RANDY MARION FORD LINCOLN DEALERSHIP - 2017-06-10-NCDENR WQ REPORT

Randy Marion Ford Lincoln
Dealership
Gateway Crossing Drive
City of Statesville, NC

NCDENR STORMWATER, WATER QUALITY
AND DETENTION REPORT

PDA # 2017-06-10
January 23, 2019

01 - 23 - 19

Randy Marion Ford Lincoln
Dealership
City of Statesville, NC
PDA #2017-06-10

NCDENR Table of Contents

SECTION ONE………………………………… PROJECT NARRATIVE

SECTION TWO……………………………….. REFERENCE MAPS
(NRCS Soils, Deed, LLC Verification)

SECTION THREE……………………………… STORM SEWER CALCULATIONS

SECTION FOUR…..……………………………INLET DRAINAGE AREA MAP

SECTION FIVE…..…………………..…………WATER QUALITY CALCULATIONS

SECTION SIX…..…………………..…..………DETENTION CALCULATIONS

SECTION SEVEN…..…………………..……..WQ & DETENTION DRAINAGE
AREA MAP

SECTION 1
Project Narrative

PROJECT NARRATIVE
FOR
Randy Marion Ford Lincoln Dealership
(Gateway Center Road)
(PDA #2017-06-10)
January 23, 2019

PROJECT DESCRIPTION

This property is a medium sized commercial parcel (16.25 acres), including one(1) existing
entrance driveway (Gateway Center Drive) and is located within the City of Statesville, NC city
limits. The main entrance to the project is located at the south end of the project, at the end of
Gateway Center Drive. A proposed secondary driveway will be located off of Fox Avenue just
west of the project site. This allows auto delivery trucks to enter and exit the site without
requiring to turn around. The site will be serviced with existing public water and sewer services.
This project currently has a Phase 1 and 2 erosion control permit through Iredell County to
initiate rough grading. The total proposed onsite disturbed area for the project will be (16.25) +/-
acres. Some disturbance will be needed within the NCDOT (I-77) right-of-way for drainage
discharge during the final construction stages.

The current property was previously used as an outdoor theater and mostly had gravel and paved
pavement areas along with some wooded areas. This site is not located within a WS-IV critical
watershed, nor a FEMA Floodplain. The site has been designed to meet the latest NCDENR
SCM criteria for high density (BUA). Which means an SCM has been designed to treat the
increase in impervious over existing (grandfathered) impervious surface. See plans sheet DA-7.2
for more information.

REQUIRED IMPERVIOUS SURFACE AREA = 13.18 Ac. – 5.46 Ac. = 7.72 Ac.
THEREFORE OK, 8.01 Ac. > 7.72 Ac.

SITE IMPERVIOUS SUMMARY
ENTIRE SITE
(split at creek)
Site Area
(Ac.)
Existing
Impervious
Proposed
Impervious
Proposed
Impervious
(%)
High
Density

EXISTING SITE 16.25 Ac. 5.46 Ac. - 33.57% YES
PROPOSED SITE 16.25 Ac. - 13.18 Ac. 80.01% YES
PROPOSED
TREATMENT AREA
8.01 Ac.

NOTE: SITE IS NOT LOCATED WITHIN A WATER PROTECTED WATERSHED AREA
NOTE: TOTAL TREATMENT AREA = 8.67 Ac. (0.66 Ac. Pervious) + (8.01 Impervious)

WATER QUALITY AND UNDERGROUND DETENTION

The existing drainage pattern generally sheet flows across gravel and pavement areas from south
to the north, to an existing ditch (center of site) and discharges to the NCDOT right-of-way at the
Northeast corner of the site. A small drainage area also drains to the Southwest corner of the site.
No existing jurisdictional streams or wetlands are within nor near the site.

The proposed site will mostly be paved parking and product storage (autos) and drain to RCP
storm piping systems. The northern portion of the site will drain directly into the underground
SCM facility. It has been designed to provide water quality treatment and detention for that
treatment area only. Only the required treatment area will be sent to the underground facility (see
sheet DA-7.2 for treatment area calculations). The primary treatment will use isolator rows and
the overall water quality treatment will use infiltration over the entire facility using
ADS/Stormtech chamber system. The first flush will be infiltrated into the soil, while the
remaining storm events will discharge through a permanent concrete control structure at the
Northeast corner of the site. This discharges directly into the NCDOT I-77 area. An NCDOT
encroachment permit will be sought. Final detention discharge Qs are shown below and on the
Underground Detention Drainage Plan (sheet DA-7.2). The proposed underground SCM
detention calculations are included in this report.

The southern portion of the site currently discharges into the NCDOT R-O-W and eventually
drains into two(2) existing culverts crossing the interstate roads (from west to east). Some
grading will occur within the right-of-way, but no changes to those existing culvert pipes will be
made per these plans. The proposed design picks up paved areas and discharges to the same
location. Permanent rip-rap has been provided for both the UG facility and east discharge
locations.

UNDERGROUND DETENTION ROUTING SUMMARY
Storm
Event
Drainage
Area
Pre-Dev. Q Post-Dev. Q Post-dev Q
Discharge
Criteria Met
(24 Hour)
2 year 24.60 Ac. 10.25 cfs 44.31 cfs 1.54 cfs Yes
10 year 24.60 Ac. 21.67 cfs 66.62 cfs 2.74 cfs Yes
100 year 24.60 Ac. 41.78 cfs 101.67 cfs 113.57 cfs N/A

EROSION CONTROL

This project includes a single phase erosion control plan. Initially the northwest and northeastern
borders of the property will be protected by silt fence. A double silt fence will be used on the
northwestern side of the property. Existing Inlet EX-DI-1 and an existing eastern inlet will be
protected with silt fence inlet protections. After the initial erosion inspection, rough grading and
the storm system will be built. Site. As the proposed inlets are built, they will also be protected
with the silt fence inlet protections. The total disturbed are for the project is only 1.07 acres.

Final stabilization will occur at the end of the phase 1 stage. Site contractor self-monitoring of
the site and visits will be done after heavy rain events to inspect for any off-site sedimentation
problems. A pre-construction meeting will be done prior to commencement of Phase 1 Erosion
construction.

Based upon my professional opinion and resulting from sound engineering, no properties will be
adversely affected by the proposed development.

If you should have any questions please feel free to call me @ 704-664-7888.

Sincerely,

Donald L. Munday, PE
Piedmont Design Associates, P.A.

SECTION 2
Reference Maps

SITE

NRCS
Soils Map

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Property Deed

State LLC
Verification
Document

Principal Office
215 West Plaza Drive
Mooresville, NC 28117
Reg Office
215 West Plaza Drive
Mooresville, NC 28117
Reg Mailing
PO Box 1559
Mooresville, NC 28115
Mailing
PO Box 1559
Mooresville, NC 28115
Member
Jennifer D Mills Irrevocable Trust UTA Respecting Randy Marion Properties
215 West Plaza Drive
Mooresville NC 28117
Member
Betty J Marion
153 Sailview Road
Mooresville NC 28117
Manager
Randall L Marion
P O Box 1559
Mooresville NC 28115
• File an Annual Report/Amend an Annual Report • Upload a PDF Filing • Order a Document Online • Add
Entity to My Email Notification List • View Filings • Print an Amended a Annual Report form • Print a Pre-
Populated Annual Report form
Limited Liability Company
Legal Name
6K Properties, LLC
Information
SosId: 1564773
Status: Current-Active
Annual Report Status: Current
Citizenship: Domestic
Date Formed: 1/6/2017
Registered Agent: Marion, Randall L
Addresses
Company Officials
All LLCs are managed by their managers pursuant to N.C.G.S. 57D-3-20.
Page 1 of 2North Carolina Secretary of State Search Results
1/21/2019https://www.sosnc.gov/online_services/search/Business_Registration_Results
Mailing
215 W Plaza Dr
Mooresville, NC 28117-8229
Principal Office
215 W Plaza Dr
Mooresville, NC 28117-8229
Reg Office
215 W Plaza Dr
Mooresville, NC 28117-8229
Reg Mailing
P O Box 1559
Mooresville, NC 28115
Member
Eric Broach
133 Palmetto Drive
Mooresville NC 28117
Member
Richard Cobb
1571 Crestwood St
Newton NC 28658
Member
Rebecca J. Frost
9721 St. Bart's Lane
Huntersville NC 28078
Member
Ben Goins
1036 Winterfield Drive
Mooresville NC 28115
• File an Annual Report/Amend an Annual Report • Upload a PDF Filing • Order a Document Online • Add
Entity to My Email Notification List • View Filings • Print an Amended a Annual Report form • Print a Pre-
Populated Annual Report form
Limited Liability Company
Legal Name
Randy Marion Ford Lincoln, LLC
Information
SosId: 1371905
Status: Current-Active
Annual Report Status: Current
Citizenship: Domestic
Date Formed: 4/7/2014
Registered Agent: Marion, Randall L.
Addresses
Company Officials
All LLCs are managed by their managers pursuant to N.C.G.S. 57D-3-20.
Page 1 of 2North Carolina Secretary of State Search Results
1/23/2019https://www.sosnc.gov/online_services/search/Business_Registration_Results
Member/Manager
Randall L Marion
P O Box 1559
Mooresville NC 28115
Member/Manager
Randy Marion Incorporated
Post Office Box 1559
Mooresville NC 28115-1559
Member
Brad Sigmon
8166 Drena Drive
Sherrills Ford NC 28673
Page 2 of 2North Carolina Secretary of State Search Results
1/23/2019https://www.sosnc.gov/online_services/search/Business_Registration_Results
Member
Randall L Marion II Irrevocable Trust UTA Respecting Randy Marion Properties
215 West Plaza Drive
Mooresville NC 28117
Page 2 of 2North Carolina Secretary of State Search Results
1/21/2019https://www.sosnc.gov/online_services/search/Business_Registration_Results

SECTION 3
Storm Sewer
Calculations

NOAA Atlas 14, Volume 2, Version 3
Location name: Statesville, North Carolina, USA*
Latitude: 35.7769°, Longitude: -80.8657°
Elevation: 940.76 ft**
* source: ESRI Maps
** source: USGS
POINT PRECIPITATION FREQUENCY ESTIMATES
G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland
PF_tabular | PF_graphical | Maps_&_aerials
PF tabular
PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1
Duration
Average recurrence interval (years)
1 2 5 10 25 50 100 200 500 1000
5-min 4.50
(4.15-4.90)
5.33
(4.92-5.81)
6.25
(5.76-6.82)
6.92
(6.36-7.52)
7.70
(7.03-8.38)
8.26
(7.49-8.99)
8.77
(7.88-9.56)
9.24
(8.23-10.1)
9.79
(8.60-10.8)
10.2
(8.84-11.3)
10-min 3.60
(3.32-3.91)
4.27
(3.94-4.64)
5.01
(4.61-5.45)
5.54
(5.08-6.02)
6.14
(5.60-6.67)
6.58
(5.96-7.15)
6.97
(6.26-7.60)
7.33
(6.53-8.02)
7.75
(6.80-8.54)
8.03
(6.97-8.89)
15-min 3.00
(2.76-3.26)
3.57
(3.30-3.89)
4.22
(3.89-4.60)
4.67
(4.29-5.07)
5.19
(4.73-5.64)
5.55
(5.03-6.04)
5.87
(5.28-6.40)
6.16
(5.49-6.74)
6.50
(5.71-7.16)
6.72
(5.83-7.44)
30-min 2.05
(1.90-2.23)
2.47
(2.28-2.69)
3.00
(2.76-3.27)
3.38
(3.11-3.68)
3.84
(3.51-4.18)
4.18
(3.79-4.55)
4.50
(4.04-4.90)
4.80
(4.27-5.25)
5.17
(4.54-5.70)
5.44
(4.72-6.03)
60-min 1.28
(1.18-1.39)
1.55
(1.43-1.69)
1.92
(1.77-2.10)
2.20
(2.02-2.39)
2.56
(2.33-2.78)
2.83
(2.57-3.08)
3.10
(2.79-3.38)
3.36
(3.00-3.68)
3.71
(3.26-4.09)
3.97
(3.44-4.40)
2-hr 0.744
(0.685-0.808)
0.902
(0.830-0.983)
1.13
(1.04-1.23)
1.30
(1.19-1.42)
1.53
(1.39-1.67)
1.71
(1.54-1.86)
1.89
(1.69-2.06)
2.07
(1.83-2.27)
2.31
(2.01-2.55)
2.49
(2.15-2.77)
3-hr 0.531
(0.490-0.579)
0.643
(0.593-0.703)
0.808
(0.743-0.882)
0.935
(0.856-1.02)
1.11
(1.01-1.21)
1.25
(1.12-1.36)
1.38
(1.24-1.51)
1.53
(1.35-1.68)
1.72
(1.50-1.91)
1.88
(1.61-2.09)
6-hr 0.327
(0.302-0.356)
0.395
(0.365-0.430)
0.495
(0.456-0.539)
0.574
(0.527-0.624)
0.681
(0.621-0.739)
0.767
(0.694-0.833)
0.854
(0.766-0.930)
0.945
(0.837-1.03)
1.07
(0.931-1.17)
1.17
(1.00-1.28)
12-hr 0.195
(0.181-0.212)
0.236
(0.218-0.257)
0.297
(0.274-0.323)
0.345
(0.317-0.374)
0.410
(0.374-0.444)
0.463
(0.419-0.501)
0.517
(0.463-0.560)
0.574
(0.508-0.621)
0.652
(0.568-0.707)
0.714
(0.612-0.776)
24-hr 0.118
(0.109-0.128)
0.143
(0.132-0.155)
0.181
(0.167-0.196)
0.211
(0.194-0.228)
0.252
(0.231-0.272)
0.284
(0.261-0.307)
0.318
(0.290-0.344)
0.352
(0.320-0.382)
0.400
(0.362-0.434)
0.437
(0.394-0.476)
2-day 0.069
(0.064-0.075)
0.084
(0.078-0.091)
0.105
(0.097-0.114)
0.122
(0.112-0.132)
0.144
(0.133-0.156)
0.162
(0.148-0.175)
0.180
(0.165-0.194)
0.198
(0.181-0.215)
0.223
(0.202-0.242)
0.243
(0.219-0.264)
3-day 0.049
(0.046-0.053)
0.059
(0.055-0.064)
0.074
(0.069-0.080)
0.085
(0.079-0.092)
0.101
(0.093-0.109)
0.113
(0.104-0.122)
0.125
(0.115-0.135)
0.138
(0.126-0.149)
0.155
(0.141-0.168)
0.168
(0.153-0.182)
4-day 0.039
(0.037-0.042)
0.047
(0.044-0.051)
0.058
(0.054-0.063)
0.067
(0.062-0.072)
0.079
(0.073-0.085)
0.088
(0.081-0.095)
0.098
(0.090-0.106)
0.107
(0.099-0.116)
0.121
(0.110-0.131)
0.131
(0.119-0.142)
7-day 0.026
(0.024-0.028)
0.031
(0.029-0.033)
0.038
(0.035-0.040)
0.043
(0.040-0.046)
0.050
(0.046-0.053)
0.055
(0.051-0.059)
0.061
(0.056-0.065)
0.066
(0.061-0.071)
0.074
(0.068-0.079)
0.079
(0.073-0.085)
10-day 0.021
(0.020-0.022)
0.025
(0.023-0.026)
0.030
(0.028-0.032)
0.033
(0.031-0.036)
0.038
(0.036-0.041)
0.042
(0.040-0.045)
0.046
(0.043-0.049)
0.050
(0.047-0.053)
0.055
(0.051-0.059)
0.059
(0.055-0.063)
20-day 0.014
(0.013-0.015)
0.016
(0.016-0.017)
0.019
(0.018-0.020)
0.022
(0.020-0.023)
0.025
(0.023-0.026)
0.027
(0.025-0.029)
0.029
(0.028-0.031)
0.032
(0.030-0.034)
0.035
(0.033-0.037)
0.037
(0.035-0.040)
30-day 0.011
(0.011-0.012)
0.013
(0.013-0.014)
0.016
(0.015-0.016)
0.017
(0.016-0.018)
0.019
(0.018-0.020)
0.021
(0.020-0.022)
0.022
(0.021-0.023)
0.023
(0.022-0.025)
0.025
(0.024-0.027)
0.027
(0.025-0.028)
45-day 0.010
(0.009-0.010)
0.011
(0.011-0.012)
0.013
(0.012-0.013)
0.014
(0.013-0.014)
0.015
(0.015-0.016)
0.016
(0.016-0.017)
0.017
(0.017-0.018)
0.018
(0.017-0.019)
0.020
(0.019-0.021)
0.020
(0.019-0.022)
60-day 0.009
(0.008-0.009)
0.010
(0.010-0.010)
0.011
(0.011-0.012)
0.012
(0.012-0.013)
0.013
(0.013-0.014)
0.014
(0.014-0.015)
0.015
(0.014-0.016)
0.016
(0.015-0.017)
0.017
(0.016-0.018)
0.018
(0.017-0.019)
1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS).
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates
(for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds
are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
Please refer to NOAA Atlas 14 document for more information.
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Maps & aerials
Small scale terrain
Large scale terrain
Large scale map
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3km
2mi
+
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100km
60mi
+
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100km
60mi
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US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
National Water Center
1325 East West Highway
Silver Spring, MD 20910
Questions?: [e-mail]
Disclaimer
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60mi
Page 4 of 4Precipitation Frequency Data Server
4/24/2018https://dipper.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=35.7769&lon=-80.8657&d...
PROJECT NAME: Randy Marion Ford - Statesville BY: JCW
PROJECT NUMBER: 2017-06-10 DATE: 1/15/19
IMPERVIOUS: ONSITE only REV:
CWoods=0.25 CImperv.=0.98
CLawn=0.30 CGravel=0.95
I10 I25
6.92 7.70
POST ONSITE INLETS:
INLET #COMPOSITE Q10 Q25
Woods Lawn Imperv. Gravel Total C CFS CFS
CI-1 0.00 0.05 0.10 0.00 0.15 0.75 0.78 4.54
DI-2 0.00 0.31 0.85 0.00 1.16 0.80 6.41 39.39
DI-3 0.00 0.27 0.72 0.00 0.99 0.79 5.44 33.30
DI-4 0.00 0.42 1.53 0.00 1.95 0.83 11.25 72.19
DI-5 0.00 0.31 1.00 0.00 1.31 0.82 7.43 46.83
CI-6 0.00 0.01 0.15 0.00 0.16 0.94 1.04 7.49
CI-7 0.00 0.02 0.39 0.00 0.41 0.95 2.69 19.59
CI-9 0.00 0.02 0.58 0.00 0.60 0.96 3.97 29.30
CI-10 0.00 0.01 0.37 0.00 0.38 0.96 2.53 18.74
CI-11 0.00 0.02 0.42 0.00 0.44 0.95 2.89 21.12
CI-12 0.00 0.01 0.08 0.00 0.09 0.90 0.56 3.92
CI-13 0.00 0.32 0.47 0.00 0.79 0.70 3.85 20.90
CI-14 0.00 0.03 0.59 0.00 0.62 0.95 4.06 29.63
CI-15 0.00 0.00 0.44 0.00 0.44 0.98 2.98 22.52
CI-16 0.00 0.01 0.91 0.00 0.92 0.97 6.19 46.37
CI-17 0.00 0.01 0.10 0.00 0.11 0.92 0.70 4.94
DI-18 0.00 0.13 1.17 0.00 1.30 0.91 8.20 57.61
DI-19 0.00 0.05 1.69 0.00 1.74 0.96 11.56 85.53
CI-20A 0.00 0.02 1.19 0.00 1.21 0.97 8.11 60.51
COMPOSITE C- VALUES
STORM SEWER DESIGN
Drainage Areas (Acres)
C-VALUE.xls Page 1
CI-1DI-2DI-3DI-4
DI-4CI-5CI-6CI-7WW-8
UG-DETCI-9CI-10CI-11
UG-DETCI-15CI-16CI-17
CI-12CI-13CI-14CI-15
CI-18UG-DETCI-19JB-20
CI-20AUG-DETJB-20

SECTION 4
Inlet Drainage
Area Map

-2.0:1-2.3:1-2.9:1-1.91%-1.83%-2.23%-1.66%-1.65%-2.37%-1.02%-0.53%-2.63%-1.50%
-0.43%-2.43%-0.15%-4.99%-4.02%-4.02%-2.51%
-2.69%
-2.44%-2.92%-10.05%
-1.99%-2.00%-0.94%-2.20%-2.13%-2.90%-2.46%-2.00%-2.00%-1.52%-1.08%-3.05%-3.72%-4.48%-2.79%-2.00%-0.87%-2.26%
-3.98%
-2.00%
-2.31
%
-2.33%
-3.66%1.00%-42.74%-43.19%-2.94%-4.24%-3.91%
-0.60%
-2.00%
-2.00%-2.23%-2.18%
-1.99%
-1.97%-3.60%-4
.84%
-28.56%
-2.83%
-3.01%-2.80%-2.26%
-2.92%-4.14%-1.00%
-17.51%-8.86%-4.80%
-1.41%-1.39%
-2.0:1
-3.80%-49.23%-1.41%-2.38%-1.00%-1.00%-1.00%-2.00%-2.17%-4.12%
-3.57
%-1.20%-0.80%
-2.
8
5
%
-2.68%
-2.23%-1.00%-1.00%-3.06%1.00%-1.00%-1.41%-5.57%-4.06%HW-UGN02°23'55"E211.83 S79°40'47"E39.53S79°40'47"E50.48N02°23'55"E301.41
N19°
5
2
'
0
1
"
E
41.0
6N69°43'27"W18.96N23
°
1
1
'
3
9
"
E
52.7
1
S19°
2
2
'
1
3
"
W
87.30 S79°35'36"E229.87N79°35'36"W609.35L6L7L8
L11L12 L13L14 -3.08%935.37-2.69%-3.43%2.85%930928929931932933934 931932933-2.92%925926925924926-5.29%CI-6CI-736" RCP CI-9CI-1015" RCP EX SSMH FFL 1064RIM=916.92(916.6 COS)INV=898.76(COS)EX SSMH FFL 1074RIM=930.15(928.61 COS)INV=901.3(COS)927928929935940932933934936937938939926
927 922923924EX-SSMH-1RIM: 935.97INV.:924.22Fox AvenueGateway Crossing Drive
EXIST.SIGNPADEX. 30" RCPEX. 18" RCPCI-1118" RCP
WW-83
6
"

