
84.0
c _
o _
83.5—
a) _
lu _
83.0-
82.5-
•
82.0-
990 1000 1010 1020 1030 1040 10550 1060 1070
Station(ft)
Site Data - PIPE 1A
Site Data Option: Culvert Invert Data
Inlet Station: 1000.00 ft
Inlet Elevation: 82.20 ft
Outlet Station: 1054.00 ft
Outlet Elevation: 81.90 ft
Number of Barrels: 1
Culvert Data Summary- PIPE 1A
Barrel Shape: Circular
Barrel Diameter: 1.50 ft
Barrel Material: Concrete
Embedment: 0.00 in
Barrel Manning's n: 0.0120

Culvert Type: Straight
Inlet Configuration: Square Edge with Headwall
Inlet Depression: None
Culvert Data: PIPE 1B
Table 2-Culvert Summary Table: PIPE 1B
Disc Total Culv Head Inle Out Fl Nor Crit Ou Tail Outl Tail
harg Disc ert water t let o mal ical tle wate et wate
e harg Disc Eleva Con Con w Dep De t r Vel r
Nam e harg tion trol trol Ty th pth De Dept ocit Velo
es (cfs) e (ft) Dep Dep pe (ft) (ft) pth h (ft) y city
(cfs) th th (ft) (ft/ (ft/s
(ft) (ft) s) )
10 20.07 6.69 83.86 1.58 1.66 7- 1.00 1.0 1.0 0.47 5.34 0.89
year cfs cfs 5 M 0 0
2c
25 22.58 7.53 83.99 1.73 1.78 7- 1.10 1.0 1.0 0.50 5.62 0.92
year cfs cfs 5 M 6 6
2c
100 26.10 8.70 84.17 1.97 1.96 7- 1.26 1.1 1.1 0.55 6.03 0.97
year cfs cfs 3 M 4 4
2c
Culvert Barrel Data
Culvert Barrel Type Straight Culvert
Inlet Elevation (invert): 82.20 ft,
Outlet Elevation (invert): 81.90 ft
Culvert Length: 54.00 ft,
Culvert Slope: 0.0056

Culvert Performance Curve Plot: PIPE 1B
Performance Curve
Culvert:PIPE 1B
0 0
Inlet Control Elev Outlet Control Elev
8415-
8410-
8405-tg _ �'I
o
84.00-_
m 83.95- i' I
= 83.90-
A�
83.85-
83.80-
20 21 22 23 24 25 26
Total Discharge(cfs)

Water Surface Profile Plot for Culvert: PIPE 1B
Crossing-PIPE 1 TRIPLE,Design Discharge-26.1 cfs
Culvert-PIPE 1B,Culvert Discharge-8.7 cfs
85.0-
84.5-
84.0
c _
o _
83.5—
a) _
1u _
83.0-
82.5-
•
82.0-
990 1000 1010 1020 1030 1040 10550 1060 1070
Station(ft)
Site Data - PIPE 1B
Site Data Option: Culvert Invert Data
Inlet Station: 1000.00 ft
Inlet Elevation: 82.20 ft
Outlet Station: 1054.00 ft
Outlet Elevation: 81.90 ft
Number of Barrels: 1
Culvert Data Summary- PIPE 1B
Barrel Shape: Circular
Barrel Diameter: 1.50 ft
Barrel Material: Concrete
Embedment: 0.00 in
Barrel Manning's n: 0.0120

Culvert Type: Straight
Inlet Configuration: Square Edge with Headwall
Inlet Depression: None
Culvert Data: PIPE 1C
Table 3-Culvert Summary Table: PIPE 1C
Disc Total Culv Head Inle Out Fl Nor Crit Ou Tail Outl Tail
harg Disc ert water t let o mal ical tle wate et wate
e harg Disc Eleva Con Con w Dep De t r Vel r
Nam e harg tion trol trol Ty th pth De Dept ocit Velo
es (cfs) e (ft) Dep Dep pe (ft) (ft) pth h (ft) y city
(cfs) th th (ft) (ft/ (ft/s
(ft) (ft) s) )
10 20.07 6.69 83.86 1.58 1.66 7- 1.00 1.0 1.0 0.47 5.34 0.89
year cfs cfs 5 M 0 0
2c
25 22.58 7.53 83.99 1.73 1.78 7- 1.10 1.0 1.0 0.50 5.62 0.92
year cfs cfs 5 M 6 6
2c
100 26.10 8.70 84.17 1.97 1.96 7- 1.26 1.1 1.1 0.55 6.03 0.97
year cfs cfs 3 M 4 4
2c
Culvert Barrel Data
Culvert Barrel Type Straight Culvert
Inlet Elevation (invert): 82.20 ft,
Outlet Elevation (invert): 81.90 ft
Culvert Length: 54.00 ft,
Culvert Slope: 0.0056