R
C
P
2:1 SLOPE 18" RCPJB-2024" RCP
EXIST.SIGNPOLEInterstate 77
2.64%9259219229239249269279289309319
3
2
9
3
2932932932935933934936937938 930927928929
-0.77%0.28%920920919921925926EX-SSMH-1F.F. ELEV.= 930.0SOUTHBOUND LANE
NORTHBOUND LANE
9
1
5
.
2
9
9
1
3
.
0
018" RCPPROPOSED FORDBUILDING(57,597 SF)FUTURE BUILDING(10,458 SF)DI-2DI-3DI-4DI-530" RCP922930928929931932933934932928925 925930929930935930928928929931931931932930930930928928929929930935931932933
934936 CI-13CI-1218" RCPCI-1518" RCP30" RCP30" RCP24" RCP18" RCP915920PERM. STORMWATERAND ACCESS ESMT.PERM. STORMWATERAND ACCESS ESMT.F.F. ELEV. = 930.00PROPOSED FORDBUILDING(57,597 SF)920925925924HP 931932CI-118" RCP930935935934
EX. HEADWALL30" INV. = 915.9118" INV. = 916.58930928928929929931930929929929929931
HP40.00'CI-1624" RCP24"
RCP925922922922923924926927LPHPHPCS-UG274.18'182.0'24" RCP926
921926927928928929929929929 CI-20ACI-14CI-17COCOCOCOCO COCOCOCOCOCOCO COCOCOCOCO24" RCP24" RCP920921922
915920SSCO-4SSCO-5F.F. ELEV. = 930.00PERM. CLASS 'B'RIP-RAP (6'x16')921 921 917926927
92892
9 CI-1924" RCPCI-1824" RCPPROP. UNDERGROUNDWQ/DETENTION (SCM)STONE BOT ELEV. = 914.5BOT ELEV. =915.00TOP ELEV. = 917.50STONE TOP ELEV. = 918.50126± LF OF 8"ROOF DRAIN @0.5% MIN.179± LF OF 6" ROOFDRAIN @0.5% MIN.169± LF OF 6" ROOFDRAIN @ 0.5% MIN.496± LF OF 6" ROOFDRAIN @ 0.5% MIN.235± LF OF 6" ROOFDRAIN @ 0.5% MIN.201± LF OF 6" ROOFDRAIN @ 0.5% MIN.250± LF OF 6" ROOFDRAIN @ 0.5% MIN.CO115± LF OF 12" ROOFDRAIN @ 1.0% MIN.AREA DI-2AREA: 1.16 AcreC: 0.80TOC: 5 MIN.AREA CI-1AREA: 0.15 AcreC: 0.75TOC: 5 MIN.AREA DI-3AREA: 0.99 AcreC: 0.79TOC: 5 MIN.AREA DI-4AREA: 1.95 AcreC: 0.83TOC: 5 MIN.AREA CI-6AREA: 0.16 AcreC: 0.94TOC: 5 MIN.AREA CI-7AREA: 0.41 AcreC: 0.95TOC: 5 MIN.AREA CI-10AREA: 0.38 AcreC: 0.96TOC: 5 MIN.AREA DI-5AREA: 1.31 AcreC: 0.82TOC: 5 MIN.AREA CI-9AREA: 0.60 AcreC: 0.96TOC: 5 MIN.AREA CI-20AAREA: 1.21 AcreC: 0.97TOC: 5 MIN.AREA CI-19AREA: 1.74 AcreC: 0.96TOC: 5 MIN.AREA CI-15AREA: 0.44 AcreC: 0.98TOC: 5 MIN.AREA CI-14AREA: 0.62 AcreC: 0.95TOC: 5 MIN.AREA CI-18AREA: 1.30 AcreC: 0.91TOC: 5 MIN.AREA CI-16AREA: 0.92 AcreC: 0.97TOC: 5 MIN.AREA CI-12AREA: 0.09 AcreC: 0.90TOC: 5 MIN.AREA CI-13AREA: 0.79 AcreC: 0.70TOC: 5 MIN.AREA CI-17AREA: 0.11 AcreC: 0.92TOC: 5 MIN.AREA CI-11AREA: 0.44 AcreC: 0.95TOC: 5 MIN.Suite 101 Westfield Center , 125 East Plaza Drive
Mooresville, North Carolina 28115
Phone:[phone] Fax:[phone] www.pdapa.com
NCBELS License #: C-1007Know what'sbelow.before you dig.CallR

SECTION 5
Water Quality
Calculations

PROJECT NAME:
PROJECT NUMBER:2017-06-10
DESIGNER:J. Wehling
DATE:11/01/18
REV.:
TOTAL PROPERTY AREA
Total Site Area 694,041.31 SF 15.93 Acres
Additional Access Area 23,120.67 SF 0.53 Acres
717,161.98 SF 16.46 Acres
TOTAL SITE IMPERVIOUS AREAS % OF Total Site
Existing Impervious Area:237,686.00 SF 5.46 Acres 33.14%Existing Impervious
Proposed Impervious Area:557,656.85 SF 12.80 Acres 319,970.85 77.76%Proposed Impervious
Required Treatment Area = 7.35 46.10%Impervious Increase
Proposed Pervious Area:159,505.13 SF 3.66 Acres 22.98%Proposed Pervious
TREATED IMPERVIOUS AREAS
Total. SF Drainage Area 377,525.00 SF 8.67 Acres % of SF-DA
Proposed Pervious Area:28,610.00 SF 0.66 Acres 7.58%Proposed Pervious
Proposed Impervious Area:348,915.00 SF 8.01 Acres 92.42%Proposed Impervious
Result = 8.67 Ac. > 7.35 Ac.(Therefore, Treating greater than Required))
DETENTION IMPERVIOUS AREAS
Total DET Drainage Area 377,525.00 SF 8.67 Acres % of DET-DA
Proposed Pervious Area:28,610.00 SF 0.66 Acres 7.58%Proposed Pervious
Proposed Impervious Area:348,915.00 SF 8.01 Acres 92.42%Proposed Impervious
IMPERVIOUS DATA
STATESVILLE FORD - FOX RD
2017-06-10
01/09/19
BMP ID Pervious Area Impervious Area Total Imperv.
Fraction IA
Runoff Coeff.
Rv
Rainfall Depth
RD
Drainage Area (A) Water Quality
Volume (WQv)
A 0.66 ac 8.01 ac 8.67 ac 0.92 0.88 1.00 in 8.67 ac 27,742.28 cf
= CF
WATER QUALITY CALCULATIONS
PROJECT NAME:STATESVILLE FORD - FOX RD
REV.:
Water Quality Volume Calculation
Simple Method Water Quality Volume:
PROJECT NUMBER:
DESIGNER: J. Wehling
DATE:
NOTE: This spreadsheet has been designed to comply with the NCDENR MANUAL, Chapter C-6, Revised 01-03-2017.
R v = 0.05 + 0.9 x I A
WQ v = 43,560 * (R d x R v x A)/12
Page 1 3377-Infiltration Trench Calc
PROJECT NAME:
PROJECT NUMBER:2017-06-10
DESIGNER:J. Wehling
DATE:01/09/19
REV.:
15A NCAC 02H .1002 (43) "Runoff treatment" means that the volume of stormwater runoff
generated from all of the built upon area of a project at build-out during a storm of the required
storm depth is treated in one or more primary SCMs or a combination of Primary and Secondary
SCMs that provides equal or better treatment.
USING AVERAGE INFILTRATION RATE
28,526.36 Design Volume
0.311 Average Infiltration Rate
2 Saftey Factor
SF Acres # of test Req'd
30,574.88 0.70 6.11
USING STABILIZED INFILTRATION RATE
28,526.36 Design Volume
0.197 Stabalized Infiltration rate
2 Saftey Factor
SF Acres # of test Req'd
48,267.95 1.11 9.65
REQUIRED INFILTRATION AREA = 48,268 SF
INFILTRATION CALCULATION
STATESVILLE FORD - FOX RD