Culvert Performance Curve Plot: PIPE 1C
Performance Curve
Culvert:PIPE 1C
0 0
Inlet Control Elev Outlet Control Elev
8415-
8410-
8405-tg _ �'I
o
84.00-_
_ .r
m 83.95- i' I
= 83.90-
A�
83.85-
83.80-
20 21 22 23 24 25 26
Total Discharge(cfs)

Water Surface Profile Plot for Culvert: PIPE 1C
Crossing-PIPE 1 TRIPLE,Design Discharge-26.1 cfs
Culvert-PIPE 1C,Culvert Discharge-8.7 cfs
85.0-
84.5-
84.0
c _
o _
83.5—
a) _
lu _
83.0-
82.5-
•
82.0-
990 1000 1010 1020 1030 1040 10550 1060 1070
Station(ft)
Site Data - PIPE 1C
Site Data Option: Culvert Invert Data
Inlet Station: 1000.00 ft
Inlet Elevation: 82.20 ft
Outlet Station: 1054.00 ft
Outlet Elevation: 81.90 ft
Number of Barrels: 1
Culvert Data Summary- PIPE 1C
Barrel Shape: Circular
Barrel Diameter: 1.50 ft
Barrel Material: Concrete
Embedment: 0.00 in
Barrel Manning's n: 0.0120

Culvert Type: Straight
Inlet Configuration: Square Edge with Headwall
Inlet Depression: None
Tailwater Data for Crossing: PIPE 1 TRIPLE
Table 2-Downstream Channel Rating Curve(Crossing: PIPE 1 TRIPLE)
Flow(cfs) Water Velocity Depth (ft) Shear (psf) Froude
Surface (ft/s) Number
Elev(ft)
20.07 82.57 0.47 0.89 0.09 0.25
22.58 82.60 0.50 0.92 0.09 0.25
26.10 82.65 0.55 0.97 0.10 0.25
Tailwater Channel Data - PIPE 1 TRIPLE
Tailwater Channel Option: Trapezoidal Channel
Bottom Width: 40.00 ft
Side Slope (H:V): 17.00 (_:1)
Channel Slope: 0.0030
Channel Manning's n: 0.0500
Channel Invert Elevation: 82.10 ft
Roadway Data for Crossing: PIPE 1 TRIPLE
Roadway Profile Shape: Constant Roadway Elevation
Crest Length: 5.00 ft
Crest Elevation: 85.30 ft
Roadway Surface: Paved
Roadway Top Width: 39.00 ft

NORTH North American Green
AMERICAN 5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
GREEN Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
CHANNEL ANALYSIS
>>>Steep lot swale
Name Steep lot swale
Discharge 0.5
Channel Slope 0.08
Channel Bottom Width 0
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardence Class D 2-6 in
Vegetation Type Bunch Type
Vegetation Density Fair 50-64%
Soil Type Sandy Loam(GM)
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress Factor Pattern
Unreinforced Straight 0.5 cfs 2.62 ft/s 0.25 ft 0.039 4 lbs/ft2 1.24 lbs/ft2 3.22 STABLE --
Vegetation
Underlying Straight 0.5 cfs 2.62 ft/s 0.25 ft 0.039 1.1 lbs/ft2 0.59 lbs/ft2 1.87 STABLE
Substrate

NORTH North American Green
AMERICAN 5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
GREEN Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
SLOPE ANALYSIS
>>>3:125'
Country United States
State/Region North Carolina
City Fayetteville
Annual R Factor 300.00
Adjusted R Factor 246.00
Total Slope Length 25
Protection Type Permanent
Protection Period 9
Beginning Month June
Slope Gradient(H:1) 3
Soil Type Sandy Loam
K Factor 0.19
Reach 1
Start: Oft End: 25 ft
Vegetation Type: 80-95%
Material ASL bare ASL mat MSL bare MSL mat Soil Loss SF Remarks Staple/App
Tolerance Rate
S75 0.5 in 0.0 in 0.9 in 0.0 in 0.25 in 7.055 STABLE D
S200 0.5 in 0.0 in 0.9 in 0.0 in 0.25 in >10 STABLE D
Estb. Veg. 0.9 in 0.0 in N/A in N/A in 0.03 in 0.894 UNSTABLE --

VILLAGE AT ROCKFISH PHASE V
STORM WATER CALCULATIONS
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