SECTION 6
Detention
Calculations

1S
EX-DA-1
2S
EX-DA-2
3S
EX-DA-3
4S
EX-DA-4
5S
EX-DA-5
6S
Post DA-1
7S
Post DA-2
8S
Post DA-3
DEV-1
Post DA for SCM #1
PRE-1
Pre Dev DA for SCM #1
SCM#1
SCM #1 ADS Chambers
Routing Diagram for Randy Marion-Ford Statesville- SC-740 - 011119
Prepared by Piedmont Design Associates, PA, Printed 1/23/2019
HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcat Reach Pond Link
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Events for Subcatchment PRE-1: Pre Dev DA for SCM #1
Event Rainfall
(inches)
Runoff
(cfs)
Volume
(acre-feet)
Depth
(inches)
1 Year 2.98 6.55 0.611 0.85
2 Year 3.62 10.25 0.911 1.26
10 Year 5.35 21.67 1.848 2.56
25 Year 6.40 29.22 2.473 3.42
50 Year 7.23 35.34 2.987 4.13
100 Year 8.09 41.78 3.533 4.89
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 2HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 1S: EX-DA-1
Runoff = 1.60 cfs @ 12.21 hrs, Volume= 0.149 af, Depth= 0.90"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
0.791 98 Paved parking, HSG A
* 0.650 61 Pasture/grassland/range, Fair, HSG B
* 0.558 55 Woods, Fair, HSG B
1.999 74 Weighted Average
1.208 60.43% Pervious Area
0.791 39.57% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
24.7 300 0.0153 0.20 Sheet Flow, Sheet Flow
Grass: Short n= 0.150 P2= 3.62"
0.5 51 0.0571 1.67 Shallow Concentrated Flow, Shallow Conc Flow
Short Grass Pasture Kv= 7.0 fps
25.2 351 Total
Subcatchment 1S: EX-DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)1
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=1.999 ac
Runoff Volume=0.149 af
Runoff Depth=0.90"
Flow Length=351'
Tc=25.2 min
CN=74
1.60 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 3HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 1S: EX-DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.50 0.28
15.00 2.54 0.63 0.11
17.00 2.69 0.72 0.08
19.00 2.79 0.78 0.06
21.00 2.87 0.83 0.05
23.00 2.95 0.87 0.04
25.00 2.98 0.90 0.00
27.00 2.98 0.90 0.00
29.00 2.98 0.90 0.00
31.00 2.98 0.90 0.00
33.00 2.98 0.90 0.00
35.00 2.98 0.90 0.00
37.00 2.98 0.90 0.00
39.00 2.98 0.90 0.00
41.00 2.98 0.90 0.00
43.00 2.98 0.90 0.00
45.00 2.98 0.90 0.00
47.00 2.98 0.90 0.00
49.00 2.98 0.90 0.00
51.00 2.98 0.90 0.00
53.00 2.98 0.90 0.00
55.00 2.98 0.90 0.00
57.00 2.98 0.90 0.00
59.00 2.98 0.90 0.00
61.00 2.98 0.90 0.00
63.00 2.98 0.90 0.00
65.00 2.98 0.90 0.00
67.00 2.98 0.90 0.00
69.00 2.98 0.90 0.00
71.00 2.98 0.90 0.00
73.00 2.98 0.90 0.00
75.00 2.98 0.90 0.00
77.00 2.98 0.90 0.00
79.00 2.98 0.90 0.00
81.00 2.98 0.90 0.00
83.00 2.98 0.90 0.00
85.00 2.98 0.90 0.00
87.00 2.98 0.90 0.00
89.00 2.98 0.90 0.00
91.00 2.98 0.90 0.00
93.00 2.98 0.90 0.00
95.00 2.98 0.90 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 4HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 2S: EX-DA-2
Runoff = 4.74 cfs @ 12.19 hrs, Volume= 0.437 af, Depth= 0.80"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
2.550 98 Paved parking, HSG A
* 0.861 61 Pasture/grassland/range, Fair, HSG B
* 3.177 55 Woods, Fair, HSG B
6.588 72 Weighted Average
4.038 61.29% Pervious Area
2.550 38.71% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
21.1 300 0.0227 0.24 Sheet Flow, Sheet Flow
Grass: Short n= 0.150 P2= 3.62"
1.2 73 0.0221 1.04 Shallow Concentrated Flow, Shallow Conc Flow
Short Grass Pasture Kv= 7.0 fps
1.2 130 0.0636 1.77 Shallow Concentrated Flow, Shallow Conc Flow
Short Grass Pasture Kv= 7.0 fps
23.5 503 Total
Subcatchment 2S: EX-DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)5
4
3
2
1
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=6.588 ac
Runoff Volume=0.437 af
Runoff Depth=0.80"
Flow Length=503'
Tc=23.5 min
CN=72
4.74 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 5HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: EX-DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.43 0.81
15.00 2.54 0.55 0.34
17.00 2.69 0.63 0.23
19.00 2.79 0.69 0.18
21.00 2.87 0.73 0.14
23.00 2.95 0.78 0.14
25.00 2.98 0.80 0.00
27.00 2.98 0.80 0.00
29.00 2.98 0.80 0.00
31.00 2.98 0.80 0.00
33.00 2.98 0.80 0.00
35.00 2.98 0.80 0.00
37.00 2.98 0.80 0.00
39.00 2.98 0.80 0.00
41.00 2.98 0.80 0.00
43.00 2.98 0.80 0.00
45.00 2.98 0.80 0.00
47.00 2.98 0.80 0.00
49.00 2.98 0.80 0.00
51.00 2.98 0.80 0.00
53.00 2.98 0.80 0.00
55.00 2.98 0.80 0.00
57.00 2.98 0.80 0.00
59.00 2.98 0.80 0.00
61.00 2.98 0.80 0.00
63.00 2.98 0.80 0.00
65.00 2.98 0.80 0.00
67.00 2.98 0.80 0.00
69.00 2.98 0.80 0.00
71.00 2.98 0.80 0.00
73.00 2.98 0.80 0.00
75.00 2.98 0.80 0.00
77.00 2.98 0.80 0.00
79.00 2.98 0.80 0.00
81.00 2.98 0.80 0.00
83.00 2.98 0.80 0.00
85.00 2.98 0.80 0.00
87.00 2.98 0.80 0.00
89.00 2.98 0.80 0.00
91.00 2.98 0.80 0.00
93.00 2.98 0.80 0.00
95.00 2.98 0.80 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 6HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 3S: EX-DA-3
Runoff = 0.04 cfs @ 12.13 hrs, Volume= 0.008 af, Depth= 0.19"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
0.000 98 Paved parking, HSG A
* 0.000 61 Pasture/grassland/range, Fair, HSG B
* 0.531 55 Woods, Fair, HSG B
0.531 55 Weighted Average
0.531 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
12.9 254 0.0560 0.33 Sheet Flow, Sheet Flow
Grass: Short n= 0.150 P2= 3.62"
Subcatchment 3S: EX-DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)0.044
0.042
0.04
0.038
0.036
0.034
0.032
0.03
0.028
0.026
0.024
0.022
0.02
0.018
0.016
0.014
0.012
0.01
0.008
0.006
0.004
0.002
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=0.531 ac
Runoff Volume=0.008 af
Runoff Depth=0.19"
Flow Length=254'
Slope=0.0560 '/'
Tc=12.9 min
CN=55
0.04 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 7HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 3S: EX-DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.05 0.02
15.00 2.54 0.09 0.01
17.00 2.69 0.12 0.01
19.00 2.79 0.14 0.01
21.00 2.87 0.16 0.00
23.00 2.95 0.18 0.00
25.00 2.98 0.19 0.00
27.00 2.98 0.19 0.00
29.00 2.98 0.19 0.00
31.00 2.98 0.19 0.00
33.00 2.98 0.19 0.00
35.00 2.98 0.19 0.00
37.00 2.98 0.19 0.00
39.00 2.98 0.19 0.00
41.00 2.98 0.19 0.00
43.00 2.98 0.19 0.00
45.00 2.98 0.19 0.00
47.00 2.98 0.19 0.00
49.00 2.98 0.19 0.00
51.00 2.98 0.19 0.00
53.00 2.98 0.19 0.00
55.00 2.98 0.19 0.00
57.00 2.98 0.19 0.00
59.00 2.98 0.19 0.00
61.00 2.98 0.19 0.00
63.00 2.98 0.19 0.00
65.00 2.98 0.19 0.00
67.00 2.98 0.19 0.00
69.00 2.98 0.19 0.00
71.00 2.98 0.19 0.00
73.00 2.98 0.19 0.00
75.00 2.98 0.19 0.00
77.00 2.98 0.19 0.00
79.00 2.98 0.19 0.00
81.00 2.98 0.19 0.00
83.00 2.98 0.19 0.00
85.00 2.98 0.19 0.00
87.00 2.98 0.19 0.00
89.00 2.98 0.19 0.00
91.00 2.98 0.19 0.00
93.00 2.98 0.19 0.00
95.00 2.98 0.19 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 8HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 4S: EX-DA-4
Runoff = 0.72 cfs @ 11.98 hrs, Volume= 0.038 af, Depth= 0.50"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
0.119 98 Paved parking, HSG A
* 0.650 61 Pasture/grassland/range, Fair, HSG B
* 0.144 55 Woods, Fair, HSG B
0.913 65 Weighted Average
0.794 86.97% Pervious Area
0.119 13.03% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 4S: EX-DA-4
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=0.913 ac
Runoff Volume=0.038 af
Runoff Depth=0.50"
Tc=5.0 min
CN=65
0.72 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 9HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 4S: EX-DA-4
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.23 0.06
15.00 2.54 0.31 0.03
17.00 2.69 0.37 0.02
19.00 2.79 0.42 0.02
21.00 2.87 0.45 0.02
23.00 2.95 0.48 0.01
25.00 2.98 0.50 0.00
27.00 2.98 0.50 0.00
29.00 2.98 0.50 0.00
31.00 2.98 0.50 0.00
33.00 2.98 0.50 0.00
35.00 2.98 0.50 0.00
37.00 2.98 0.50 0.00
39.00 2.98 0.50 0.00
41.00 2.98 0.50 0.00
43.00 2.98 0.50 0.00
45.00 2.98 0.50 0.00
47.00 2.98 0.50 0.00
49.00 2.98 0.50 0.00
51.00 2.98 0.50 0.00
53.00 2.98 0.50 0.00
55.00 2.98 0.50 0.00
57.00 2.98 0.50 0.00
59.00 2.98 0.50 0.00
61.00 2.98 0.50 0.00
63.00 2.98 0.50 0.00
65.00 2.98 0.50 0.00
67.00 2.98 0.50 0.00
69.00 2.98 0.50 0.00
71.00 2.98 0.50 0.00
73.00 2.98 0.50 0.00
75.00 2.98 0.50 0.00
77.00 2.98 0.50 0.00
79.00 2.98 0.50 0.00
81.00 2.98 0.50 0.00
83.00 2.98 0.50 0.00
85.00 2.98 0.50 0.00
87.00 2.98 0.50 0.00
89.00 2.98 0.50 0.00
91.00 2.98 0.50 0.00
93.00 2.98 0.50 0.00
95.00 2.98 0.50 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 10HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 5S: EX-DA-5
Runoff = 5.08 cfs @ 12.11 hrs, Volume= 0.388 af, Depth= 0.75"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
1.865 98 Paved parking, HSG A
* 3.345 61 Pasture/grassland/range, Fair, HSG B
* 1.013 55 Woods, Fair, HSG B
6.223 71 Weighted Average
4.358 70.03% Pervious Area
1.865 29.97% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
14.1 300 0.0624 0.36 Sheet Flow, Sheet Flow
Grass: Short n= 0.150 P2= 3.62"
2.9 235 0.0384 1.37 Shallow Concentrated Flow, Shallow Conc Flow
Short Grass Pasture Kv= 7.0 fps
17.0 535 Total
Subcatchment 5S: EX-DA-5
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)5
4
3
2
1
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=6.223 ac
Runoff Volume=0.388 af
Runoff Depth=0.75"
Flow Length=535'
Tc=17.0 min
CN=71
5.08 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 11HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: EX-DA-5
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.40 0.64
15.00 2.54 0.51 0.30
17.00 2.69 0.59 0.21
19.00 2.79 0.65 0.16
21.00 2.87 0.69 0.13
23.00 2.95 0.73 0.12
25.00 2.98 0.75 0.00
27.00 2.98 0.75 0.00
29.00 2.98 0.75 0.00
31.00 2.98 0.75 0.00
33.00 2.98 0.75 0.00
35.00 2.98 0.75 0.00
37.00 2.98 0.75 0.00
39.00 2.98 0.75 0.00
41.00 2.98 0.75 0.00
43.00 2.98 0.75 0.00
45.00 2.98 0.75 0.00
47.00 2.98 0.75 0.00
49.00 2.98 0.75 0.00
51.00 2.98 0.75 0.00
53.00 2.98 0.75 0.00
55.00 2.98 0.75 0.00
57.00 2.98 0.75 0.00
59.00 2.98 0.75 0.00
61.00 2.98 0.75 0.00
63.00 2.98 0.75 0.00
65.00 2.98 0.75 0.00
67.00 2.98 0.75 0.00
69.00 2.98 0.75 0.00
71.00 2.98 0.75 0.00
73.00 2.98 0.75 0.00
75.00 2.98 0.75 0.00
77.00 2.98 0.75 0.00
79.00 2.98 0.75 0.00
81.00 2.98 0.75 0.00
83.00 2.98 0.75 0.00
85.00 2.98 0.75 0.00
87.00 2.98 0.75 0.00
89.00 2.98 0.75 0.00
91.00 2.98 0.75 0.00
93.00 2.98 0.75 0.00
95.00 2.98 0.75 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 12HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 6S: Post DA-1
Runoff = 36.37 cfs @ 11.96 hrs, Volume= 1.787 af, Depth= 2.33"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (sf) CN Description
359,726 98 Paved parking, HSG A
* 41,023 61 Pasture/grassland/range, Fair, HSG B
400,749 94 Weighted Average
41,023 10.24% Pervious Area
359,726 89.76% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 6S: Post DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=400,749 sf
Runoff Volume=1.787 af
Runoff Depth=2.33"
Tc=5.0 min
CN=94
36.37 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 13HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 6S: Post DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.01 0.07
7.00 0.30 0.03 0.20
9.00 0.44 0.10 0.47
11.00 0.70 0.27 1.36
13.00 2.30 1.68 1.70
15.00 2.54 1.91 0.81
17.00 2.69 2.05 0.55
19.00 2.79 2.15 0.42
21.00 2.87 2.23 0.33
23.00 2.95 2.30 0.31
25.00 2.98 2.33 0.00
27.00 2.98 2.33 0.00
29.00 2.98 2.33 0.00
31.00 2.98 2.33 0.00
33.00 2.98 2.33 0.00
35.00 2.98 2.33 0.00
37.00 2.98 2.33 0.00
39.00 2.98 2.33 0.00
41.00 2.98 2.33 0.00
43.00 2.98 2.33 0.00
45.00 2.98 2.33 0.00
47.00 2.98 2.33 0.00
49.00 2.98 2.33 0.00
51.00 2.98 2.33 0.00
53.00 2.98 2.33 0.00
55.00 2.98 2.33 0.00
57.00 2.98 2.33 0.00
59.00 2.98 2.33 0.00
61.00 2.98 2.33 0.00
63.00 2.98 2.33 0.00
65.00 2.98 2.33 0.00
67.00 2.98 2.33 0.00
69.00 2.98 2.33 0.00
71.00 2.98 2.33 0.00
73.00 2.98 2.33 0.00
75.00 2.98 2.33 0.00
77.00 2.98 2.33 0.00
79.00 2.98 2.33 0.00
81.00 2.98 2.33 0.00
83.00 2.98 2.33 0.00
85.00 2.98 2.33 0.00
87.00 2.98 2.33 0.00
89.00 2.98 2.33 0.00
91.00 2.98 2.33 0.00
93.00 2.98 2.33 0.00
95.00 2.98 2.33 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 14HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 7S: Post DA-2
Runoff = 21.23 cfs @ 11.96 hrs, Volume= 0.984 af, Depth= 1.80"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (sf) CN Description
207,407 98 Paved parking, HSG A
* 78,302 61 Pasture/grassland/range, Fair, HSG B
285,709 88 Weighted Average
78,302 27.41% Pervious Area
207,407 72.59% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 7S: Post DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=285,709 sf
Runoff Volume=0.984 af
Runoff Depth=1.80"
Tc=5.0 min
CN=88
21.23 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 15HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 7S: Post DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.01
9.00 0.44 0.02 0.12
11.00 0.70 0.10 0.56
13.00 2.30 1.21 1.07
15.00 2.54 1.42 0.52
17.00 2.69 1.54 0.35
19.00 2.79 1.64 0.27
21.00 2.87 1.71 0.22
23.00 2.95 1.77 0.20
25.00 2.98 1.80 0.00
27.00 2.98 1.80 0.00
29.00 2.98 1.80 0.00
31.00 2.98 1.80 0.00
33.00 2.98 1.80 0.00
35.00 2.98 1.80 0.00
37.00 2.98 1.80 0.00
39.00 2.98 1.80 0.00
41.00 2.98 1.80 0.00
43.00 2.98 1.80 0.00
45.00 2.98 1.80 0.00
47.00 2.98 1.80 0.00
49.00 2.98 1.80 0.00
51.00 2.98 1.80 0.00
53.00 2.98 1.80 0.00
55.00 2.98 1.80 0.00
57.00 2.98 1.80 0.00
59.00 2.98 1.80 0.00
61.00 2.98 1.80 0.00
63.00 2.98 1.80 0.00
65.00 2.98 1.80 0.00
67.00 2.98 1.80 0.00
69.00 2.98 1.80 0.00
71.00 2.98 1.80 0.00
73.00 2.98 1.80 0.00
75.00 2.98 1.80 0.00
77.00 2.98 1.80 0.00
79.00 2.98 1.80 0.00
81.00 2.98 1.80 0.00
83.00 2.98 1.80 0.00
85.00 2.98 1.80 0.00
87.00 2.98 1.80 0.00
89.00 2.98 1.80 0.00
91.00 2.98 1.80 0.00
93.00 2.98 1.80 0.00
95.00 2.98 1.80 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 16HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment 8S: Post DA-3
Runoff = 0.75 cfs @ 11.97 hrs, Volume= 0.035 af, Depth= 0.85"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (sf) CN Description
7,086 98 Paved parking, HSG A
* 14,478 61 Pasture/grassland/range, Fair, HSG B
21,564 73 Weighted Average
14,478 67.14% Pervious Area
7,086 32.86% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 8S: Post DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=21,564 sf
Runoff Volume=0.035 af
Runoff Depth=0.85"
Tc=5.0 min
CN=73
0.75 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 17HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 8S: Post DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.46 0.05
15.00 2.54 0.59 0.02
17.00 2.69 0.67 0.02
19.00 2.79 0.73 0.01
21.00 2.87 0.78 0.01
23.00 2.95 0.82 0.01
25.00 2.98 0.85 0.00
27.00 2.98 0.85 0.00
29.00 2.98 0.85 0.00
31.00 2.98 0.85 0.00
33.00 2.98 0.85 0.00
35.00 2.98 0.85 0.00
37.00 2.98 0.85 0.00
39.00 2.98 0.85 0.00
41.00 2.98 0.85 0.00
43.00 2.98 0.85 0.00
45.00 2.98 0.85 0.00
47.00 2.98 0.85 0.00
49.00 2.98 0.85 0.00
51.00 2.98 0.85 0.00
53.00 2.98 0.85 0.00
55.00 2.98 0.85 0.00
57.00 2.98 0.85 0.00
59.00 2.98 0.85 0.00
61.00 2.98 0.85 0.00
63.00 2.98 0.85 0.00
65.00 2.98 0.85 0.00
67.00 2.98 0.85 0.00
69.00 2.98 0.85 0.00
71.00 2.98 0.85 0.00
73.00 2.98 0.85 0.00
75.00 2.98 0.85 0.00
77.00 2.98 0.85 0.00
79.00 2.98 0.85 0.00
81.00 2.98 0.85 0.00
83.00 2.98 0.85 0.00
85.00 2.98 0.85 0.00
87.00 2.98 0.85 0.00
89.00 2.98 0.85 0.00
91.00 2.98 0.85 0.00
93.00 2.98 0.85 0.00
95.00 2.98 0.85 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 18HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment DEV-1: Post DA for SCM #1
Runoff = 35.98 cfs @ 11.95 hrs, Volume= 1.830 af, Depth= 2.53"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
* 8.670 96 SCM #1 Post-Dev
8.670 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment DEV-1: Post DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=8.670 ac
Runoff Volume=1.830 af
Runoff Depth=2.53"
Tc=5.0 min
CN=96
35.98 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 19HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment DEV-1: Post DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.03
5.00 0.19 0.02 0.15
7.00 0.30 0.07 0.29
9.00 0.44 0.16 0.57
11.00 0.70 0.37 1.49
13.00 2.30 1.87 1.65
15.00 2.54 2.10 0.78
17.00 2.69 2.24 0.53
19.00 2.79 2.35 0.40
21.00 2.87 2.43 0.32
23.00 2.95 2.50 0.30
25.00 2.98 2.53 0.00
27.00 2.98 2.53 0.00
29.00 2.98 2.53 0.00
31.00 2.98 2.53 0.00
33.00 2.98 2.53 0.00
35.00 2.98 2.53 0.00
37.00 2.98 2.53 0.00
39.00 2.98 2.53 0.00
41.00 2.98 2.53 0.00
43.00 2.98 2.53 0.00
45.00 2.98 2.53 0.00
47.00 2.98 2.53 0.00
49.00 2.98 2.53 0.00
51.00 2.98 2.53 0.00
53.00 2.98 2.53 0.00
55.00 2.98 2.53 0.00
57.00 2.98 2.53 0.00
59.00 2.98 2.53 0.00
61.00 2.98 2.53 0.00
63.00 2.98 2.53 0.00
65.00 2.98 2.53 0.00
67.00 2.98 2.53 0.00
69.00 2.98 2.53 0.00
71.00 2.98 2.53 0.00
73.00 2.98 2.53 0.00
75.00 2.98 2.53 0.00
77.00 2.98 2.53 0.00
79.00 2.98 2.53 0.00
81.00 2.98 2.53 0.00
83.00 2.98 2.53 0.00
85.00 2.98 2.53 0.00
87.00 2.98 2.53 0.00
89.00 2.98 2.53 0.00
91.00 2.98 2.53 0.00
93.00 2.98 2.53 0.00
95.00 2.98 2.53 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 20HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff = 6.55 cfs @ 12.20 hrs, Volume= 0.611 af, Depth= 0.85"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Type II 24-hr 1 Year Rainfall=2.98"
Area (ac) CN Description
* 4.480 55 Woods, Fair, HSG B
* 0.710 61 Grass cover, Fair, HSG B
2.770 98 Paved parking, HSG B
* 0.710 98 Gravel surface, HSG B
8.670 73 Weighted Average
5.190 59.86% Pervious Area
3.480 40.14% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
21.6 300 0.0232 0.23 Sheet Flow, Sheet Flow
Grass: Short n= 0.150 P2= 3.38"
2.0 131 0.0030 1.11 Shallow Concentrated Flow, Shallow Concentrated Flow
Paved Kv= 20.3 fps
0.9 189 0.0478 3.52 Shallow Concentrated Flow, Shallow Concentrated Flow
Unpaved Kv= 16.1 fps
24.5 620 Total
Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)7
6
5
4
3
2
1
0
Type II 24-hr
1 Year Rainfall=2.98"
Runoff Area=8.670 ac
Runoff Volume=0.611 af
Runoff Depth=0.85"
Flow Length=620'
Tc=24.5 min
CN=73
6.55 cfs
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 21HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment PRE-1: Pre Dev DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.03 0.00 0.00
3.00 0.10 0.00 0.00
5.00 0.19 0.00 0.00
7.00 0.30 0.00 0.00
9.00 0.44 0.00 0.00
11.00 0.70 0.00 0.00
13.00 2.30 0.46 1.15
15.00 2.54 0.59 0.46
17.00 2.69 0.67 0.32
19.00 2.79 0.73 0.25
21.00 2.87 0.78 0.20
23.00 2.95 0.82 0.18
25.00 2.98 0.85 0.00
27.00 2.98 0.85 0.00
29.00 2.98 0.85 0.00
31.00 2.98 0.85 0.00
33.00 2.98 0.85 0.00
35.00 2.98 0.85 0.00
37.00 2.98 0.85 0.00
39.00 2.98 0.85 0.00
41.00 2.98 0.85 0.00
43.00 2.98 0.85 0.00
45.00 2.98 0.85 0.00
47.00 2.98 0.85 0.00
49.00 2.98 0.85 0.00
51.00 2.98 0.85 0.00
53.00 2.98 0.85 0.00
55.00 2.98 0.85 0.00
57.00 2.98 0.85 0.00
59.00 2.98 0.85 0.00
61.00 2.98 0.85 0.00
63.00 2.98 0.85 0.00
65.00 2.98 0.85 0.00
67.00 2.98 0.85 0.00
69.00 2.98 0.85 0.00
71.00 2.98 0.85 0.00
73.00 2.98 0.85 0.00
75.00 2.98 0.85 0.00
77.00 2.98 0.85 0.00
79.00 2.98 0.85 0.00
81.00 2.98 0.85 0.00
83.00 2.98 0.85 0.00
85.00 2.98 0.85 0.00
87.00 2.98 0.85 0.00
89.00 2.98 0.85 0.00
91.00 2.98 0.85 0.00
93.00 2.98 0.85 0.00
95.00 2.98 0.85 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 22HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Summary for Pond SCM#1: SCM #1 ADS Chambers
Inflow Area = 8.670 ac, 0.00% Impervious, Inflow Depth = 2.53" for 1 Year event
Inflow = 35.98 cfs @ 11.95 hrs, Volume= 1.830 af
Outflow = 0.97 cfs @ 14.02 hrs, Volume= 1.830 af, Atten= 97%, Lag= 123.7 min
Discarded = 0.43 cfs @ 14.02 hrs, Volume= 1.477 af
Primary = 0.54 cfs @ 14.02 hrs, Volume= 0.353 af
Secondary = 0.00 cfs @ 1.00 hrs, Volume= 0.000 af
Routing by Stor-Ind method, Time Span= 1.00-96.00 hrs, dt= 0.04 hrs
Peak Elev= 916.04' @ 14.02 hrs Surf.Area= 1.110 ac Storage= 1.174 af
Plug-Flow detention time= 957.3 min calculated for 1.829 af (100% of inflow)
Center-of-Mass det. time= 958.0 min ( 1,729.7 - 771.7 )
Volume Invert Avail.Storage Storage Description
#1A 914.50' 0.966 af 277.00'W x 174.50'L x 3.50'H Field A
3.884 af Overall - 1.468 af Embedded = 2.416 af x 40.0% Voids
#2A 915.00' 1.468 af ADS_StormTech SC-740 +Cap x 1392 Inside #1
Effective Size= 44.6"W x 30.0"H => 6.45 sf x 7.12'L = 45.9 cf
Overall Size= 51.0"W x 30.0"H x 7.56'L with 0.44' Overlap
58 Rows of 24 Chambers
2.434 af Total Available Storage
Storage Group A created with Chamber Wizard
Device Routing Invert Outlet Devices
#1 Discarded 914.50'0.190 in/hr Exfiltration over Surface area
Conductivity to Groundwater Elevation = 913.00'
#2 Primary 913.20'18.0" Round Culvert
L= 20.0' RCP, groove end w/headwall, Ke= 0.200
Inlet / Outlet Invert= 913.20' / 913.00' S= 0.0100 '/' Cc= 0.900
n= 0.013, Flow Area= 1.77 sf
#3 Device 2 915.60'8.0" Vert. Orifice/Grate C= 0.600
#4 Device 2 918.00'2.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s)
#5 Secondary 920.30'30.0' long (Profile 25) Broad-Crested Rectangular Weir
Head (feet) 0.49 0.98 1.48
Coef. (English) 3.51 3.59 3.57
Discarded OutFlow Max=0.43 cfs @ 14.02 hrs HW=916.04' (Free Discharge)
1=Exfiltration ( Controls 0.43 cfs)
Primary OutFlow Max=0.54 cfs @ 14.02 hrs HW=916.04' (Free Discharge)
2=Culvert (Passes 0.54 cfs of 14.04 cfs potential flow)
3=Orifice/Grate (Orifice Controls 0.54 cfs @ 2.25 fps)
4=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs)
Secondary OutFlow Max=0.00 cfs @ 1.00 hrs HW=914.50' (Free Discharge)
5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs)
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 23HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers - Chamber Wizard Field A
Chamber Model = ADS_StormTech SC-740 +Cap (ADS StormTech® SC-740 with cap length)
Effective Size= 44.6"W x 30.0"H => 6.45 sf x 7.12'L = 45.9 cf
Overall Size= 51.0"W x 30.0"H x 7.56'L with 0.44' Overlap
51.0" Wide + 6.0" Spacing = 57.0" C-C Row Spacing
24 Chambers/Row x 7.12' Long +0.81' Cap Length x 2 = 172.50' Row Length +12.0" End Stone x 2 =
174.50' Base Length
58 Rows x 51.0" Wide + 6.0" Spacing x 57 + 12.0" Side Stone x 2 = 277.00' Base Width
6.0" Base + 30.0" Chamber Height + 6.0" Cover = 3.50' Field Height
1,392 Chambers x 45.9 cf = 63,948.5 cf Chamber Storage
169,174.5 cf Field - 63,948.5 cf Chambers = 105,226.0 cf Stone x 40.0% Voids = 42,090.4 cf Stone
Storage
Chamber Storage + Stone Storage = 106,038.9 cf = 2.434 af
Overall Storage Efficiency = 62.7%
Overall System Size = 174.50' x 277.00' x 3.50'
1,392 Chambers
6,265.7 cy Field
3,897.3 cy Stone
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 24HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Inflow
Outflow
Discarded
Primary
Secondary
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Inflow Area=8.670 ac
Peak Elev=916.04'
Storage=1.174 af
35.98 cfs
0.97 cfs
0.43 cfs
0.54 cfs
0.00 cfs
Pond SCM#1: SCM #1 ADS Chambers
Total
Discarded
Primary
Secondary
Stage-Discharge
Discharge (cfs)
2220181614121086420Elevation (feet)920
919
918
917
916
915
Exfiltration
Orifice/Grate
Sharp-Crested Rectangular Weir
Broad-Crested Rectangular Weir
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 25HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Surface
Storage
Stage-Area-Storage
Storage (acre-feet)
210
Surface/Horizontal/Wetted Area (acres)
10
Elevation (feet)920
919
918
917
916
915
Field A
ADS_StormTech SC-740 +Cap
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 26HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Pond SCM#1: SCM #1 ADS Chambers
Time
(hours)
Inflow
(cfs)
Storage
(acre-feet)
Elevation
(feet)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
1.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
3.00 0.03 0.000 914.50 0.00 0.00 0.00 0.00
5.00 0.15 0.009 914.52 0.07 0.07 0.00 0.00
7.00 0.29 0.023 914.55 0.19 0.19 0.00 0.00
9.00 0.57 0.051 914.61 0.23 0.23 0.00 0.00
11.00 1.49 0.153 914.84 0.26 0.26 0.00 0.00
13.00 1.65 1.148 916.01 0.91 0.43 0.48 0.00
15.00 0.78 1.166 916.03 0.95 0.43 0.52 0.00
17.00 0.53 1.120 915.97 0.84 0.42 0.42 0.00
19.00 0.40 1.068 915.91 0.72 0.41 0.31 0.00
21.00 0.32 1.015 915.86 0.62 0.40 0.21 0.00
23.00 0.30 0.971 915.81 0.54 0.40 0.14 0.00
25.00 0.00 0.913 915.74 0.46 0.39 0.07 0.00
27.00 0.00 0.843 915.66 0.39 0.38 0.01 0.00
29.00 0.00 0.781 915.60 0.37 0.37 0.00 0.00
31.00 0.00 0.721 915.53 0.36 0.36 0.00 0.00
33.00 0.00 0.662 915.47 0.35 0.35 0.00 0.00
35.00 0.00 0.605 915.41 0.34 0.34 0.00 0.00
37.00 0.00 0.550 915.35 0.33 0.33 0.00 0.00
39.00 0.00 0.495 915.29 0.32 0.32 0.00 0.00
41.00 0.00 0.442 915.23 0.32 0.32 0.00 0.00
43.00 0.00 0.391 915.18 0.31 0.31 0.00 0.00
45.00 0.00 0.340 915.12 0.30 0.30 0.00 0.00
47.00 0.00 0.291 915.07 0.29 0.29 0.00 0.00
49.00 0.00 0.243 915.02 0.29 0.29 0.00 0.00
51.00 0.00 0.197 914.94 0.28 0.28 0.00 0.00
53.00 0.00 0.152 914.84 0.26 0.26 0.00 0.00
55.00 0.00 0.110 914.75 0.25 0.25 0.00 0.00
57.00 0.00 0.070 914.66 0.24 0.24 0.00 0.00
59.00 0.00 0.032 914.57 0.22 0.22 0.00 0.00
61.00 0.00 0.008 914.52 0.07 0.07 0.00 0.00
63.00 0.00 0.002 914.50 0.02 0.02 0.00 0.00
65.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
67.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
69.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
71.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
73.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
75.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
77.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
79.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
81.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
83.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
85.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
87.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
89.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
91.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
93.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
95.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 27HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Stage-Discharge for Pond SCM#1: SCM #1 ADS Chambers
Elevation
(feet)
Discharge
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
914.50 0.00 0.00 0.00 0.00
914.70 0.24 0.24 0.00 0.00
914.90 0.27 0.27 0.00 0.00
915.10 0.30 0.30 0.00 0.00
915.30 0.33 0.33 0.00 0.00
915.50 0.35 0.35 0.00 0.00
915.70 0.42 0.38 0.04 0.00
915.90 0.70 0.41 0.28 0.00
916.10 1.12 0.44 0.68 0.00
916.30 1.49 0.47 1.02 0.00
916.50 1.76 0.50 1.27 0.00
916.70 2.00 0.52 1.47 0.00
916.90 2.21 0.55 1.65 0.00
917.10 2.40 0.58 1.82 0.00
917.30 2.57 0.61 1.96 0.00
917.50 2.74 0.64 2.10 0.00
917.70 2.90 0.67 2.23 0.00
917.90 3.05 0.69 2.36 0.00
918.10 3.40 0.72 2.68 0.00
918.30 4.38 0.75 3.63 0.00
918.50 5.67 0.78 4.89 0.00
918.70 7.17 0.81 6.36 0.00
918.90 8.81 0.84 7.98 0.00
919.10 10.57 0.86 9.71 0.00
919.30 12.41 0.89 11.52 0.00
919.50 14.31 0.92 13.39 0.00
919.70 16.24 0.95 15.29 0.00
919.90 18.20 0.98 17.22 0.00
920.10 20.16 1.01 19.15 0.00
920.30 22.11 1.03 21.08 0.00
Type II 24-hr 1 Year Rainfall=2.98"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 28HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Stage-Area-Storage for Pond SCM#1: SCM #1 ADS Chambers
Elevation
(feet)
Surface
(acres)
Storage
(acre-feet)
914.50 1.110 0.000
914.60 1.110 0.044
914.70 1.110 0.089
914.80 1.110 0.133
914.90 1.110 0.178
915.00 1.110 0.222
915.10 1.110 0.317
915.20 1.110 0.412
915.30 1.110 0.506
915.40 1.110 0.600
915.50 1.110 0.693
915.60 1.110 0.785
915.70 1.110 0.876
915.80 1.110 0.966
915.90 1.110 1.055
916.00 1.110 1.143
916.10 1.110 1.230
916.20 1.110 1.316
916.30 1.110 1.400
916.40 1.110 1.482
916.50 1.110 1.563
916.60 1.110 1.642
916.70 1.110 1.719
916.80 1.110 1.794
916.90 1.110 1.866
917.00 1.110 1.935
917.10 1.110 2.001
917.20 1.110 2.063
917.30 1.110 2.117
917.40 1.110 2.166
917.50 1.110 2.212
917.60 1.110 2.257
917.70 1.110 2.301
917.80 1.110 2.346
917.90 1.110 2.390
918.00 1.110 2.434
918.10 1.110 2.434
918.20 1.110 2.434
918.30 1.110 2.434
918.40 1.110 2.434
918.50 1.110 2.434
918.60 1.110 2.434
918.70 1.110 2.434
918.80 1.110 2.434
918.90 1.110 2.434
919.00 1.110 2.434
919.10 1.110 2.434
919.20 1.110 2.434
919.30 1.110 2.434
919.40 1.110 2.434
919.50 1.110 2.434
919.60 1.110 2.434
Elevation
(feet)
Surface
(acres)
Storage
(acre-feet)
919.70 1.110 2.434
919.80 1.110 2.434
919.90 1.110 2.434
920.00 1.110 2.434
920.10 1.110 2.434
920.20 1.110 2.434
920.30 1.110 2.434
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 29HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 1S: EX-DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)2
1
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=1.999 ac
Runoff Volume=0.220 af
Runoff Depth=1.32"
Flow Length=351'
Tc=25.2 min
CN=74
2.46 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 30HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 1S: EX-DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.01 0.01
13.00 2.79 0.78 0.40
15.00 3.09 0.97 0.15
17.00 3.26 1.08 0.10
19.00 3.39 1.17 0.08
21.00 3.49 1.23 0.06
23.00 3.58 1.29 0.06
25.00 3.62 1.32 0.00
27.00 3.62 1.32 0.00
29.00 3.62 1.32 0.00
31.00 3.62 1.32 0.00
33.00 3.62 1.32 0.00
35.00 3.62 1.32 0.00
37.00 3.62 1.32 0.00
39.00 3.62 1.32 0.00
41.00 3.62 1.32 0.00
43.00 3.62 1.32 0.00
45.00 3.62 1.32 0.00
47.00 3.62 1.32 0.00
49.00 3.62 1.32 0.00
51.00 3.62 1.32 0.00
53.00 3.62 1.32 0.00
55.00 3.62 1.32 0.00
57.00 3.62 1.32 0.00
59.00 3.62 1.32 0.00
61.00 3.62 1.32 0.00
63.00 3.62 1.32 0.00
65.00 3.62 1.32 0.00
67.00 3.62 1.32 0.00
69.00 3.62 1.32 0.00
71.00 3.62 1.32 0.00
73.00 3.62 1.32 0.00
75.00 3.62 1.32 0.00
77.00 3.62 1.32 0.00
79.00 3.62 1.32 0.00
81.00 3.62 1.32 0.00
83.00 3.62 1.32 0.00
85.00 3.62 1.32 0.00
87.00 3.62 1.32 0.00
89.00 3.62 1.32 0.00
91.00 3.62 1.32 0.00
93.00 3.62 1.32 0.00
95.00 3.62 1.32 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 31HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 2S: EX-DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)8
7
6
5
4
3
2
1
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=6.588 ac
Runoff Volume=0.659 af
Runoff Depth=1.20"
Flow Length=503'
Tc=23.5 min
CN=72
7.54 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 32HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: EX-DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.00 0.01
13.00 2.79 0.69 1.17
15.00 3.09 0.86 0.47
17.00 3.26 0.97 0.32
19.00 3.39 1.05 0.25
21.00 3.49 1.12 0.20
23.00 3.58 1.17 0.19
25.00 3.62 1.20 0.00
27.00 3.62 1.20 0.00
29.00 3.62 1.20 0.00
31.00 3.62 1.20 0.00
33.00 3.62 1.20 0.00
35.00 3.62 1.20 0.00
37.00 3.62 1.20 0.00
39.00 3.62 1.20 0.00
41.00 3.62 1.20 0.00
43.00 3.62 1.20 0.00
45.00 3.62 1.20 0.00
47.00 3.62 1.20 0.00
49.00 3.62 1.20 0.00
51.00 3.62 1.20 0.00
53.00 3.62 1.20 0.00
55.00 3.62 1.20 0.00
57.00 3.62 1.20 0.00
59.00 3.62 1.20 0.00
61.00 3.62 1.20 0.00
63.00 3.62 1.20 0.00
65.00 3.62 1.20 0.00
67.00 3.62 1.20 0.00
69.00 3.62 1.20 0.00
71.00 3.62 1.20 0.00
73.00 3.62 1.20 0.00
75.00 3.62 1.20 0.00
77.00 3.62 1.20 0.00
79.00 3.62 1.20 0.00
81.00 3.62 1.20 0.00
83.00 3.62 1.20 0.00
85.00 3.62 1.20 0.00
87.00 3.62 1.20 0.00
89.00 3.62 1.20 0.00
91.00 3.62 1.20 0.00
93.00 3.62 1.20 0.00
95.00 3.62 1.20 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 33HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 3S: EX-DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)0.18
0.17
0.16
0.15
0.14
0.13
0.12
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=0.531 ac
Runoff Volume=0.017 af
Runoff Depth=0.39"
Flow Length=254'
Slope=0.0560 '/'
Tc=12.9 min
CN=55
0.16 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 34HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 3S: EX-DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.00 0.00
13.00 2.79 0.14 0.03
15.00 3.09 0.22 0.02
17.00 3.26 0.27 0.01
19.00 3.39 0.31 0.01
21.00 3.49 0.34 0.01
23.00 3.58 0.37 0.01
25.00 3.62 0.39 0.00
27.00 3.62 0.39 0.00
29.00 3.62 0.39 0.00
31.00 3.62 0.39 0.00
33.00 3.62 0.39 0.00
35.00 3.62 0.39 0.00
37.00 3.62 0.39 0.00
39.00 3.62 0.39 0.00
41.00 3.62 0.39 0.00
43.00 3.62 0.39 0.00
45.00 3.62 0.39 0.00
47.00 3.62 0.39 0.00
49.00 3.62 0.39 0.00
51.00 3.62 0.39 0.00
53.00 3.62 0.39 0.00
55.00 3.62 0.39 0.00
57.00 3.62 0.39 0.00
59.00 3.62 0.39 0.00
61.00 3.62 0.39 0.00
63.00 3.62 0.39 0.00
65.00 3.62 0.39 0.00
67.00 3.62 0.39 0.00
69.00 3.62 0.39 0.00
71.00 3.62 0.39 0.00
73.00 3.62 0.39 0.00
75.00 3.62 0.39 0.00
77.00 3.62 0.39 0.00
79.00 3.62 0.39 0.00
81.00 3.62 0.39 0.00
83.00 3.62 0.39 0.00
85.00 3.62 0.39 0.00
87.00 3.62 0.39 0.00
89.00 3.62 0.39 0.00
91.00 3.62 0.39 0.00
93.00 3.62 0.39 0.00
95.00 3.62 0.39 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 35HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 4S: EX-DA-4
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)1
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=0.913 ac
Runoff Volume=0.062 af
Runoff Depth=0.82"
Tc=5.0 min
CN=65
1.28 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 36HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 4S: EX-DA-4
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.00 0.00
13.00 2.79 0.42 0.09
15.00 3.09 0.55 0.05
17.00 3.26 0.63 0.03
19.00 3.39 0.70 0.03
21.00 3.49 0.75 0.02
23.00 3.58 0.79 0.02
25.00 3.62 0.82 0.00
27.00 3.62 0.82 0.00
29.00 3.62 0.82 0.00
31.00 3.62 0.82 0.00
33.00 3.62 0.82 0.00
35.00 3.62 0.82 0.00
37.00 3.62 0.82 0.00
39.00 3.62 0.82 0.00
41.00 3.62 0.82 0.00
43.00 3.62 0.82 0.00
45.00 3.62 0.82 0.00
47.00 3.62 0.82 0.00
49.00 3.62 0.82 0.00
51.00 3.62 0.82 0.00
53.00 3.62 0.82 0.00
55.00 3.62 0.82 0.00
57.00 3.62 0.82 0.00
59.00 3.62 0.82 0.00
61.00 3.62 0.82 0.00
63.00 3.62 0.82 0.00
65.00 3.62 0.82 0.00
67.00 3.62 0.82 0.00
69.00 3.62 0.82 0.00
71.00 3.62 0.82 0.00
73.00 3.62 0.82 0.00
75.00 3.62 0.82 0.00
77.00 3.62 0.82 0.00
79.00 3.62 0.82 0.00
81.00 3.62 0.82 0.00
83.00 3.62 0.82 0.00
85.00 3.62 0.82 0.00
87.00 3.62 0.82 0.00
89.00 3.62 0.82 0.00
91.00 3.62 0.82 0.00
93.00 3.62 0.82 0.00
95.00 3.62 0.82 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 37HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 5S: EX-DA-5
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)9
8
7
6
5
4
3
2
1
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=6.223 ac
Runoff Volume=0.592 af
Runoff Depth=1.14"
Flow Length=535'
Tc=17.0 min
CN=71
8.16 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 38HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: EX-DA-5
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.00 0.00
13.00 2.79 0.65 0.92
15.00 3.09 0.81 0.42
17.00 3.26 0.92 0.29
19.00 3.39 1.00 0.23
21.00 3.49 1.06 0.18
23.00 3.58 1.11 0.17
25.00 3.62 1.14 0.00
27.00 3.62 1.14 0.00
29.00 3.62 1.14 0.00
31.00 3.62 1.14 0.00
33.00 3.62 1.14 0.00
35.00 3.62 1.14 0.00
37.00 3.62 1.14 0.00
39.00 3.62 1.14 0.00
41.00 3.62 1.14 0.00
43.00 3.62 1.14 0.00
45.00 3.62 1.14 0.00
47.00 3.62 1.14 0.00
49.00 3.62 1.14 0.00
51.00 3.62 1.14 0.00
53.00 3.62 1.14 0.00
55.00 3.62 1.14 0.00
57.00 3.62 1.14 0.00
59.00 3.62 1.14 0.00
61.00 3.62 1.14 0.00
63.00 3.62 1.14 0.00
65.00 3.62 1.14 0.00
67.00 3.62 1.14 0.00
69.00 3.62 1.14 0.00
71.00 3.62 1.14 0.00
73.00 3.62 1.14 0.00
75.00 3.62 1.14 0.00
77.00 3.62 1.14 0.00
79.00 3.62 1.14 0.00
81.00 3.62 1.14 0.00
83.00 3.62 1.14 0.00
85.00 3.62 1.14 0.00
87.00 3.62 1.14 0.00
89.00 3.62 1.14 0.00
91.00 3.62 1.14 0.00
93.00 3.62 1.14 0.00
95.00 3.62 1.14 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 39HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 6S: Post DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)50
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=400,749 sf
Runoff Volume=2.264 af
Runoff Depth=2.95"
Tc=5.0 min
CN=94
45.34 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 40HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 6S: Post DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.01 0.13
7.00 0.36 0.06 0.30
9.00 0.53 0.16 0.65
11.00 0.85 0.38 1.79
13.00 2.79 2.15 2.10
15.00 3.09 2.44 0.99
17.00 3.26 2.61 0.68
19.00 3.39 2.73 0.51
21.00 3.49 2.83 0.41
23.00 3.58 2.91 0.38
25.00 3.62 2.95 0.00
27.00 3.62 2.95 0.00
29.00 3.62 2.95 0.00
31.00 3.62 2.95 0.00
33.00 3.62 2.95 0.00
35.00 3.62 2.95 0.00
37.00 3.62 2.95 0.00
39.00 3.62 2.95 0.00
41.00 3.62 2.95 0.00
43.00 3.62 2.95 0.00
45.00 3.62 2.95 0.00
47.00 3.62 2.95 0.00
49.00 3.62 2.95 0.00
51.00 3.62 2.95 0.00
53.00 3.62 2.95 0.00
55.00 3.62 2.95 0.00
57.00 3.62 2.95 0.00
59.00 3.62 2.95 0.00
61.00 3.62 2.95 0.00
63.00 3.62 2.95 0.00
65.00 3.62 2.95 0.00
67.00 3.62 2.95 0.00
69.00 3.62 2.95 0.00
71.00 3.62 2.95 0.00
73.00 3.62 2.95 0.00
75.00 3.62 2.95 0.00
77.00 3.62 2.95 0.00
79.00 3.62 2.95 0.00
81.00 3.62 2.95 0.00
83.00 3.62 2.95 0.00
85.00 3.62 2.95 0.00
87.00 3.62 2.95 0.00
89.00 3.62 2.95 0.00
91.00 3.62 2.95 0.00
93.00 3.62 2.95 0.00
95.00 3.62 2.95 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 41HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 7S: Post DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=285,709 sf
Runoff Volume=1.300 af
Runoff Depth=2.38"
Tc=5.0 min
CN=88
27.67 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 42HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 7S: Post DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.01 0.05
9.00 0.53 0.04 0.21
11.00 0.85 0.17 0.82
13.00 2.79 1.64 1.36
15.00 3.09 1.90 0.65
17.00 3.26 2.05 0.45
19.00 3.39 2.17 0.34
21.00 3.49 2.26 0.27
23.00 3.58 2.34 0.25
25.00 3.62 2.38 0.00
27.00 3.62 2.38 0.00
29.00 3.62 2.38 0.00
31.00 3.62 2.38 0.00
33.00 3.62 2.38 0.00
35.00 3.62 2.38 0.00
37.00 3.62 2.38 0.00
39.00 3.62 2.38 0.00
41.00 3.62 2.38 0.00
43.00 3.62 2.38 0.00
45.00 3.62 2.38 0.00
47.00 3.62 2.38 0.00
49.00 3.62 2.38 0.00
51.00 3.62 2.38 0.00
53.00 3.62 2.38 0.00
55.00 3.62 2.38 0.00
57.00 3.62 2.38 0.00
59.00 3.62 2.38 0.00
61.00 3.62 2.38 0.00
63.00 3.62 2.38 0.00
65.00 3.62 2.38 0.00
67.00 3.62 2.38 0.00
69.00 3.62 2.38 0.00
71.00 3.62 2.38 0.00
73.00 3.62 2.38 0.00
75.00 3.62 2.38 0.00
77.00 3.62 2.38 0.00
79.00 3.62 2.38 0.00
81.00 3.62 2.38 0.00
83.00 3.62 2.38 0.00
85.00 3.62 2.38 0.00
87.00 3.62 2.38 0.00
89.00 3.62 2.38 0.00
91.00 3.62 2.38 0.00
93.00 3.62 2.38 0.00
95.00 3.62 2.38 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 43HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 8S: Post DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)1
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=21,564 sf
Runoff Volume=0.052 af
Runoff Depth=1.26"
Tc=5.0 min
CN=73
1.14 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 44HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 8S: Post DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.00 0.01
13.00 2.79 0.73 0.07
15.00 3.09 0.91 0.03
17.00 3.26 1.02 0.02
19.00 3.39 1.11 0.02
21.00 3.49 1.17 0.02
23.00 3.58 1.23 0.01
25.00 3.62 1.26 0.00
27.00 3.62 1.26 0.00
29.00 3.62 1.26 0.00
31.00 3.62 1.26 0.00
33.00 3.62 1.26 0.00
35.00 3.62 1.26 0.00
37.00 3.62 1.26 0.00
39.00 3.62 1.26 0.00
41.00 3.62 1.26 0.00
43.00 3.62 1.26 0.00
45.00 3.62 1.26 0.00
47.00 3.62 1.26 0.00
49.00 3.62 1.26 0.00
51.00 3.62 1.26 0.00
53.00 3.62 1.26 0.00
55.00 3.62 1.26 0.00
57.00 3.62 1.26 0.00
59.00 3.62 1.26 0.00
61.00 3.62 1.26 0.00
63.00 3.62 1.26 0.00
65.00 3.62 1.26 0.00
67.00 3.62 1.26 0.00
69.00 3.62 1.26 0.00
71.00 3.62 1.26 0.00
73.00 3.62 1.26 0.00
75.00 3.62 1.26 0.00
77.00 3.62 1.26 0.00
79.00 3.62 1.26 0.00
81.00 3.62 1.26 0.00
83.00 3.62 1.26 0.00
85.00 3.62 1.26 0.00
87.00 3.62 1.26 0.00
89.00 3.62 1.26 0.00
91.00 3.62 1.26 0.00
93.00 3.62 1.26 0.00
95.00 3.62 1.26 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 45HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment DEV-1: Post DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=8.670 ac
Runoff Volume=2.286 af
Runoff Depth=3.16"
Tc=5.0 min
CN=96
44.31 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 46HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment DEV-1: Post DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.07
5.00 0.23 0.04 0.22
7.00 0.36 0.11 0.40
9.00 0.53 0.23 0.75
11.00 0.85 0.50 1.90
13.00 2.79 2.35 2.02
15.00 3.09 2.64 0.95
17.00 3.26 2.81 0.65
19.00 3.39 2.94 0.49
21.00 3.49 3.04 0.39
23.00 3.58 3.12 0.36
25.00 3.62 3.16 0.00
27.00 3.62 3.16 0.00
29.00 3.62 3.16 0.00
31.00 3.62 3.16 0.00
33.00 3.62 3.16 0.00
35.00 3.62 3.16 0.00
37.00 3.62 3.16 0.00
39.00 3.62 3.16 0.00
41.00 3.62 3.16 0.00
43.00 3.62 3.16 0.00
45.00 3.62 3.16 0.00
47.00 3.62 3.16 0.00
49.00 3.62 3.16 0.00
51.00 3.62 3.16 0.00
53.00 3.62 3.16 0.00
55.00 3.62 3.16 0.00
57.00 3.62 3.16 0.00
59.00 3.62 3.16 0.00
61.00 3.62 3.16 0.00
63.00 3.62 3.16 0.00
65.00 3.62 3.16 0.00
67.00 3.62 3.16 0.00
69.00 3.62 3.16 0.00
71.00 3.62 3.16 0.00
73.00 3.62 3.16 0.00
75.00 3.62 3.16 0.00
77.00 3.62 3.16 0.00
79.00 3.62 3.16 0.00
81.00 3.62 3.16 0.00
83.00 3.62 3.16 0.00
85.00 3.62 3.16 0.00
87.00 3.62 3.16 0.00
89.00 3.62 3.16 0.00
91.00 3.62 3.16 0.00
93.00 3.62 3.16 0.00
95.00 3.62 3.16 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 47HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)11
10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
2 Year Rainfall=3.62"
Runoff Area=8.670 ac
Runoff Volume=0.911 af
Runoff Depth=1.26"
Flow Length=620'
Tc=24.5 min
CN=73
10.25 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 48HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment PRE-1: Pre Dev DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.04 0.00 0.00
3.00 0.12 0.00 0.00
5.00 0.23 0.00 0.00
7.00 0.36 0.00 0.00
9.00 0.53 0.00 0.00
11.00 0.85 0.00 0.03
13.00 2.79 0.73 1.64
15.00 3.09 0.91 0.64
17.00 3.26 1.02 0.44
19.00 3.39 1.11 0.34
21.00 3.49 1.17 0.27
23.00 3.58 1.23 0.25
25.00 3.62 1.26 0.00
27.00 3.62 1.26 0.00
29.00 3.62 1.26 0.00
31.00 3.62 1.26 0.00
33.00 3.62 1.26 0.00
35.00 3.62 1.26 0.00
37.00 3.62 1.26 0.00
39.00 3.62 1.26 0.00
41.00 3.62 1.26 0.00
43.00 3.62 1.26 0.00
45.00 3.62 1.26 0.00
47.00 3.62 1.26 0.00
49.00 3.62 1.26 0.00
51.00 3.62 1.26 0.00
53.00 3.62 1.26 0.00
55.00 3.62 1.26 0.00
57.00 3.62 1.26 0.00
59.00 3.62 1.26 0.00
61.00 3.62 1.26 0.00
63.00 3.62 1.26 0.00
65.00 3.62 1.26 0.00
67.00 3.62 1.26 0.00
69.00 3.62 1.26 0.00
71.00 3.62 1.26 0.00
73.00 3.62 1.26 0.00
75.00 3.62 1.26 0.00
77.00 3.62 1.26 0.00
79.00 3.62 1.26 0.00
81.00 3.62 1.26 0.00
83.00 3.62 1.26 0.00
85.00 3.62 1.26 0.00
87.00 3.62 1.26 0.00
89.00 3.62 1.26 0.00
91.00 3.62 1.26 0.00
93.00 3.62 1.26 0.00
95.00 3.62 1.26 0.00
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 49HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Inflow
Outflow
Discarded
Primary
Secondary
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)45
40
35
30
25
20
15
10
5
0
Inflow Area=8.670 ac
Peak Elev=916.34'
Storage=1.430 af
44.31 cfs
1.54 cfs
0.47 cfs
1.07 cfs
0.00 cfs
Type II 24-hr 2 Year Rainfall=3.62"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 50HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Pond SCM#1: SCM #1 ADS Chambers
Time
(hours)
Inflow
(cfs)
Storage
(acre-feet)
Elevation
(feet)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
1.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
3.00 0.07 0.002 914.50 0.02 0.02 0.00 0.00
5.00 0.22 0.014 914.53 0.12 0.12 0.00 0.00
7.00 0.40 0.034 914.58 0.22 0.22 0.00 0.00
9.00 0.75 0.083 914.69 0.24 0.24 0.00 0.00
11.00 1.90 0.224 915.00 0.28 0.28 0.00 0.00
13.00 2.02 1.421 916.33 1.52 0.47 1.05 0.00
15.00 0.95 1.386 916.28 1.46 0.47 1.00 0.00
17.00 0.65 1.286 916.17 1.26 0.45 0.81 0.00
19.00 0.49 1.193 916.06 1.02 0.43 0.59 0.00
21.00 0.39 1.112 915.96 0.82 0.42 0.40 0.00
23.00 0.36 1.050 915.89 0.68 0.41 0.27 0.00
25.00 0.00 0.978 915.81 0.55 0.40 0.15 0.00
27.00 0.00 0.897 915.72 0.44 0.39 0.05 0.00
29.00 0.00 0.829 915.65 0.39 0.38 0.01 0.00
31.00 0.00 0.768 915.58 0.37 0.37 0.00 0.00
33.00 0.00 0.708 915.52 0.36 0.36 0.00 0.00
35.00 0.00 0.650 915.45 0.35 0.35 0.00 0.00
37.00 0.00 0.593 915.39 0.34 0.34 0.00 0.00
39.00 0.00 0.537 915.33 0.33 0.33 0.00 0.00
41.00 0.00 0.483 915.28 0.32 0.32 0.00 0.00
43.00 0.00 0.431 915.22 0.31 0.31 0.00 0.00
45.00 0.00 0.379 915.17 0.31 0.31 0.00 0.00
47.00 0.00 0.329 915.11 0.30 0.30 0.00 0.00
49.00 0.00 0.280 915.06 0.29 0.29 0.00 0.00
51.00 0.00 0.233 915.01 0.29 0.29 0.00 0.00
53.00 0.00 0.187 914.92 0.27 0.27 0.00 0.00
55.00 0.00 0.143 914.82 0.26 0.26 0.00 0.00
57.00 0.00 0.101 914.73 0.24 0.24 0.00 0.00
59.00 0.00 0.062 914.64 0.23 0.23 0.00 0.00
61.00 0.00 0.024 914.56 0.21 0.21 0.00 0.00
63.00 0.00 0.006 914.51 0.05 0.05 0.00 0.00
65.00 0.00 0.001 914.50 0.01 0.01 0.00 0.00
67.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
69.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
71.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
73.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
75.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
77.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
79.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
81.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
83.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
85.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
87.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
89.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
91.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
93.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
95.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 51HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 1S: EX-DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)5
4
3
2
1
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=1.999 ac
Runoff Volume=0.441 af
Runoff Depth=2.65"
Flow Length=351'
Tc=25.2 min
CN=74
5.09 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 52HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 1S: EX-DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.08 0.13
13.00 4.13 1.69 0.74
15.00 4.57 2.02 0.27
17.00 4.82 2.22 0.18
19.00 5.02 2.38 0.14
21.00 5.16 2.49 0.11
23.00 5.29 2.60 0.10
25.00 5.35 2.65 0.00
27.00 5.35 2.65 0.00
29.00 5.35 2.65 0.00
31.00 5.35 2.65 0.00
33.00 5.35 2.65 0.00
35.00 5.35 2.65 0.00
37.00 5.35 2.65 0.00
39.00 5.35 2.65 0.00
41.00 5.35 2.65 0.00
43.00 5.35 2.65 0.00
45.00 5.35 2.65 0.00
47.00 5.35 2.65 0.00
49.00 5.35 2.65 0.00
51.00 5.35 2.65 0.00
53.00 5.35 2.65 0.00
55.00 5.35 2.65 0.00
57.00 5.35 2.65 0.00
59.00 5.35 2.65 0.00
61.00 5.35 2.65 0.00
63.00 5.35 2.65 0.00
65.00 5.35 2.65 0.00
67.00 5.35 2.65 0.00
69.00 5.35 2.65 0.00
71.00 5.35 2.65 0.00
73.00 5.35 2.65 0.00
75.00 5.35 2.65 0.00
77.00 5.35 2.65 0.00
79.00 5.35 2.65 0.00
81.00 5.35 2.65 0.00
83.00 5.35 2.65 0.00
85.00 5.35 2.65 0.00
87.00 5.35 2.65 0.00
89.00 5.35 2.65 0.00
91.00 5.35 2.65 0.00
93.00 5.35 2.65 0.00
95.00 5.35 2.65 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 53HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 2S: EX-DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=6.588 ac
Runoff Volume=1.356 af
Runoff Depth=2.47"
Flow Length=503'
Tc=23.5 min
CN=72
16.28 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 54HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: EX-DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.05 0.33
13.00 4.13 1.55 2.20
15.00 4.57 1.87 0.86
17.00 4.82 2.06 0.58
19.00 5.02 2.21 0.45
21.00 5.16 2.32 0.35
23.00 5.29 2.42 0.33
25.00 5.35 2.47 0.00
27.00 5.35 2.47 0.00
29.00 5.35 2.47 0.00
31.00 5.35 2.47 0.00
33.00 5.35 2.47 0.00
35.00 5.35 2.47 0.00
37.00 5.35 2.47 0.00
39.00 5.35 2.47 0.00
41.00 5.35 2.47 0.00
43.00 5.35 2.47 0.00
45.00 5.35 2.47 0.00
47.00 5.35 2.47 0.00
49.00 5.35 2.47 0.00
51.00 5.35 2.47 0.00
53.00 5.35 2.47 0.00
55.00 5.35 2.47 0.00
57.00 5.35 2.47 0.00
59.00 5.35 2.47 0.00
61.00 5.35 2.47 0.00
63.00 5.35 2.47 0.00
65.00 5.35 2.47 0.00
67.00 5.35 2.47 0.00
69.00 5.35 2.47 0.00
71.00 5.35 2.47 0.00
73.00 5.35 2.47 0.00
75.00 5.35 2.47 0.00
77.00 5.35 2.47 0.00
79.00 5.35 2.47 0.00
81.00 5.35 2.47 0.00
83.00 5.35 2.47 0.00
85.00 5.35 2.47 0.00
87.00 5.35 2.47 0.00
89.00 5.35 2.47 0.00
91.00 5.35 2.47 0.00
93.00 5.35 2.47 0.00
95.00 5.35 2.47 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 55HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 3S: EX-DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=0.531 ac
Runoff Volume=0.051 af
Runoff Depth=1.16"
Flow Length=254'
Slope=0.0560 '/'
Tc=12.9 min
CN=55
0.75 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 56HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 3S: EX-DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.00 0.00
13.00 4.13 0.58 0.08
15.00 4.57 0.77 0.04
17.00 4.82 0.89 0.03
19.00 5.02 0.99 0.02
21.00 5.16 1.06 0.02
23.00 5.29 1.13 0.02
25.00 5.35 1.16 0.00
27.00 5.35 1.16 0.00
29.00 5.35 1.16 0.00
31.00 5.35 1.16 0.00
33.00 5.35 1.16 0.00
35.00 5.35 1.16 0.00
37.00 5.35 1.16 0.00
39.00 5.35 1.16 0.00
41.00 5.35 1.16 0.00
43.00 5.35 1.16 0.00
45.00 5.35 1.16 0.00
47.00 5.35 1.16 0.00
49.00 5.35 1.16 0.00
51.00 5.35 1.16 0.00
53.00 5.35 1.16 0.00
55.00 5.35 1.16 0.00
57.00 5.35 1.16 0.00
59.00 5.35 1.16 0.00
61.00 5.35 1.16 0.00
63.00 5.35 1.16 0.00
65.00 5.35 1.16 0.00
67.00 5.35 1.16 0.00
69.00 5.35 1.16 0.00
71.00 5.35 1.16 0.00
73.00 5.35 1.16 0.00
75.00 5.35 1.16 0.00
77.00 5.35 1.16 0.00
79.00 5.35 1.16 0.00
81.00 5.35 1.16 0.00
83.00 5.35 1.16 0.00
85.00 5.35 1.16 0.00
87.00 5.35 1.16 0.00
89.00 5.35 1.16 0.00
91.00 5.35 1.16 0.00
93.00 5.35 1.16 0.00
95.00 5.35 1.16 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 57HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 4S: EX-DA-4
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)3
2
1
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=0.913 ac
Runoff Volume=0.144 af
Runoff Depth=1.89"
Tc=5.0 min
CN=65
3.15 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 58HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 4S: EX-DA-4
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.01 0.02
13.00 4.13 1.10 0.19
15.00 4.57 1.37 0.09
17.00 4.82 1.54 0.07
19.00 5.02 1.66 0.05
21.00 5.16 1.76 0.04
23.00 5.29 1.85 0.04
25.00 5.35 1.89 0.00
27.00 5.35 1.89 0.00
29.00 5.35 1.89 0.00
31.00 5.35 1.89 0.00
33.00 5.35 1.89 0.00
35.00 5.35 1.89 0.00
37.00 5.35 1.89 0.00
39.00 5.35 1.89 0.00
41.00 5.35 1.89 0.00
43.00 5.35 1.89 0.00
45.00 5.35 1.89 0.00
47.00 5.35 1.89 0.00
49.00 5.35 1.89 0.00
51.00 5.35 1.89 0.00
53.00 5.35 1.89 0.00
55.00 5.35 1.89 0.00
57.00 5.35 1.89 0.00
59.00 5.35 1.89 0.00
61.00 5.35 1.89 0.00
63.00 5.35 1.89 0.00
65.00 5.35 1.89 0.00
67.00 5.35 1.89 0.00
69.00 5.35 1.89 0.00
71.00 5.35 1.89 0.00
73.00 5.35 1.89 0.00
75.00 5.35 1.89 0.00
77.00 5.35 1.89 0.00
79.00 5.35 1.89 0.00
81.00 5.35 1.89 0.00
83.00 5.35 1.89 0.00
85.00 5.35 1.89 0.00
87.00 5.35 1.89 0.00
89.00 5.35 1.89 0.00
91.00 5.35 1.89 0.00
93.00 5.35 1.89 0.00
95.00 5.35 1.89 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 59HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 5S: EX-DA-5
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=6.223 ac
Runoff Volume=1.237 af
Runoff Depth=2.38"
Flow Length=535'
Tc=17.0 min
CN=71
17.85 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 60HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: EX-DA-5
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.04 0.31
13.00 4.13 1.48 1.74
15.00 4.57 1.79 0.77
17.00 4.82 1.98 0.53
19.00 5.02 2.13 0.41
21.00 5.16 2.24 0.32
23.00 5.29 2.34 0.30
25.00 5.35 2.38 0.00
27.00 5.35 2.38 0.00
29.00 5.35 2.38 0.00
31.00 5.35 2.38 0.00
33.00 5.35 2.38 0.00
35.00 5.35 2.38 0.00
37.00 5.35 2.38 0.00
39.00 5.35 2.38 0.00
41.00 5.35 2.38 0.00
43.00 5.35 2.38 0.00
45.00 5.35 2.38 0.00
47.00 5.35 2.38 0.00
49.00 5.35 2.38 0.00
51.00 5.35 2.38 0.00
53.00 5.35 2.38 0.00
55.00 5.35 2.38 0.00
57.00 5.35 2.38 0.00
59.00 5.35 2.38 0.00
61.00 5.35 2.38 0.00
63.00 5.35 2.38 0.00
65.00 5.35 2.38 0.00
67.00 5.35 2.38 0.00
69.00 5.35 2.38 0.00
71.00 5.35 2.38 0.00
73.00 5.35 2.38 0.00
75.00 5.35 2.38 0.00
77.00 5.35 2.38 0.00
79.00 5.35 2.38 0.00
81.00 5.35 2.38 0.00
83.00 5.35 2.38 0.00
85.00 5.35 2.38 0.00
87.00 5.35 2.38 0.00
89.00 5.35 2.38 0.00
91.00 5.35 2.38 0.00
93.00 5.35 2.38 0.00
95.00 5.35 2.38 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 61HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 6S: Post DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=400,749 sf
Runoff Volume=3.568 af
Runoff Depth=4.65"
Tc=5.0 min
CN=94
69.33 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 62HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 6S: Post DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.09
5.00 0.34 0.05 0.33
7.00 0.53 0.16 0.61
9.00 0.79 0.33 1.17
11.00 1.26 0.72 2.96
13.00 4.13 3.45 3.17
15.00 4.57 3.88 1.49
17.00 4.82 4.13 1.01
19.00 5.02 4.32 0.77
21.00 5.16 4.47 0.61
23.00 5.29 4.59 0.57
25.00 5.35 4.65 0.00
27.00 5.35 4.65 0.00
29.00 5.35 4.65 0.00
31.00 5.35 4.65 0.00
33.00 5.35 4.65 0.00
35.00 5.35 4.65 0.00
37.00 5.35 4.65 0.00
39.00 5.35 4.65 0.00
41.00 5.35 4.65 0.00
43.00 5.35 4.65 0.00
45.00 5.35 4.65 0.00
47.00 5.35 4.65 0.00
49.00 5.35 4.65 0.00
51.00 5.35 4.65 0.00
53.00 5.35 4.65 0.00
55.00 5.35 4.65 0.00
57.00 5.35 4.65 0.00
59.00 5.35 4.65 0.00
61.00 5.35 4.65 0.00
63.00 5.35 4.65 0.00
65.00 5.35 4.65 0.00
67.00 5.35 4.65 0.00
69.00 5.35 4.65 0.00
71.00 5.35 4.65 0.00
73.00 5.35 4.65 0.00
75.00 5.35 4.65 0.00
77.00 5.35 4.65 0.00
79.00 5.35 4.65 0.00
81.00 5.35 4.65 0.00
83.00 5.35 4.65 0.00
85.00 5.35 4.65 0.00
87.00 5.35 4.65 0.00
89.00 5.35 4.65 0.00
91.00 5.35 4.65 0.00
93.00 5.35 4.65 0.00
95.00 5.35 4.65 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 63HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 7S: Post DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)50
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=285,709 sf
Runoff Volume=2.188 af
Runoff Depth=4.00"
Tc=5.0 min
CN=88
45.17 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 64HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 7S: Post DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.04
7.00 0.53 0.04 0.20
9.00 0.79 0.14 0.51
11.00 1.26 0.41 1.60
13.00 4.13 2.85 2.14
15.00 4.57 3.26 1.02
17.00 4.82 3.50 0.69
19.00 5.02 3.69 0.53
21.00 5.16 3.82 0.42
23.00 5.29 3.94 0.39
25.00 5.35 4.00 0.00
27.00 5.35 4.00 0.00
29.00 5.35 4.00 0.00
31.00 5.35 4.00 0.00
33.00 5.35 4.00 0.00
35.00 5.35 4.00 0.00
37.00 5.35 4.00 0.00
39.00 5.35 4.00 0.00
41.00 5.35 4.00 0.00
43.00 5.35 4.00 0.00
45.00 5.35 4.00 0.00
47.00 5.35 4.00 0.00
49.00 5.35 4.00 0.00
51.00 5.35 4.00 0.00
53.00 5.35 4.00 0.00
55.00 5.35 4.00 0.00
57.00 5.35 4.00 0.00
59.00 5.35 4.00 0.00
61.00 5.35 4.00 0.00
63.00 5.35 4.00 0.00
65.00 5.35 4.00 0.00
67.00 5.35 4.00 0.00
69.00 5.35 4.00 0.00
71.00 5.35 4.00 0.00
73.00 5.35 4.00 0.00
75.00 5.35 4.00 0.00
77.00 5.35 4.00 0.00
79.00 5.35 4.00 0.00
81.00 5.35 4.00 0.00
83.00 5.35 4.00 0.00
85.00 5.35 4.00 0.00
87.00 5.35 4.00 0.00
89.00 5.35 4.00 0.00
91.00 5.35 4.00 0.00
93.00 5.35 4.00 0.00
95.00 5.35 4.00 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 65HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 8S: Post DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)2
1
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=21,564 sf
Runoff Volume=0.106 af
Runoff Depth=2.56"
Tc=5.0 min
CN=73
2.32 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 66HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 8S: Post DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.06 0.04
13.00 4.13 1.62 0.13
15.00 4.57 1.95 0.06
17.00 4.82 2.14 0.04
19.00 5.02 2.29 0.03
21.00 5.16 2.41 0.03
23.00 5.29 2.51 0.02
25.00 5.35 2.56 0.00
27.00 5.35 2.56 0.00
29.00 5.35 2.56 0.00
31.00 5.35 2.56 0.00
33.00 5.35 2.56 0.00
35.00 5.35 2.56 0.00
37.00 5.35 2.56 0.00
39.00 5.35 2.56 0.00
41.00 5.35 2.56 0.00
43.00 5.35 2.56 0.00
45.00 5.35 2.56 0.00
47.00 5.35 2.56 0.00
49.00 5.35 2.56 0.00
51.00 5.35 2.56 0.00
53.00 5.35 2.56 0.00
55.00 5.35 2.56 0.00
57.00 5.35 2.56 0.00
59.00 5.35 2.56 0.00
61.00 5.35 2.56 0.00
63.00 5.35 2.56 0.00
65.00 5.35 2.56 0.00
67.00 5.35 2.56 0.00
69.00 5.35 2.56 0.00
71.00 5.35 2.56 0.00
73.00 5.35 2.56 0.00
75.00 5.35 2.56 0.00
77.00 5.35 2.56 0.00
79.00 5.35 2.56 0.00
81.00 5.35 2.56 0.00
83.00 5.35 2.56 0.00
85.00 5.35 2.56 0.00
87.00 5.35 2.56 0.00
89.00 5.35 2.56 0.00
91.00 5.35 2.56 0.00
93.00 5.35 2.56 0.00
95.00 5.35 2.56 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 67HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment DEV-1: Post DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=8.670 ac
Runoff Volume=3.526 af
Runoff Depth=4.88"
Tc=5.0 min
CN=96
66.62 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 68HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment DEV-1: Post DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.02 0.20
5.00 0.34 0.10 0.45
7.00 0.53 0.23 0.71
9.00 0.79 0.44 1.25
11.00 1.26 0.87 2.99
13.00 4.13 3.67 3.01
15.00 4.57 4.10 1.42
17.00 4.82 4.36 0.96
19.00 5.02 4.55 0.73
21.00 5.16 4.69 0.58
23.00 5.29 4.82 0.54
25.00 5.35 4.88 0.00
27.00 5.35 4.88 0.00
29.00 5.35 4.88 0.00
31.00 5.35 4.88 0.00
33.00 5.35 4.88 0.00
35.00 5.35 4.88 0.00
37.00 5.35 4.88 0.00
39.00 5.35 4.88 0.00
41.00 5.35 4.88 0.00
43.00 5.35 4.88 0.00
45.00 5.35 4.88 0.00
47.00 5.35 4.88 0.00
49.00 5.35 4.88 0.00
51.00 5.35 4.88 0.00
53.00 5.35 4.88 0.00
55.00 5.35 4.88 0.00
57.00 5.35 4.88 0.00
59.00 5.35 4.88 0.00
61.00 5.35 4.88 0.00
63.00 5.35 4.88 0.00
65.00 5.35 4.88 0.00
67.00 5.35 4.88 0.00
69.00 5.35 4.88 0.00
71.00 5.35 4.88 0.00
73.00 5.35 4.88 0.00
75.00 5.35 4.88 0.00
77.00 5.35 4.88 0.00
79.00 5.35 4.88 0.00
81.00 5.35 4.88 0.00
83.00 5.35 4.88 0.00
85.00 5.35 4.88 0.00
87.00 5.35 4.88 0.00
89.00 5.35 4.88 0.00
91.00 5.35 4.88 0.00
93.00 5.35 4.88 0.00
95.00 5.35 4.88 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 69HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
10 Year Rainfall=5.35"
Runoff Area=8.670 ac
Runoff Volume=1.848 af
Runoff Depth=2.56"
Flow Length=620'
Tc=24.5 min
CN=73
21.67 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 70HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment PRE-1: Pre Dev DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.06 0.00 0.00
3.00 0.18 0.00 0.00
5.00 0.34 0.00 0.00
7.00 0.53 0.00 0.00
9.00 0.79 0.00 0.00
11.00 1.26 0.06 0.49
13.00 4.13 1.62 3.06
15.00 4.57 1.95 1.15
17.00 4.82 2.14 0.77
19.00 5.02 2.29 0.60
21.00 5.16 2.41 0.47
23.00 5.29 2.51 0.44
25.00 5.35 2.56 0.00
27.00 5.35 2.56 0.00
29.00 5.35 2.56 0.00
31.00 5.35 2.56 0.00
33.00 5.35 2.56 0.00
35.00 5.35 2.56 0.00
37.00 5.35 2.56 0.00
39.00 5.35 2.56 0.00
41.00 5.35 2.56 0.00
43.00 5.35 2.56 0.00
45.00 5.35 2.56 0.00
47.00 5.35 2.56 0.00
49.00 5.35 2.56 0.00
51.00 5.35 2.56 0.00
53.00 5.35 2.56 0.00
55.00 5.35 2.56 0.00
57.00 5.35 2.56 0.00
59.00 5.35 2.56 0.00
61.00 5.35 2.56 0.00
63.00 5.35 2.56 0.00
65.00 5.35 2.56 0.00
67.00 5.35 2.56 0.00
69.00 5.35 2.56 0.00
71.00 5.35 2.56 0.00
73.00 5.35 2.56 0.00
75.00 5.35 2.56 0.00
77.00 5.35 2.56 0.00
79.00 5.35 2.56 0.00
81.00 5.35 2.56 0.00
83.00 5.35 2.56 0.00
85.00 5.35 2.56 0.00
87.00 5.35 2.56 0.00
89.00 5.35 2.56 0.00
91.00 5.35 2.56 0.00
93.00 5.35 2.56 0.00
95.00 5.35 2.56 0.00
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 71HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Inflow
Outflow
Discarded
Primary
Secondary
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=8.670 ac
Peak Elev=917.50'
Storage=2.213 af
66.62 cfs
2.74 cfs
0.64 cfs
2.11 cfs
0.00 cfs
Type II 24-hr 10 Year Rainfall=5.35"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 72HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Pond SCM#1: SCM #1 ADS Chambers
Time
(hours)
Inflow
(cfs)
Storage
(acre-feet)
Elevation
(feet)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
1.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
3.00 0.20 0.009 914.52 0.08 0.08 0.00 0.00
5.00 0.45 0.035 914.58 0.22 0.22 0.00 0.00
7.00 0.71 0.092 914.71 0.24 0.24 0.00 0.00
9.00 1.25 0.198 914.95 0.28 0.28 0.00 0.00
11.00 2.99 0.445 915.24 0.32 0.32 0.00 0.00
13.00 3.01 2.212 917.50 2.74 0.64 2.10 0.00
15.00 1.42 2.094 917.26 2.54 0.60 1.93 0.00
17.00 0.96 1.887 916.93 2.24 0.56 1.68 0.00
19.00 0.73 1.682 916.65 1.94 0.52 1.42 0.00
21.00 0.58 1.490 916.41 1.64 0.48 1.16 0.00
23.00 0.54 1.335 916.22 1.37 0.46 0.91 0.00
25.00 0.00 1.183 916.05 1.00 0.43 0.56 0.00
27.00 0.00 1.047 915.89 0.68 0.41 0.27 0.00
29.00 0.00 0.950 915.78 0.51 0.39 0.11 0.00
31.00 0.00 0.875 915.70 0.42 0.38 0.04 0.00
33.00 0.00 0.809 915.63 0.38 0.37 0.01 0.00
35.00 0.00 0.749 915.56 0.36 0.36 0.00 0.00
37.00 0.00 0.689 915.50 0.35 0.35 0.00 0.00
39.00 0.00 0.632 915.43 0.34 0.34 0.00 0.00
41.00 0.00 0.575 915.37 0.34 0.34 0.00 0.00
43.00 0.00 0.520 915.32 0.33 0.33 0.00 0.00
45.00 0.00 0.467 915.26 0.32 0.32 0.00 0.00
47.00 0.00 0.415 915.20 0.31 0.31 0.00 0.00
49.00 0.00 0.364 915.15 0.30 0.30 0.00 0.00
51.00 0.00 0.314 915.10 0.30 0.30 0.00 0.00
53.00 0.00 0.265 915.05 0.29 0.29 0.00 0.00
55.00 0.00 0.218 914.99 0.28 0.28 0.00 0.00
57.00 0.00 0.173 914.89 0.27 0.27 0.00 0.00
59.00 0.00 0.129 914.79 0.25 0.25 0.00 0.00
61.00 0.00 0.089 914.70 0.24 0.24 0.00 0.00
63.00 0.00 0.050 914.61 0.23 0.23 0.00 0.00
65.00 0.00 0.016 914.54 0.13 0.13 0.00 0.00
67.00 0.00 0.004 914.51 0.03 0.03 0.00 0.00
69.00 0.00 0.001 914.50 0.01 0.01 0.00 0.00
71.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
73.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
75.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
77.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
79.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
81.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
83.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
85.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
87.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
89.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
91.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
93.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
95.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 73HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 1S: EX-DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)7
6
5
4
3
2
1
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=1.999 ac
Runoff Volume=0.587 af
Runoff Depth=3.52"
Flow Length=351'
Tc=25.2 min
CN=74
6.81 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 74HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 1S: EX-DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.02 0.03
11.00 1.50 0.15 0.21
13.00 4.94 2.32 0.95
15.00 5.46 2.74 0.34
17.00 5.77 2.99 0.23
19.00 6.00 3.19 0.18
21.00 6.17 3.33 0.14
23.00 6.33 3.46 0.13
25.00 6.40 3.52 0.00
27.00 6.40 3.52 0.00
29.00 6.40 3.52 0.00
31.00 6.40 3.52 0.00
33.00 6.40 3.52 0.00
35.00 6.40 3.52 0.00
37.00 6.40 3.52 0.00
39.00 6.40 3.52 0.00
41.00 6.40 3.52 0.00
43.00 6.40 3.52 0.00
45.00 6.40 3.52 0.00
47.00 6.40 3.52 0.00
49.00 6.40 3.52 0.00
51.00 6.40 3.52 0.00
53.00 6.40 3.52 0.00
55.00 6.40 3.52 0.00
57.00 6.40 3.52 0.00
59.00 6.40 3.52 0.00
61.00 6.40 3.52 0.00
63.00 6.40 3.52 0.00
65.00 6.40 3.52 0.00
67.00 6.40 3.52 0.00
69.00 6.40 3.52 0.00
71.00 6.40 3.52 0.00
73.00 6.40 3.52 0.00
75.00 6.40 3.52 0.00
77.00 6.40 3.52 0.00
79.00 6.40 3.52 0.00
81.00 6.40 3.52 0.00
83.00 6.40 3.52 0.00
85.00 6.40 3.52 0.00
87.00 6.40 3.52 0.00
89.00 6.40 3.52 0.00
91.00 6.40 3.52 0.00
93.00 6.40 3.52 0.00
95.00 6.40 3.52 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 75HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 2S: EX-DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=6.588 ac
Runoff Volume=1.825 af
Runoff Depth=3.32"
Flow Length=503'
Tc=23.5 min
CN=72
22.06 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 76HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: EX-DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.01 0.06
11.00 1.50 0.11 0.60
13.00 4.94 2.15 2.86
15.00 5.46 2.56 1.09
17.00 5.77 2.81 0.73
19.00 6.00 2.99 0.57
21.00 6.17 3.14 0.44
23.00 6.33 3.26 0.41
25.00 6.40 3.32 0.00
27.00 6.40 3.32 0.00
29.00 6.40 3.32 0.00
31.00 6.40 3.32 0.00
33.00 6.40 3.32 0.00
35.00 6.40 3.32 0.00
37.00 6.40 3.32 0.00
39.00 6.40 3.32 0.00
41.00 6.40 3.32 0.00
43.00 6.40 3.32 0.00
45.00 6.40 3.32 0.00
47.00 6.40 3.32 0.00
49.00 6.40 3.32 0.00
51.00 6.40 3.32 0.00
53.00 6.40 3.32 0.00
55.00 6.40 3.32 0.00
57.00 6.40 3.32 0.00
59.00 6.40 3.32 0.00
61.00 6.40 3.32 0.00
63.00 6.40 3.32 0.00
65.00 6.40 3.32 0.00
67.00 6.40 3.32 0.00
69.00 6.40 3.32 0.00
71.00 6.40 3.32 0.00
73.00 6.40 3.32 0.00
75.00 6.40 3.32 0.00
77.00 6.40 3.32 0.00
79.00 6.40 3.32 0.00
81.00 6.40 3.32 0.00
83.00 6.40 3.32 0.00
85.00 6.40 3.32 0.00
87.00 6.40 3.32 0.00
89.00 6.40 3.32 0.00
91.00 6.40 3.32 0.00
93.00 6.40 3.32 0.00
95.00 6.40 3.32 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 77HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 3S: EX-DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)1
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=0.531 ac
Runoff Volume=0.078 af
Runoff Depth=1.75"
Flow Length=254'
Slope=0.0560 '/'
Tc=12.9 min
CN=55
1.20 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 78HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 3S: EX-DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.00 0.00
11.00 1.50 0.00 0.00
13.00 4.94 0.95 0.12
15.00 5.46 1.22 0.06
17.00 5.77 1.39 0.04
19.00 6.00 1.52 0.03
21.00 6.17 1.62 0.03
23.00 6.33 1.71 0.02
25.00 6.40 1.75 0.00
27.00 6.40 1.75 0.00
29.00 6.40 1.75 0.00
31.00 6.40 1.75 0.00
33.00 6.40 1.75 0.00
35.00 6.40 1.75 0.00
37.00 6.40 1.75 0.00
39.00 6.40 1.75 0.00
41.00 6.40 1.75 0.00
43.00 6.40 1.75 0.00
45.00 6.40 1.75 0.00
47.00 6.40 1.75 0.00
49.00 6.40 1.75 0.00
51.00 6.40 1.75 0.00
53.00 6.40 1.75 0.00
55.00 6.40 1.75 0.00
57.00 6.40 1.75 0.00
59.00 6.40 1.75 0.00
61.00 6.40 1.75 0.00
63.00 6.40 1.75 0.00
65.00 6.40 1.75 0.00
67.00 6.40 1.75 0.00
69.00 6.40 1.75 0.00
71.00 6.40 1.75 0.00
73.00 6.40 1.75 0.00
75.00 6.40 1.75 0.00
77.00 6.40 1.75 0.00
79.00 6.40 1.75 0.00
81.00 6.40 1.75 0.00
83.00 6.40 1.75 0.00
85.00 6.40 1.75 0.00
87.00 6.40 1.75 0.00
89.00 6.40 1.75 0.00
91.00 6.40 1.75 0.00
93.00 6.40 1.75 0.00
95.00 6.40 1.75 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 79HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 4S: EX-DA-4
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)4
3
2
1
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=0.913 ac
Runoff Volume=0.201 af
Runoff Depth=2.65"
Tc=5.0 min
CN=65
4.43 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 80HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 4S: EX-DA-4
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.00 0.00
11.00 1.50 0.03 0.05
13.00 4.94 1.61 0.25
15.00 5.46 1.97 0.13
17.00 5.77 2.19 0.09
19.00 6.00 2.35 0.07
21.00 6.17 2.48 0.05
23.00 6.33 2.59 0.05
25.00 6.40 2.65 0.00
27.00 6.40 2.65 0.00
29.00 6.40 2.65 0.00
31.00 6.40 2.65 0.00
33.00 6.40 2.65 0.00
35.00 6.40 2.65 0.00
37.00 6.40 2.65 0.00
39.00 6.40 2.65 0.00
41.00 6.40 2.65 0.00
43.00 6.40 2.65 0.00
45.00 6.40 2.65 0.00
47.00 6.40 2.65 0.00
49.00 6.40 2.65 0.00
51.00 6.40 2.65 0.00
53.00 6.40 2.65 0.00
55.00 6.40 2.65 0.00
57.00 6.40 2.65 0.00
59.00 6.40 2.65 0.00
61.00 6.40 2.65 0.00
63.00 6.40 2.65 0.00
65.00 6.40 2.65 0.00
67.00 6.40 2.65 0.00
69.00 6.40 2.65 0.00
71.00 6.40 2.65 0.00
73.00 6.40 2.65 0.00
75.00 6.40 2.65 0.00
77.00 6.40 2.65 0.00
79.00 6.40 2.65 0.00
81.00 6.40 2.65 0.00
83.00 6.40 2.65 0.00
85.00 6.40 2.65 0.00
87.00 6.40 2.65 0.00
89.00 6.40 2.65 0.00
91.00 6.40 2.65 0.00
93.00 6.40 2.65 0.00
95.00 6.40 2.65 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 81HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 5S: EX-DA-5
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=6.223 ac
Runoff Volume=1.672 af
Runoff Depth=3.22"
Flow Length=535'
Tc=17.0 min
CN=71
24.28 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 82HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: EX-DA-5
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.00 0.04
11.00 1.50 0.10 0.58
13.00 4.94 2.07 2.26
15.00 5.46 2.47 1.00
17.00 5.77 2.72 0.67
19.00 6.00 2.90 0.52
21.00 6.17 3.04 0.41
23.00 6.33 3.17 0.38
25.00 6.40 3.22 0.00
27.00 6.40 3.22 0.00
29.00 6.40 3.22 0.00
31.00 6.40 3.22 0.00
33.00 6.40 3.22 0.00
35.00 6.40 3.22 0.00
37.00 6.40 3.22 0.00
39.00 6.40 3.22 0.00
41.00 6.40 3.22 0.00
43.00 6.40 3.22 0.00
45.00 6.40 3.22 0.00
47.00 6.40 3.22 0.00
49.00 6.40 3.22 0.00
51.00 6.40 3.22 0.00
53.00 6.40 3.22 0.00
55.00 6.40 3.22 0.00
57.00 6.40 3.22 0.00
59.00 6.40 3.22 0.00
61.00 6.40 3.22 0.00
63.00 6.40 3.22 0.00
65.00 6.40 3.22 0.00
67.00 6.40 3.22 0.00
69.00 6.40 3.22 0.00
71.00 6.40 3.22 0.00
73.00 6.40 3.22 0.00
75.00 6.40 3.22 0.00
77.00 6.40 3.22 0.00
79.00 6.40 3.22 0.00
81.00 6.40 3.22 0.00
83.00 6.40 3.22 0.00
85.00 6.40 3.22 0.00
87.00 6.40 3.22 0.00
89.00 6.40 3.22 0.00
91.00 6.40 3.22 0.00
93.00 6.40 3.22 0.00
95.00 6.40 3.22 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 83HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 6S: Post DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=400,749 sf
Runoff Volume=4.365 af
Runoff Depth=5.69"
Tc=5.0 min
CN=94
83.76 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 84HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 6S: Post DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.01 0.17
5.00 0.40 0.08 0.47
7.00 0.63 0.22 0.81
9.00 0.94 0.46 1.49
11.00 1.50 0.94 3.67
13.00 4.94 4.25 3.81
15.00 5.46 4.76 1.79
17.00 5.77 5.07 1.22
19.00 6.00 5.30 0.92
21.00 6.17 5.47 0.74
23.00 6.33 5.62 0.68
25.00 6.40 5.69 0.00
27.00 6.40 5.69 0.00
29.00 6.40 5.69 0.00
31.00 6.40 5.69 0.00
33.00 6.40 5.69 0.00
35.00 6.40 5.69 0.00
37.00 6.40 5.69 0.00
39.00 6.40 5.69 0.00
41.00 6.40 5.69 0.00
43.00 6.40 5.69 0.00
45.00 6.40 5.69 0.00
47.00 6.40 5.69 0.00
49.00 6.40 5.69 0.00
51.00 6.40 5.69 0.00
53.00 6.40 5.69 0.00
55.00 6.40 5.69 0.00
57.00 6.40 5.69 0.00
59.00 6.40 5.69 0.00
61.00 6.40 5.69 0.00
63.00 6.40 5.69 0.00
65.00 6.40 5.69 0.00
67.00 6.40 5.69 0.00
69.00 6.40 5.69 0.00
71.00 6.40 5.69 0.00
73.00 6.40 5.69 0.00
75.00 6.40 5.69 0.00
77.00 6.40 5.69 0.00
79.00 6.40 5.69 0.00
81.00 6.40 5.69 0.00
83.00 6.40 5.69 0.00
85.00 6.40 5.69 0.00
87.00 6.40 5.69 0.00
89.00 6.40 5.69 0.00
91.00 6.40 5.69 0.00
93.00 6.40 5.69 0.00
95.00 6.40 5.69 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 85HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 7S: Post DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=285,709 sf
Runoff Volume=2.739 af
Runoff Depth=5.01"
Tc=5.0 min
CN=88
55.73 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 86HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 7S: Post DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.01 0.11
7.00 0.63 0.08 0.31
9.00 0.94 0.22 0.72
11.00 1.50 0.58 2.09
13.00 4.94 3.61 2.61
15.00 5.46 4.11 1.24
17.00 5.77 4.41 0.84
19.00 6.00 4.63 0.64
21.00 6.17 4.79 0.51
23.00 6.33 4.94 0.47
25.00 6.40 5.01 0.00
27.00 6.40 5.01 0.00
29.00 6.40 5.01 0.00
31.00 6.40 5.01 0.00
33.00 6.40 5.01 0.00
35.00 6.40 5.01 0.00
37.00 6.40 5.01 0.00
39.00 6.40 5.01 0.00
41.00 6.40 5.01 0.00
43.00 6.40 5.01 0.00
45.00 6.40 5.01 0.00
47.00 6.40 5.01 0.00
49.00 6.40 5.01 0.00
51.00 6.40 5.01 0.00
53.00 6.40 5.01 0.00
55.00 6.40 5.01 0.00
57.00 6.40 5.01 0.00
59.00 6.40 5.01 0.00
61.00 6.40 5.01 0.00
63.00 6.40 5.01 0.00
65.00 6.40 5.01 0.00
67.00 6.40 5.01 0.00
69.00 6.40 5.01 0.00
71.00 6.40 5.01 0.00
73.00 6.40 5.01 0.00
75.00 6.40 5.01 0.00
77.00 6.40 5.01 0.00
79.00 6.40 5.01 0.00
81.00 6.40 5.01 0.00
83.00 6.40 5.01 0.00
85.00 6.40 5.01 0.00
87.00 6.40 5.01 0.00
89.00 6.40 5.01 0.00
91.00 6.40 5.01 0.00
93.00 6.40 5.01 0.00
95.00 6.40 5.01 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 87HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 8S: Post DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)3
2
1
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=21,564 sf
Runoff Volume=0.141 af
Runoff Depth=3.42"
Tc=5.0 min
CN=73
3.08 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 88HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 8S: Post DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.01 0.01
11.00 1.50 0.13 0.07
13.00 4.94 2.23 0.16
15.00 5.46 2.65 0.08
17.00 5.77 2.90 0.05
19.00 6.00 3.09 0.04
21.00 6.17 3.23 0.03
23.00 6.33 3.36 0.03
25.00 6.40 3.42 0.00
27.00 6.40 3.42 0.00
29.00 6.40 3.42 0.00
31.00 6.40 3.42 0.00
33.00 6.40 3.42 0.00
35.00 6.40 3.42 0.00
37.00 6.40 3.42 0.00
39.00 6.40 3.42 0.00
41.00 6.40 3.42 0.00
43.00 6.40 3.42 0.00
45.00 6.40 3.42 0.00
47.00 6.40 3.42 0.00
49.00 6.40 3.42 0.00
51.00 6.40 3.42 0.00
53.00 6.40 3.42 0.00
55.00 6.40 3.42 0.00
57.00 6.40 3.42 0.00
59.00 6.40 3.42 0.00
61.00 6.40 3.42 0.00
63.00 6.40 3.42 0.00
65.00 6.40 3.42 0.00
67.00 6.40 3.42 0.00
69.00 6.40 3.42 0.00
71.00 6.40 3.42 0.00
73.00 6.40 3.42 0.00
75.00 6.40 3.42 0.00
77.00 6.40 3.42 0.00
79.00 6.40 3.42 0.00
81.00 6.40 3.42 0.00
83.00 6.40 3.42 0.00
85.00 6.40 3.42 0.00
87.00 6.40 3.42 0.00
89.00 6.40 3.42 0.00
91.00 6.40 3.42 0.00
93.00 6.40 3.42 0.00
95.00 6.40 3.42 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 89HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment DEV-1: Post DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=8.670 ac
Runoff Volume=4.281 af
Runoff Depth=5.93"
Tc=5.0 min
CN=96
80.08 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 90HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment DEV-1: Post DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.03 0.30
5.00 0.40 0.14 0.60
7.00 0.63 0.31 0.90
9.00 0.94 0.58 1.56
11.00 1.50 1.10 3.65
13.00 4.94 4.47 3.62
15.00 5.46 4.99 1.70
17.00 5.77 5.30 1.15
19.00 6.00 5.53 0.87
21.00 6.17 5.70 0.70
23.00 6.33 5.85 0.64
25.00 6.40 5.93 0.00
27.00 6.40 5.93 0.00
29.00 6.40 5.93 0.00
31.00 6.40 5.93 0.00
33.00 6.40 5.93 0.00
35.00 6.40 5.93 0.00
37.00 6.40 5.93 0.00
39.00 6.40 5.93 0.00
41.00 6.40 5.93 0.00
43.00 6.40 5.93 0.00
45.00 6.40 5.93 0.00
47.00 6.40 5.93 0.00
49.00 6.40 5.93 0.00
51.00 6.40 5.93 0.00
53.00 6.40 5.93 0.00
55.00 6.40 5.93 0.00
57.00 6.40 5.93 0.00
59.00 6.40 5.93 0.00
61.00 6.40 5.93 0.00
63.00 6.40 5.93 0.00
65.00 6.40 5.93 0.00
67.00 6.40 5.93 0.00
69.00 6.40 5.93 0.00
71.00 6.40 5.93 0.00
73.00 6.40 5.93 0.00
75.00 6.40 5.93 0.00
77.00 6.40 5.93 0.00
79.00 6.40 5.93 0.00
81.00 6.40 5.93 0.00
83.00 6.40 5.93 0.00
85.00 6.40 5.93 0.00
87.00 6.40 5.93 0.00
89.00 6.40 5.93 0.00
91.00 6.40 5.93 0.00
93.00 6.40 5.93 0.00
95.00 6.40 5.93 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 91HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
25 Year Rainfall=6.40"
Runoff Area=8.670 ac
Runoff Volume=2.473 af
Runoff Depth=3.42"
Flow Length=620'
Tc=24.5 min
CN=73
29.22 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 92HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment PRE-1: Pre Dev DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.07 0.00 0.00
3.00 0.22 0.00 0.00
5.00 0.40 0.00 0.00
7.00 0.63 0.00 0.00
9.00 0.94 0.01 0.11
11.00 1.50 0.13 0.85
13.00 4.94 2.23 3.96
15.00 5.46 2.65 1.47
17.00 5.77 2.90 0.98
19.00 6.00 3.09 0.76
21.00 6.17 3.23 0.59
23.00 6.33 3.36 0.55
25.00 6.40 3.42 0.00
27.00 6.40 3.42 0.00
29.00 6.40 3.42 0.00
31.00 6.40 3.42 0.00
33.00 6.40 3.42 0.00
35.00 6.40 3.42 0.00
37.00 6.40 3.42 0.00
39.00 6.40 3.42 0.00
41.00 6.40 3.42 0.00
43.00 6.40 3.42 0.00
45.00 6.40 3.42 0.00
47.00 6.40 3.42 0.00
49.00 6.40 3.42 0.00
51.00 6.40 3.42 0.00
53.00 6.40 3.42 0.00
55.00 6.40 3.42 0.00
57.00 6.40 3.42 0.00
59.00 6.40 3.42 0.00
61.00 6.40 3.42 0.00
63.00 6.40 3.42 0.00
65.00 6.40 3.42 0.00
67.00 6.40 3.42 0.00
69.00 6.40 3.42 0.00
71.00 6.40 3.42 0.00
73.00 6.40 3.42 0.00
75.00 6.40 3.42 0.00
77.00 6.40 3.42 0.00
79.00 6.40 3.42 0.00
81.00 6.40 3.42 0.00
83.00 6.40 3.42 0.00
85.00 6.40 3.42 0.00
87.00 6.40 3.42 0.00
89.00 6.40 3.42 0.00
91.00 6.40 3.42 0.00
93.00 6.40 3.42 0.00
95.00 6.40 3.42 0.00
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 93HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Inflow
Outflow
Discarded
Primary
Secondary
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=8.670 ac
Peak Elev=920.41'
Storage=2.434 af
80.08 cfs
25.28 cfs
1.05 cfs
21.99 cfs
2.27 cfs
Type II 24-hr 25 Year Rainfall=6.40"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 94HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Pond SCM#1: SCM #1 ADS Chambers
Time
(hours)
Inflow
(cfs)
Storage
(acre-feet)
Elevation
(feet)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
1.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
3.00 0.30 0.016 914.54 0.13 0.13 0.00 0.00
5.00 0.60 0.055 914.62 0.23 0.23 0.00 0.00
7.00 0.90 0.139 914.81 0.26 0.26 0.00 0.00
9.00 1.56 0.280 915.06 0.29 0.29 0.00 0.00
11.00 3.65 0.591 915.39 0.34 0.34 0.00 0.00
13.00 3.62 2.434 918.26 4.17 0.75 3.43 0.00
15.00 1.70 2.311 917.72 2.92 0.67 2.25 0.00
17.00 1.15 2.087 917.24 2.52 0.60 1.92 0.00
19.00 0.87 1.864 916.90 2.20 0.55 1.65 0.00
21.00 0.70 1.651 916.61 1.90 0.51 1.38 0.00
23.00 0.64 1.472 916.39 1.61 0.48 1.13 0.00
25.00 0.00 1.287 916.17 1.26 0.45 0.81 0.00
27.00 0.00 1.117 915.97 0.83 0.42 0.41 0.00
29.00 0.00 1.001 915.84 0.59 0.40 0.19 0.00
31.00 0.00 0.915 915.74 0.46 0.39 0.07 0.00
33.00 0.00 0.845 915.67 0.39 0.38 0.02 0.00
35.00 0.00 0.782 915.60 0.37 0.37 0.00 0.00
37.00 0.00 0.722 915.53 0.36 0.36 0.00 0.00
39.00 0.00 0.664 915.47 0.35 0.35 0.00 0.00
41.00 0.00 0.607 915.41 0.34 0.34 0.00 0.00
43.00 0.00 0.551 915.35 0.33 0.33 0.00 0.00
45.00 0.00 0.497 915.29 0.32 0.32 0.00 0.00
47.00 0.00 0.444 915.23 0.32 0.32 0.00 0.00
49.00 0.00 0.392 915.18 0.31 0.31 0.00 0.00
51.00 0.00 0.341 915.13 0.30 0.30 0.00 0.00
53.00 0.00 0.292 915.07 0.29 0.29 0.00 0.00
55.00 0.00 0.244 915.02 0.29 0.29 0.00 0.00
57.00 0.00 0.198 914.95 0.28 0.28 0.00 0.00
59.00 0.00 0.153 914.85 0.26 0.26 0.00 0.00
61.00 0.00 0.111 914.75 0.25 0.25 0.00 0.00
63.00 0.00 0.071 914.66 0.24 0.24 0.00 0.00
65.00 0.00 0.033 914.58 0.22 0.22 0.00 0.00
67.00 0.00 0.008 914.52 0.07 0.07 0.00 0.00
69.00 0.00 0.002 914.50 0.02 0.02 0.00 0.00
71.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
73.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
75.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
77.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
79.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
81.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
83.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
85.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
87.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
89.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
91.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
93.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
95.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 95HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 1S: EX-DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)9
8
7
6
5
4
3
2
1
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=1.999 ac
Runoff Volume=0.707 af
Runoff Depth=4.24"
Flow Length=351'
Tc=25.2 min
CN=74
8.21 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 96HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 1S: EX-DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.03 0.06
11.00 1.70 0.22 0.29
13.00 5.58 2.84 1.12
15.00 6.17 3.33 0.40
17.00 6.52 3.63 0.27
19.00 6.78 3.85 0.21
21.00 6.98 4.02 0.16
23.00 7.15 4.17 0.15
25.00 7.23 4.24 0.00
27.00 7.23 4.24 0.00
29.00 7.23 4.24 0.00
31.00 7.23 4.24 0.00
33.00 7.23 4.24 0.00
35.00 7.23 4.24 0.00
37.00 7.23 4.24 0.00
39.00 7.23 4.24 0.00
41.00 7.23 4.24 0.00
43.00 7.23 4.24 0.00
45.00 7.23 4.24 0.00
47.00 7.23 4.24 0.00
49.00 7.23 4.24 0.00
51.00 7.23 4.24 0.00
53.00 7.23 4.24 0.00
55.00 7.23 4.24 0.00
57.00 7.23 4.24 0.00
59.00 7.23 4.24 0.00
61.00 7.23 4.24 0.00
63.00 7.23 4.24 0.00
65.00 7.23 4.24 0.00
67.00 7.23 4.24 0.00
69.00 7.23 4.24 0.00
71.00 7.23 4.24 0.00
73.00 7.23 4.24 0.00
75.00 7.23 4.24 0.00
77.00 7.23 4.24 0.00
79.00 7.23 4.24 0.00
81.00 7.23 4.24 0.00
83.00 7.23 4.24 0.00
85.00 7.23 4.24 0.00
87.00 7.23 4.24 0.00
89.00 7.23 4.24 0.00
91.00 7.23 4.24 0.00
93.00 7.23 4.24 0.00
95.00 7.23 4.24 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 97HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 2S: EX-DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=6.588 ac
Runoff Volume=2.210 af
Runoff Depth=4.03"
Flow Length=503'
Tc=23.5 min
CN=72
26.77 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 98HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: EX-DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.02 0.14
11.00 1.70 0.18 0.84
13.00 5.58 2.65 3.38
15.00 6.17 3.13 1.28
17.00 6.52 3.42 0.86
19.00 6.78 3.64 0.67
21.00 6.98 3.81 0.52
23.00 7.15 3.96 0.48
25.00 7.23 4.03 0.00
27.00 7.23 4.03 0.00
29.00 7.23 4.03 0.00
31.00 7.23 4.03 0.00
33.00 7.23 4.03 0.00
35.00 7.23 4.03 0.00
37.00 7.23 4.03 0.00
39.00 7.23 4.03 0.00
41.00 7.23 4.03 0.00
43.00 7.23 4.03 0.00
45.00 7.23 4.03 0.00
47.00 7.23 4.03 0.00
49.00 7.23 4.03 0.00
51.00 7.23 4.03 0.00
53.00 7.23 4.03 0.00
55.00 7.23 4.03 0.00
57.00 7.23 4.03 0.00
59.00 7.23 4.03 0.00
61.00 7.23 4.03 0.00
63.00 7.23 4.03 0.00
65.00 7.23 4.03 0.00
67.00 7.23 4.03 0.00
69.00 7.23 4.03 0.00
71.00 7.23 4.03 0.00
73.00 7.23 4.03 0.00
75.00 7.23 4.03 0.00
77.00 7.23 4.03 0.00
79.00 7.23 4.03 0.00
81.00 7.23 4.03 0.00
83.00 7.23 4.03 0.00
85.00 7.23 4.03 0.00
87.00 7.23 4.03 0.00
89.00 7.23 4.03 0.00
91.00 7.23 4.03 0.00
93.00 7.23 4.03 0.00
95.00 7.23 4.03 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 99HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 3S: EX-DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)1
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=0.531 ac
Runoff Volume=0.101 af
Runoff Depth=2.27"
Flow Length=254'
Slope=0.0560 '/'
Tc=12.9 min
CN=55
1.60 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 100HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 3S: EX-DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.00 0.00
11.00 1.70 0.00 0.00
13.00 5.58 1.28 0.15
15.00 6.17 1.62 0.07
17.00 6.52 1.83 0.05
19.00 6.78 1.99 0.04
21.00 6.98 2.11 0.03
23.00 7.15 2.22 0.03
25.00 7.23 2.27 0.00
27.00 7.23 2.27 0.00
29.00 7.23 2.27 0.00
31.00 7.23 2.27 0.00
33.00 7.23 2.27 0.00
35.00 7.23 2.27 0.00
37.00 7.23 2.27 0.00
39.00 7.23 2.27 0.00
41.00 7.23 2.27 0.00
43.00 7.23 2.27 0.00
45.00 7.23 2.27 0.00
47.00 7.23 2.27 0.00
49.00 7.23 2.27 0.00
51.00 7.23 2.27 0.00
53.00 7.23 2.27 0.00
55.00 7.23 2.27 0.00
57.00 7.23 2.27 0.00
59.00 7.23 2.27 0.00
61.00 7.23 2.27 0.00
63.00 7.23 2.27 0.00
65.00 7.23 2.27 0.00
67.00 7.23 2.27 0.00
69.00 7.23 2.27 0.00
71.00 7.23 2.27 0.00
73.00 7.23 2.27 0.00
75.00 7.23 2.27 0.00
77.00 7.23 2.27 0.00
79.00 7.23 2.27 0.00
81.00 7.23 2.27 0.00
83.00 7.23 2.27 0.00
85.00 7.23 2.27 0.00
87.00 7.23 2.27 0.00
89.00 7.23 2.27 0.00
91.00 7.23 2.27 0.00
93.00 7.23 2.27 0.00
95.00 7.23 2.27 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 101HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 4S: EX-DA-4
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)6
5
4
3
2
1
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=0.913 ac
Runoff Volume=0.250 af
Runoff Depth=3.28"
Tc=5.0 min
CN=65
5.50 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 102HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 4S: EX-DA-4
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.00 0.00
11.00 1.70 0.06 0.09
13.00 5.58 2.05 0.30
15.00 6.17 2.48 0.15
17.00 6.52 2.74 0.10
19.00 6.78 2.93 0.08
21.00 6.98 3.08 0.06
23.00 7.15 3.22 0.06
25.00 7.23 3.28 0.00
27.00 7.23 3.28 0.00
29.00 7.23 3.28 0.00
31.00 7.23 3.28 0.00
33.00 7.23 3.28 0.00
35.00 7.23 3.28 0.00
37.00 7.23 3.28 0.00
39.00 7.23 3.28 0.00
41.00 7.23 3.28 0.00
43.00 7.23 3.28 0.00
45.00 7.23 3.28 0.00
47.00 7.23 3.28 0.00
49.00 7.23 3.28 0.00
51.00 7.23 3.28 0.00
53.00 7.23 3.28 0.00
55.00 7.23 3.28 0.00
57.00 7.23 3.28 0.00
59.00 7.23 3.28 0.00
61.00 7.23 3.28 0.00
63.00 7.23 3.28 0.00
65.00 7.23 3.28 0.00
67.00 7.23 3.28 0.00
69.00 7.23 3.28 0.00
71.00 7.23 3.28 0.00
73.00 7.23 3.28 0.00
75.00 7.23 3.28 0.00
77.00 7.23 3.28 0.00
79.00 7.23 3.28 0.00
81.00 7.23 3.28 0.00
83.00 7.23 3.28 0.00
85.00 7.23 3.28 0.00
87.00 7.23 3.28 0.00
89.00 7.23 3.28 0.00
91.00 7.23 3.28 0.00
93.00 7.23 3.28 0.00
95.00 7.23 3.28 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 103HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 5S: EX-DA-5
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=6.223 ac
Runoff Volume=2.032 af
Runoff Depth=3.92"
Flow Length=535'
Tc=17.0 min
CN=71
29.54 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 104HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: EX-DA-5
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.01 0.12
11.00 1.70 0.16 0.81
13.00 5.58 2.57 2.68
15.00 6.17 3.04 1.17
17.00 6.52 3.32 0.79
19.00 6.78 3.54 0.61
21.00 6.98 3.70 0.48
23.00 7.15 3.85 0.45
25.00 7.23 3.92 0.00
27.00 7.23 3.92 0.00
29.00 7.23 3.92 0.00
31.00 7.23 3.92 0.00
33.00 7.23 3.92 0.00
35.00 7.23 3.92 0.00
37.00 7.23 3.92 0.00
39.00 7.23 3.92 0.00
41.00 7.23 3.92 0.00
43.00 7.23 3.92 0.00
45.00 7.23 3.92 0.00
47.00 7.23 3.92 0.00
49.00 7.23 3.92 0.00
51.00 7.23 3.92 0.00
53.00 7.23 3.92 0.00
55.00 7.23 3.92 0.00
57.00 7.23 3.92 0.00
59.00 7.23 3.92 0.00
61.00 7.23 3.92 0.00
63.00 7.23 3.92 0.00
65.00 7.23 3.92 0.00
67.00 7.23 3.92 0.00
69.00 7.23 3.92 0.00
71.00 7.23 3.92 0.00
73.00 7.23 3.92 0.00
75.00 7.23 3.92 0.00
77.00 7.23 3.92 0.00
79.00 7.23 3.92 0.00
81.00 7.23 3.92 0.00
83.00 7.23 3.92 0.00
85.00 7.23 3.92 0.00
87.00 7.23 3.92 0.00
89.00 7.23 3.92 0.00
91.00 7.23 3.92 0.00
93.00 7.23 3.92 0.00
95.00 7.23 3.92 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 105HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 6S: Post DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=400,749 sf
Runoff Volume=4.996 af
Runoff Depth=6.52"
Tc=5.0 min
CN=94
95.12 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 106HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 6S: Post DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.02 0.24
5.00 0.46 0.11 0.59
7.00 0.72 0.28 0.96
9.00 1.06 0.56 1.74
11.00 1.70 1.12 4.22
13.00 5.58 4.88 4.31
15.00 6.17 5.47 2.03
17.00 6.52 5.81 1.38
19.00 6.78 6.07 1.04
21.00 6.98 6.26 0.83
23.00 7.15 6.44 0.77
25.00 7.23 6.52 0.00
27.00 7.23 6.52 0.00
29.00 7.23 6.52 0.00
31.00 7.23 6.52 0.00
33.00 7.23 6.52 0.00
35.00 7.23 6.52 0.00
37.00 7.23 6.52 0.00
39.00 7.23 6.52 0.00
41.00 7.23 6.52 0.00
43.00 7.23 6.52 0.00
45.00 7.23 6.52 0.00
47.00 7.23 6.52 0.00
49.00 7.23 6.52 0.00
51.00 7.23 6.52 0.00
53.00 7.23 6.52 0.00
55.00 7.23 6.52 0.00
57.00 7.23 6.52 0.00
59.00 7.23 6.52 0.00
61.00 7.23 6.52 0.00
63.00 7.23 6.52 0.00
65.00 7.23 6.52 0.00
67.00 7.23 6.52 0.00
69.00 7.23 6.52 0.00
71.00 7.23 6.52 0.00
73.00 7.23 6.52 0.00
75.00 7.23 6.52 0.00
77.00 7.23 6.52 0.00
79.00 7.23 6.52 0.00
81.00 7.23 6.52 0.00
83.00 7.23 6.52 0.00
85.00 7.23 6.52 0.00
87.00 7.23 6.52 0.00
89.00 7.23 6.52 0.00
91.00 7.23 6.52 0.00
93.00 7.23 6.52 0.00
95.00 7.23 6.52 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 107HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 7S: Post DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=285,709 sf
Runoff Volume=3.180 af
Runoff Depth=5.82"
Tc=5.0 min
CN=88
64.04 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 108HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 7S: Post DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.02 0.16
7.00 0.72 0.11 0.40
9.00 1.06 0.29 0.88
11.00 1.70 0.73 2.49
13.00 5.58 4.22 2.98
15.00 6.17 4.79 1.41
17.00 6.52 5.13 0.96
19.00 6.78 5.38 0.73
21.00 6.98 5.57 0.58
23.00 7.15 5.74 0.54
25.00 7.23 5.82 0.00
27.00 7.23 5.82 0.00
29.00 7.23 5.82 0.00
31.00 7.23 5.82 0.00
33.00 7.23 5.82 0.00
35.00 7.23 5.82 0.00
37.00 7.23 5.82 0.00
39.00 7.23 5.82 0.00
41.00 7.23 5.82 0.00
43.00 7.23 5.82 0.00
45.00 7.23 5.82 0.00
47.00 7.23 5.82 0.00
49.00 7.23 5.82 0.00
51.00 7.23 5.82 0.00
53.00 7.23 5.82 0.00
55.00 7.23 5.82 0.00
57.00 7.23 5.82 0.00
59.00 7.23 5.82 0.00
61.00 7.23 5.82 0.00
63.00 7.23 5.82 0.00
65.00 7.23 5.82 0.00
67.00 7.23 5.82 0.00
69.00 7.23 5.82 0.00
71.00 7.23 5.82 0.00
73.00 7.23 5.82 0.00
75.00 7.23 5.82 0.00
77.00 7.23 5.82 0.00
79.00 7.23 5.82 0.00
81.00 7.23 5.82 0.00
83.00 7.23 5.82 0.00
85.00 7.23 5.82 0.00
87.00 7.23 5.82 0.00
89.00 7.23 5.82 0.00
91.00 7.23 5.82 0.00
93.00 7.23 5.82 0.00
95.00 7.23 5.82 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 109HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 8S: Post DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)4
3
2
1
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=21,564 sf
Runoff Volume=0.171 af
Runoff Depth=4.13"
Tc=5.0 min
CN=73
3.70 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 110HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 8S: Post DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.03 0.02
11.00 1.70 0.20 0.09
13.00 5.58 2.74 0.19
15.00 6.17 3.23 0.09
17.00 6.52 3.52 0.06
19.00 6.78 3.75 0.05
21.00 6.98 3.91 0.04
23.00 7.15 4.06 0.04
25.00 7.23 4.13 0.00
27.00 7.23 4.13 0.00
29.00 7.23 4.13 0.00
31.00 7.23 4.13 0.00
33.00 7.23 4.13 0.00
35.00 7.23 4.13 0.00
37.00 7.23 4.13 0.00
39.00 7.23 4.13 0.00
41.00 7.23 4.13 0.00
43.00 7.23 4.13 0.00
45.00 7.23 4.13 0.00
47.00 7.23 4.13 0.00
49.00 7.23 4.13 0.00
51.00 7.23 4.13 0.00
53.00 7.23 4.13 0.00
55.00 7.23 4.13 0.00
57.00 7.23 4.13 0.00
59.00 7.23 4.13 0.00
61.00 7.23 4.13 0.00
63.00 7.23 4.13 0.00
65.00 7.23 4.13 0.00
67.00 7.23 4.13 0.00
69.00 7.23 4.13 0.00
71.00 7.23 4.13 0.00
73.00 7.23 4.13 0.00
75.00 7.23 4.13 0.00
77.00 7.23 4.13 0.00
79.00 7.23 4.13 0.00
81.00 7.23 4.13 0.00
83.00 7.23 4.13 0.00
85.00 7.23 4.13 0.00
87.00 7.23 4.13 0.00
89.00 7.23 4.13 0.00
91.00 7.23 4.13 0.00
93.00 7.23 4.13 0.00
95.00 7.23 4.13 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 111HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment DEV-1: Post DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=8.670 ac
Runoff Volume=4.879 af
Runoff Depth=6.75"
Tc=5.0 min
CN=96
90.69 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 112HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment DEV-1: Post DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.05 0.39
5.00 0.46 0.18 0.72
7.00 0.72 0.38 1.05
9.00 1.06 0.69 1.79
11.00 1.70 1.28 4.17
13.00 5.58 5.11 4.09
15.00 6.17 5.70 1.92
17.00 6.52 6.04 1.30
19.00 6.78 6.30 0.99
21.00 6.98 6.50 0.79
23.00 7.15 6.67 0.73
25.00 7.23 6.75 0.00
27.00 7.23 6.75 0.00
29.00 7.23 6.75 0.00
31.00 7.23 6.75 0.00
33.00 7.23 6.75 0.00
35.00 7.23 6.75 0.00
37.00 7.23 6.75 0.00
39.00 7.23 6.75 0.00
41.00 7.23 6.75 0.00
43.00 7.23 6.75 0.00
45.00 7.23 6.75 0.00
47.00 7.23 6.75 0.00
49.00 7.23 6.75 0.00
51.00 7.23 6.75 0.00
53.00 7.23 6.75 0.00
55.00 7.23 6.75 0.00
57.00 7.23 6.75 0.00
59.00 7.23 6.75 0.00
61.00 7.23 6.75 0.00
63.00 7.23 6.75 0.00
65.00 7.23 6.75 0.00
67.00 7.23 6.75 0.00
69.00 7.23 6.75 0.00
71.00 7.23 6.75 0.00
73.00 7.23 6.75 0.00
75.00 7.23 6.75 0.00
77.00 7.23 6.75 0.00
79.00 7.23 6.75 0.00
81.00 7.23 6.75 0.00
83.00 7.23 6.75 0.00
85.00 7.23 6.75 0.00
87.00 7.23 6.75 0.00
89.00 7.23 6.75 0.00
91.00 7.23 6.75 0.00
93.00 7.23 6.75 0.00
95.00 7.23 6.75 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 113HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
50 Year Rainfall=7.23"
Runoff Area=8.670 ac
Runoff Volume=2.987 af
Runoff Depth=4.13"
Flow Length=620'
Tc=24.5 min
CN=73
35.34 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 114HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment PRE-1: Pre Dev DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.25 0.00 0.00
5.00 0.46 0.00 0.00
7.00 0.72 0.00 0.00
9.00 1.06 0.03 0.21
11.00 1.70 0.20 1.17
13.00 5.58 2.74 4.67
15.00 6.17 3.23 1.72
17.00 6.52 3.52 1.15
19.00 6.78 3.75 0.89
21.00 6.98 3.91 0.69
23.00 7.15 4.06 0.64
25.00 7.23 4.13 0.01
27.00 7.23 4.13 0.00
29.00 7.23 4.13 0.00
31.00 7.23 4.13 0.00
33.00 7.23 4.13 0.00
35.00 7.23 4.13 0.00
37.00 7.23 4.13 0.00
39.00 7.23 4.13 0.00
41.00 7.23 4.13 0.00
43.00 7.23 4.13 0.00
45.00 7.23 4.13 0.00
47.00 7.23 4.13 0.00
49.00 7.23 4.13 0.00
51.00 7.23 4.13 0.00
53.00 7.23 4.13 0.00
55.00 7.23 4.13 0.00
57.00 7.23 4.13 0.00
59.00 7.23 4.13 0.00
61.00 7.23 4.13 0.00
63.00 7.23 4.13 0.00
65.00 7.23 4.13 0.00
67.00 7.23 4.13 0.00
69.00 7.23 4.13 0.00
71.00 7.23 4.13 0.00
73.00 7.23 4.13 0.00
75.00 7.23 4.13 0.00
77.00 7.23 4.13 0.00
79.00 7.23 4.13 0.00
81.00 7.23 4.13 0.00
83.00 7.23 4.13 0.00
85.00 7.23 4.13 0.00
87.00 7.23 4.13 0.00
89.00 7.23 4.13 0.00
91.00 7.23 4.13 0.00
93.00 7.23 4.13 0.00
95.00 7.23 4.13 0.00
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 115HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Inflow
Outflow
Discarded
Primary
Secondary
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=8.670 ac
Peak Elev=921.15'
Storage=2.434 af
90.69 cfs
74.49 cfs
1.16 cfs
28.71 cfs
45.18 cfs
Type II 24-hr 50 Year Rainfall=7.23"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 116HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Pond SCM#1: SCM #1 ADS Chambers
Time
(hours)
Inflow
(cfs)
Storage
(acre-feet)
Elevation
(feet)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
1.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
3.00 0.39 0.021 914.55 0.18 0.18 0.00 0.00
5.00 0.72 0.075 914.67 0.24 0.24 0.00 0.00
7.00 1.05 0.180 914.90 0.27 0.27 0.00 0.00
9.00 1.79 0.348 915.13 0.30 0.30 0.00 0.00
11.00 4.17 0.711 915.52 0.36 0.36 0.00 0.00
13.00 4.09 2.434 918.40 4.98 0.76 4.21 0.00
15.00 1.92 2.345 917.80 2.98 0.68 2.30 0.00
17.00 1.30 2.137 917.34 2.61 0.62 1.99 0.00
19.00 0.99 1.923 916.98 2.29 0.56 1.72 0.00
21.00 0.79 1.712 916.69 1.99 0.52 1.46 0.00
23.00 0.73 1.532 916.46 1.71 0.49 1.22 0.00
25.00 0.00 1.337 916.23 1.37 0.46 0.91 0.00
27.00 0.00 1.150 916.01 0.91 0.43 0.49 0.00
29.00 0.00 1.024 915.87 0.64 0.41 0.23 0.00
31.00 0.00 0.933 915.76 0.48 0.39 0.09 0.00
33.00 0.00 0.860 915.68 0.41 0.38 0.03 0.00
35.00 0.00 0.796 915.61 0.37 0.37 0.00 0.00
37.00 0.00 0.736 915.55 0.36 0.36 0.00 0.00
39.00 0.00 0.677 915.48 0.35 0.35 0.00 0.00
41.00 0.00 0.620 915.42 0.34 0.34 0.00 0.00
43.00 0.00 0.564 915.36 0.33 0.33 0.00 0.00
45.00 0.00 0.509 915.30 0.33 0.33 0.00 0.00
47.00 0.00 0.456 915.25 0.32 0.32 0.00 0.00
49.00 0.00 0.404 915.19 0.31 0.31 0.00 0.00
51.00 0.00 0.353 915.14 0.30 0.30 0.00 0.00
53.00 0.00 0.304 915.09 0.30 0.30 0.00 0.00
55.00 0.00 0.255 915.04 0.29 0.29 0.00 0.00
57.00 0.00 0.208 914.97 0.28 0.28 0.00 0.00
59.00 0.00 0.163 914.87 0.26 0.26 0.00 0.00
61.00 0.00 0.121 914.77 0.25 0.25 0.00 0.00
63.00 0.00 0.080 914.68 0.24 0.24 0.00 0.00
65.00 0.00 0.042 914.59 0.23 0.23 0.00 0.00
67.00 0.00 0.012 914.53 0.10 0.10 0.00 0.00
69.00 0.00 0.003 914.51 0.02 0.02 0.00 0.00
71.00 0.00 0.001 914.50 0.01 0.01 0.00 0.00
73.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
75.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
77.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
79.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
81.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
83.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
85.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
87.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
89.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
91.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
93.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
95.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 117HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 1S: EX-DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)10
9
8
7
6
5
4
3
2
1
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=1.999 ac
Runoff Volume=0.834 af
Runoff Depth=5.01"
Flow Length=351'
Tc=25.2 min
CN=74
9.68 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 118HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 1S: EX-DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.01
9.00 1.19 0.06 0.09
11.00 1.90 0.30 0.37
13.00 6.25 3.39 1.30
15.00 6.90 3.96 0.46
17.00 7.30 4.30 0.31
19.00 7.59 4.56 0.24
21.00 7.80 4.75 0.18
23.00 8.00 4.92 0.17
25.00 8.09 5.01 0.00
27.00 8.09 5.01 0.00
29.00 8.09 5.01 0.00
31.00 8.09 5.01 0.00
33.00 8.09 5.01 0.00
35.00 8.09 5.01 0.00
37.00 8.09 5.01 0.00
39.00 8.09 5.01 0.00
41.00 8.09 5.01 0.00
43.00 8.09 5.01 0.00
45.00 8.09 5.01 0.00
47.00 8.09 5.01 0.00
49.00 8.09 5.01 0.00
51.00 8.09 5.01 0.00
53.00 8.09 5.01 0.00
55.00 8.09 5.01 0.00
57.00 8.09 5.01 0.00
59.00 8.09 5.01 0.00
61.00 8.09 5.01 0.00
63.00 8.09 5.01 0.00
65.00 8.09 5.01 0.00
67.00 8.09 5.01 0.00
69.00 8.09 5.01 0.00
71.00 8.09 5.01 0.00
73.00 8.09 5.01 0.00
75.00 8.09 5.01 0.00
77.00 8.09 5.01 0.00
79.00 8.09 5.01 0.00
81.00 8.09 5.01 0.00
83.00 8.09 5.01 0.00
85.00 8.09 5.01 0.00
87.00 8.09 5.01 0.00
89.00 8.09 5.01 0.00
91.00 8.09 5.01 0.00
93.00 8.09 5.01 0.00
95.00 8.09 5.01 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Subcatchment 2S: EX-DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=6.588 ac
Runoff Volume=2.621 af
Runoff Depth=4.77"
Flow Length=503'
Tc=23.5 min
CN=72
31.75 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 120HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: EX-DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.00
9.00 1.19 0.04 0.23
11.00 1.90 0.25 1.10
13.00 6.25 3.20 3.92
15.00 6.90 3.75 1.48
17.00 7.30 4.08 0.99
19.00 7.59 4.33 0.76
21.00 7.80 4.52 0.59
23.00 8.00 4.69 0.55
25.00 8.09 4.77 0.00
27.00 8.09 4.77 0.00
29.00 8.09 4.77 0.00
31.00 8.09 4.77 0.00
33.00 8.09 4.77 0.00
35.00 8.09 4.77 0.00
37.00 8.09 4.77 0.00
39.00 8.09 4.77 0.00
41.00 8.09 4.77 0.00
43.00 8.09 4.77 0.00
45.00 8.09 4.77 0.00
47.00 8.09 4.77 0.00
49.00 8.09 4.77 0.00
51.00 8.09 4.77 0.00
53.00 8.09 4.77 0.00
55.00 8.09 4.77 0.00
57.00 8.09 4.77 0.00
59.00 8.09 4.77 0.00
61.00 8.09 4.77 0.00
63.00 8.09 4.77 0.00
65.00 8.09 4.77 0.00
67.00 8.09 4.77 0.00
69.00 8.09 4.77 0.00
71.00 8.09 4.77 0.00
73.00 8.09 4.77 0.00
75.00 8.09 4.77 0.00
77.00 8.09 4.77 0.00
79.00 8.09 4.77 0.00
81.00 8.09 4.77 0.00
83.00 8.09 4.77 0.00
85.00 8.09 4.77 0.00
87.00 8.09 4.77 0.00
89.00 8.09 4.77 0.00
91.00 8.09 4.77 0.00
93.00 8.09 4.77 0.00
95.00 8.09 4.77 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 121HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 3S: EX-DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)2
1
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=0.531 ac
Runoff Volume=0.126 af
Runoff Depth=2.85"
Flow Length=254'
Slope=0.0560 '/'
Tc=12.9 min
CN=55
2.04 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 122HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 3S: EX-DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.00
9.00 1.19 0.00 0.00
11.00 1.90 0.01 0.01
13.00 6.25 1.66 0.18
15.00 6.90 2.06 0.09
17.00 7.30 2.31 0.06
19.00 7.59 2.51 0.05
21.00 7.80 2.65 0.04
23.00 8.00 2.78 0.03
25.00 8.09 2.85 0.00
27.00 8.09 2.85 0.00
29.00 8.09 2.85 0.00
31.00 8.09 2.85 0.00
33.00 8.09 2.85 0.00
35.00 8.09 2.85 0.00
37.00 8.09 2.85 0.00
39.00 8.09 2.85 0.00
41.00 8.09 2.85 0.00
43.00 8.09 2.85 0.00
45.00 8.09 2.85 0.00
47.00 8.09 2.85 0.00
49.00 8.09 2.85 0.00
51.00 8.09 2.85 0.00
53.00 8.09 2.85 0.00
55.00 8.09 2.85 0.00
57.00 8.09 2.85 0.00
59.00 8.09 2.85 0.00
61.00 8.09 2.85 0.00
63.00 8.09 2.85 0.00
65.00 8.09 2.85 0.00
67.00 8.09 2.85 0.00
69.00 8.09 2.85 0.00
71.00 8.09 2.85 0.00
73.00 8.09 2.85 0.00
75.00 8.09 2.85 0.00
77.00 8.09 2.85 0.00
79.00 8.09 2.85 0.00
81.00 8.09 2.85 0.00
83.00 8.09 2.85 0.00
85.00 8.09 2.85 0.00
87.00 8.09 2.85 0.00
89.00 8.09 2.85 0.00
91.00 8.09 2.85 0.00
93.00 8.09 2.85 0.00
95.00 8.09 2.85 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Subcatchment 4S: EX-DA-4
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)7
6
5
4
3
2
1
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=0.913 ac
Runoff Volume=0.302 af
Runoff Depth=3.97"
Tc=5.0 min
CN=65
6.63 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 124HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 4S: EX-DA-4
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.00
9.00 1.19 0.00 0.01
11.00 1.90 0.11 0.12
13.00 6.25 2.53 0.36
15.00 6.90 3.03 0.17
17.00 7.30 3.33 0.12
19.00 7.59 3.56 0.09
21.00 7.80 3.74 0.07
23.00 8.00 3.89 0.07
25.00 8.09 3.97 0.00
27.00 8.09 3.97 0.00
29.00 8.09 3.97 0.00
31.00 8.09 3.97 0.00
33.00 8.09 3.97 0.00
35.00 8.09 3.97 0.00
37.00 8.09 3.97 0.00
39.00 8.09 3.97 0.00
41.00 8.09 3.97 0.00
43.00 8.09 3.97 0.00
45.00 8.09 3.97 0.00
47.00 8.09 3.97 0.00
49.00 8.09 3.97 0.00
51.00 8.09 3.97 0.00
53.00 8.09 3.97 0.00
55.00 8.09 3.97 0.00
57.00 8.09 3.97 0.00
59.00 8.09 3.97 0.00
61.00 8.09 3.97 0.00
63.00 8.09 3.97 0.00
65.00 8.09 3.97 0.00
67.00 8.09 3.97 0.00
69.00 8.09 3.97 0.00
71.00 8.09 3.97 0.00
73.00 8.09 3.97 0.00
75.00 8.09 3.97 0.00
77.00 8.09 3.97 0.00
79.00 8.09 3.97 0.00
81.00 8.09 3.97 0.00
83.00 8.09 3.97 0.00
85.00 8.09 3.97 0.00
87.00 8.09 3.97 0.00
89.00 8.09 3.97 0.00
91.00 8.09 3.97 0.00
93.00 8.09 3.97 0.00
95.00 8.09 3.97 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 125HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 5S: EX-DA-5
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=6.223 ac
Runoff Volume=2.415 af
Runoff Depth=4.66"
Flow Length=535'
Tc=17.0 min
CN=71
35.09 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 126HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: EX-DA-5
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.00
9.00 1.19 0.03 0.20
11.00 1.90 0.23 1.07
13.00 6.25 3.10 3.11
15.00 6.90 3.64 1.35
17.00 7.30 3.97 0.91
19.00 7.59 4.22 0.70
21.00 7.80 4.41 0.55
23.00 8.00 4.58 0.51
25.00 8.09 4.66 0.00
27.00 8.09 4.66 0.00
29.00 8.09 4.66 0.00
31.00 8.09 4.66 0.00
33.00 8.09 4.66 0.00
35.00 8.09 4.66 0.00
37.00 8.09 4.66 0.00
39.00 8.09 4.66 0.00
41.00 8.09 4.66 0.00
43.00 8.09 4.66 0.00
45.00 8.09 4.66 0.00
47.00 8.09 4.66 0.00
49.00 8.09 4.66 0.00
51.00 8.09 4.66 0.00
53.00 8.09 4.66 0.00
55.00 8.09 4.66 0.00
57.00 8.09 4.66 0.00
59.00 8.09 4.66 0.00
61.00 8.09 4.66 0.00
63.00 8.09 4.66 0.00
65.00 8.09 4.66 0.00
67.00 8.09 4.66 0.00
69.00 8.09 4.66 0.00
71.00 8.09 4.66 0.00
73.00 8.09 4.66 0.00
75.00 8.09 4.66 0.00
77.00 8.09 4.66 0.00
79.00 8.09 4.66 0.00
81.00 8.09 4.66 0.00
83.00 8.09 4.66 0.00
85.00 8.09 4.66 0.00
87.00 8.09 4.66 0.00
89.00 8.09 4.66 0.00
91.00 8.09 4.66 0.00
93.00 8.09 4.66 0.00
95.00 8.09 4.66 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 127HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 6S: Post DA-1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)115
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=400,749 sf
Runoff Volume=5.651 af
Runoff Depth=7.37"
Tc=5.0 min
CN=94
106.85 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 128HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 6S: Post DA-1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.03 0.32
5.00 0.51 0.14 0.71
7.00 0.80 0.35 1.13
9.00 1.19 0.66 2.01
11.00 1.90 1.30 4.80
13.00 6.25 5.54 4.84
15.00 6.90 6.19 2.28
17.00 7.30 6.58 1.54
19.00 7.59 6.87 1.17
21.00 7.80 7.09 0.94
23.00 8.00 7.28 0.86
25.00 8.09 7.37 0.00
27.00 8.09 7.37 0.00
29.00 8.09 7.37 0.00
31.00 8.09 7.37 0.00
33.00 8.09 7.37 0.00
35.00 8.09 7.37 0.00
37.00 8.09 7.37 0.00
39.00 8.09 7.37 0.00
41.00 8.09 7.37 0.00
43.00 8.09 7.37 0.00
45.00 8.09 7.37 0.00
47.00 8.09 7.37 0.00
49.00 8.09 7.37 0.00
51.00 8.09 7.37 0.00
53.00 8.09 7.37 0.00
55.00 8.09 7.37 0.00
57.00 8.09 7.37 0.00
59.00 8.09 7.37 0.00
61.00 8.09 7.37 0.00
63.00 8.09 7.37 0.00
65.00 8.09 7.37 0.00
67.00 8.09 7.37 0.00
69.00 8.09 7.37 0.00
71.00 8.09 7.37 0.00
73.00 8.09 7.37 0.00
75.00 8.09 7.37 0.00
77.00 8.09 7.37 0.00
79.00 8.09 7.37 0.00
81.00 8.09 7.37 0.00
83.00 8.09 7.37 0.00
85.00 8.09 7.37 0.00
87.00 8.09 7.37 0.00
89.00 8.09 7.37 0.00
91.00 8.09 7.37 0.00
93.00 8.09 7.37 0.00
95.00 8.09 7.37 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 129HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 7S: Post DA-2
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=285,709 sf
Runoff Volume=3.638 af
Runoff Depth=6.66"
Tc=5.0 min
CN=88
72.61 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 130HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 7S: Post DA-2
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.04 0.22
7.00 0.80 0.15 0.50
9.00 1.19 0.37 1.06
11.00 1.90 0.89 2.90
13.00 6.25 4.86 3.36
15.00 6.90 5.50 1.59
17.00 7.30 5.88 1.08
19.00 7.59 6.16 0.82
21.00 7.80 6.38 0.66
23.00 8.00 6.57 0.60
25.00 8.09 6.66 0.00
27.00 8.09 6.66 0.00
29.00 8.09 6.66 0.00
31.00 8.09 6.66 0.00
33.00 8.09 6.66 0.00
35.00 8.09 6.66 0.00
37.00 8.09 6.66 0.00
39.00 8.09 6.66 0.00
41.00 8.09 6.66 0.00
43.00 8.09 6.66 0.00
45.00 8.09 6.66 0.00
47.00 8.09 6.66 0.00
49.00 8.09 6.66 0.00
51.00 8.09 6.66 0.00
53.00 8.09 6.66 0.00
55.00 8.09 6.66 0.00
57.00 8.09 6.66 0.00
59.00 8.09 6.66 0.00
61.00 8.09 6.66 0.00
63.00 8.09 6.66 0.00
65.00 8.09 6.66 0.00
67.00 8.09 6.66 0.00
69.00 8.09 6.66 0.00
71.00 8.09 6.66 0.00
73.00 8.09 6.66 0.00
75.00 8.09 6.66 0.00
77.00 8.09 6.66 0.00
79.00 8.09 6.66 0.00
81.00 8.09 6.66 0.00
83.00 8.09 6.66 0.00
85.00 8.09 6.66 0.00
87.00 8.09 6.66 0.00
89.00 8.09 6.66 0.00
91.00 8.09 6.66 0.00
93.00 8.09 6.66 0.00
95.00 8.09 6.66 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 131HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment 8S: Post DA-3
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)4
3
2
1
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=21,564 sf
Runoff Volume=0.202 af
Runoff Depth=4.89"
Tc=5.0 min
CN=73
4.35 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 132HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 8S: Post DA-3
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.00
9.00 1.19 0.05 0.02
11.00 1.90 0.28 0.11
13.00 6.25 3.29 0.22
15.00 6.90 3.85 0.11
17.00 7.30 4.19 0.07
19.00 7.59 4.45 0.06
21.00 7.80 4.64 0.04
23.00 8.00 4.81 0.04
25.00 8.09 4.89 0.00
27.00 8.09 4.89 0.00
29.00 8.09 4.89 0.00
31.00 8.09 4.89 0.00
33.00 8.09 4.89 0.00
35.00 8.09 4.89 0.00
37.00 8.09 4.89 0.00
39.00 8.09 4.89 0.00
41.00 8.09 4.89 0.00
43.00 8.09 4.89 0.00
45.00 8.09 4.89 0.00
47.00 8.09 4.89 0.00
49.00 8.09 4.89 0.00
51.00 8.09 4.89 0.00
53.00 8.09 4.89 0.00
55.00 8.09 4.89 0.00
57.00 8.09 4.89 0.00
59.00 8.09 4.89 0.00
61.00 8.09 4.89 0.00
63.00 8.09 4.89 0.00
65.00 8.09 4.89 0.00
67.00 8.09 4.89 0.00
69.00 8.09 4.89 0.00
71.00 8.09 4.89 0.00
73.00 8.09 4.89 0.00
75.00 8.09 4.89 0.00
77.00 8.09 4.89 0.00
79.00 8.09 4.89 0.00
81.00 8.09 4.89 0.00
83.00 8.09 4.89 0.00
85.00 8.09 4.89 0.00
87.00 8.09 4.89 0.00
89.00 8.09 4.89 0.00
91.00 8.09 4.89 0.00
93.00 8.09 4.89 0.00
95.00 8.09 4.89 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
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Page 133HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment DEV-1: Post DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=8.670 ac
Runoff Volume=5.499 af
Runoff Depth=7.61"
Tc=5.0 min
CN=96
101.67 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 134HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment DEV-1: Post DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.06 0.48
5.00 0.51 0.22 0.84
7.00 0.80 0.45 1.21
9.00 1.19 0.80 2.04
11.00 1.90 1.48 4.70
13.00 6.25 5.77 4.58
15.00 6.90 6.43 2.15
17.00 7.30 6.82 1.46
19.00 7.59 7.11 1.11
21.00 7.80 7.33 0.88
23.00 8.00 7.52 0.81
25.00 8.09 7.61 0.00
27.00 8.09 7.61 0.00
29.00 8.09 7.61 0.00
31.00 8.09 7.61 0.00
33.00 8.09 7.61 0.00
35.00 8.09 7.61 0.00
37.00 8.09 7.61 0.00
39.00 8.09 7.61 0.00
41.00 8.09 7.61 0.00
43.00 8.09 7.61 0.00
45.00 8.09 7.61 0.00
47.00 8.09 7.61 0.00
49.00 8.09 7.61 0.00
51.00 8.09 7.61 0.00
53.00 8.09 7.61 0.00
55.00 8.09 7.61 0.00
57.00 8.09 7.61 0.00
59.00 8.09 7.61 0.00
61.00 8.09 7.61 0.00
63.00 8.09 7.61 0.00
65.00 8.09 7.61 0.00
67.00 8.09 7.61 0.00
69.00 8.09 7.61 0.00
71.00 8.09 7.61 0.00
73.00 8.09 7.61 0.00
75.00 8.09 7.61 0.00
77.00 8.09 7.61 0.00
79.00 8.09 7.61 0.00
81.00 8.09 7.61 0.00
83.00 8.09 7.61 0.00
85.00 8.09 7.61 0.00
87.00 8.09 7.61 0.00
89.00 8.09 7.61 0.00
91.00 8.09 7.61 0.00
93.00 8.09 7.61 0.00
95.00 8.09 7.61 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 135HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Subcatchment PRE-1: Pre Dev DA for SCM #1
Runoff
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
100 Year Rainfall=8.09"
Runoff Area=8.670 ac
Runoff Volume=3.533 af
Runoff Depth=4.89"
Flow Length=620'
Tc=24.5 min
CN=73
41.78 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 136HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment PRE-1: Pre Dev DA for SCM #1
Time
(hours)
Precip.
(inches)
Excess
(inches)
Runoff
(cfs)
1.00 0.08 0.00 0.00
3.00 0.28 0.00 0.00
5.00 0.51 0.00 0.00
7.00 0.80 0.00 0.01
9.00 1.19 0.05 0.34
11.00 1.90 0.28 1.52
13.00 6.25 3.29 5.41
15.00 6.90 3.85 1.98
17.00 7.30 4.19 1.32
19.00 7.59 4.45 1.02
21.00 7.80 4.64 0.79
23.00 8.00 4.81 0.73
25.00 8.09 4.89 0.01
27.00 8.09 4.89 0.00
29.00 8.09 4.89 0.00
31.00 8.09 4.89 0.00
33.00 8.09 4.89 0.00
35.00 8.09 4.89 0.00
37.00 8.09 4.89 0.00
39.00 8.09 4.89 0.00
41.00 8.09 4.89 0.00
43.00 8.09 4.89 0.00
45.00 8.09 4.89 0.00
47.00 8.09 4.89 0.00
49.00 8.09 4.89 0.00
51.00 8.09 4.89 0.00
53.00 8.09 4.89 0.00
55.00 8.09 4.89 0.00
57.00 8.09 4.89 0.00
59.00 8.09 4.89 0.00
61.00 8.09 4.89 0.00
63.00 8.09 4.89 0.00
65.00 8.09 4.89 0.00
67.00 8.09 4.89 0.00
69.00 8.09 4.89 0.00
71.00 8.09 4.89 0.00
73.00 8.09 4.89 0.00
75.00 8.09 4.89 0.00
77.00 8.09 4.89 0.00
79.00 8.09 4.89 0.00
81.00 8.09 4.89 0.00
83.00 8.09 4.89 0.00
85.00 8.09 4.89 0.00
87.00 8.09 4.89 0.00
89.00 8.09 4.89 0.00
91.00 8.09 4.89 0.00
93.00 8.09 4.89 0.00
95.00 8.09 4.89 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 137HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Pond SCM#1: SCM #1 ADS Chambers
Inflow
Outflow
Discarded
Primary
Secondary
Hydrograph
Time (hours)
9590858075706560555045403530252015105Flow (cfs)120
110
100
90
80
70
60
50
40
30
20
10
0
Inflow Area=8.670 ac
Peak Elev=921.17'
Storage=2.434 af
101.67 cfs
113.57 cfs
1.16 cfs
28.83 cfs
83.61 cfs
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
Page 138HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Hydrograph for Pond SCM#1: SCM #1 ADS Chambers
Time
(hours)
Inflow
(cfs)
Storage
(acre-feet)
Elevation
(feet)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
1.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
3.00 0.48 0.027 914.56 0.22 0.22 0.00 0.00
5.00 0.84 0.098 914.72 0.24 0.24 0.00 0.00
7.00 1.21 0.224 915.00 0.28 0.28 0.00 0.00
9.00 2.04 0.422 915.21 0.31 0.31 0.00 0.00
11.00 4.70 0.836 915.66 0.39 0.38 0.01 0.00
13.00 4.58 2.434 918.00 3.12 0.71 2.42 0.00
15.00 2.15 2.374 917.86 3.02 0.69 2.34 0.00
17.00 1.46 2.185 917.44 2.69 0.63 2.06 0.00
19.00 1.11 1.980 917.07 2.37 0.58 1.79 0.00
21.00 0.88 1.772 916.77 2.07 0.53 1.54 0.00
23.00 0.81 1.592 916.54 1.81 0.50 1.31 0.00
25.00 0.00 1.389 916.29 1.47 0.47 1.00 0.00
27.00 0.00 1.185 916.05 1.00 0.43 0.57 0.00
29.00 0.00 1.048 915.89 0.68 0.41 0.27 0.00
31.00 0.00 0.951 915.78 0.51 0.39 0.12 0.00
33.00 0.00 0.875 915.70 0.42 0.38 0.04 0.00
35.00 0.00 0.810 915.63 0.38 0.37 0.01 0.00
37.00 0.00 0.749 915.56 0.36 0.36 0.00 0.00
39.00 0.00 0.690 915.50 0.35 0.35 0.00 0.00
41.00 0.00 0.632 915.43 0.35 0.35 0.00 0.00
43.00 0.00 0.576 915.37 0.34 0.34 0.00 0.00
45.00 0.00 0.521 915.32 0.33 0.33 0.00 0.00
47.00 0.00 0.467 915.26 0.32 0.32 0.00 0.00
49.00 0.00 0.415 915.20 0.31 0.31 0.00 0.00
51.00 0.00 0.364 915.15 0.30 0.30 0.00 0.00
53.00 0.00 0.314 915.10 0.30 0.30 0.00 0.00
55.00 0.00 0.266 915.05 0.29 0.29 0.00 0.00
57.00 0.00 0.218 914.99 0.28 0.28 0.00 0.00
59.00 0.00 0.173 914.89 0.27 0.27 0.00 0.00
61.00 0.00 0.130 914.79 0.25 0.25 0.00 0.00
63.00 0.00 0.089 914.70 0.24 0.24 0.00 0.00
65.00 0.00 0.050 914.61 0.23 0.23 0.00 0.00
67.00 0.00 0.016 914.54 0.14 0.14 0.00 0.00
69.00 0.00 0.004 914.51 0.03 0.03 0.00 0.00
71.00 0.00 0.001 914.50 0.01 0.01 0.00 0.00
73.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
75.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
77.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
79.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
81.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
83.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
85.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
87.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
89.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
91.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
93.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
95.00 0.00 0.000 914.50 0.00 0.00 0.00 0.00
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Events for Subcatchment DEV-1: Post DA for SCM #1
Event Rainfall
(inches)
Runoff
(cfs)
Volume
(acre-feet)
Depth
(inches)
1 Year 2.98 35.98 1.830 2.53
2 Year 3.62 44.31 2.286 3.16
10 Year 5.35 66.62 3.526 4.88
25 Year 6.40 80.08 4.281 5.93
50 Year 7.23 90.69 4.879 6.75
100 Year 8.09 101.67 5.499 7.61
Type II 24-hr 100 Year Rainfall=8.09"Randy Marion-Ford Statesville- SC-740 - 011119
Printed 1/23/2019Prepared by Piedmont Design Associates, PA
HydroCAD® 10.00-22 s/n 00898 © 2018 HydroCAD Software Solutions LLC
Events for Pond SCM#1: SCM #1 ADS Chambers
Event Inflow
(cfs)
Outflow
(cfs)
Discarded
(cfs)
Primary
(cfs)
Secondary
(cfs)
Elevation
(feet)
Storage
(acre-feet)
1 Year 35.98 0.97 0.43 0.54 0.00 916.04 1.174
2 Year 44.31 1.54 0.47 1.07 0.00 916.34 1.430
10 Year 66.62 2.74 0.64 2.11 0.00 917.50 2.213
25 Year 80.08 25.28 1.05 21.99 2.27 920.41 2.434
50 Year 90.69 74.49 1.16 28.71 45.18 921.15 2.434
100 Year 101.67 113.57 1.16 28.83 83.61 921.17 2.434

SECTION 7
WQ and Detention
Drainage Area Map

N02°23'55"E211.83 S79°40'47"E39.53S79°40'47"E50.48N02°23'55"E301.41
N19°
5
2
'
0
1
"
E
41.0
6N69°43'27"W18.96N23
°
1
1
'
3
9
"
E
52.7
1
S19°
2
2
'
1
3
"
W
87.30 S79°35'36"E229.87N79°35'36"W609.35L6L7L8
L11L12 L13Fox Avenue#4744-63-7354L14 EX SSMH FFL 1064RIM=916.92(916.6 COS)INV=898.76(COS)EX SSMH FFL 1074RIM=930.15(928.61 COS)INV=901.3(COS)EX-DA-2286,993 SF (6.59 AC.)Q10 = 16.28 CFSEX-DA-439,790 SF (0.92 AC.)Q10 = 3.15 CFSEX-DA-5271,070 SF (6.22 AC.)Q10 = 17.85 CFSEXIST.WOODSEXIST.WOODSEXIST.WOODSEXIST.GRAVELEXIST.GRAVELTc

L
INE
300 FT. SHEETFLOW @ 1.53%Tc

L
I
N
E300 FT. SHEETFLOW @ 2.27%73 FT. SHALLOWFLOW @ 2.21%130 FT. SHALLOWFLOW @ 6.36%51 FT. SHALLOWFLOW @ 5.71%EX-SSMH-1RIM: 935.97INV.:924.22Fox AvenueGateway Crossing Drive
EXIST.SIGNPADEX. 30" RCPEX. 18" RCP2:1 SLOPE
EXIST.SIGNPOLEInterstate 77
SOUTHBOUND LANE
NORTHBOUND LANE EXIST.WOODSEX. HEADWALL30" INV. = 915.9118" INV. = 916.58EX-DA-187,049 SF (2.00 AC.)Q10 = 5.09 CFSTc LINE254 FT. SHEETFLOW @ 5.60%EX-DA-323,120 SF (0.53 AC.)Q10 = 0.75 CFS300 FT. SHEETFLOW @ 6.24%235 FT. SHALLOWFLOW @ 3.84%Tc LINE
Suite 101 Westfield Center , 125 East Plaza Drive
Mooresville, North Carolina 28115
Phone:[phone] Fax:[phone] www.pdapa.com
NCBELS License #: C-1007Know what'sbelow.before you dig.CallR
FES-UGN02°23'55"E211.83 S79°40'47"E39.53S79°40'47"E50.48N02°23'55"E301.41
N19°
5
2
'
0
1
"
E
41.0
6N69°43'27"W18.96N23
°
1
1
'
3
9
"
E
52.7
1
S19°
2
2
'
1
3
"
W
87.30 S79°35'36"E229.87N79°35'36"W609.35L6L7L8
L11L12 L13L14 -3.08%935.37-2.69%-3.43%2.81%930928929931932933934 931932933-2.92%925926925924926-5.29%CI-6CI-736" RCP CI-9CI-1015" RCP EX SSMH FFL 1064RIM=916.92(916.6 COS)INV=898.76(COS)EX SSMH FFL 1074RIM=930.15(928.61 COS)INV=901.3(COS)927928929935940932933934936937938939926
927 922923924EX-SSMH-1RIM: 935.97INV.:924.22Fox AvenueGateway Crossing Drive
EXIST.SIGNPADEX. 30" RCPEX. 18" RCPCI-1118" RCP
WW-83
6
"

R
C
P
2:1 SLOPE 18" RCPJB-2024" RCP
EXIST.SIGNPOLEInterstate 77
2.43%9259219229239249269279289309319
3
2
9
32932932932935933934936937938 930927928929
-0.77%0.28%920920919921925926F.F. ELEV.= 930.0SOUTHBOUND LANE
NORTHBOUND LANE
9
1
5
.
2
9
9
1
3
.
0
018" RCPPROPOSED FORDBUILDING(57,597 SF)FUTURE BUILDING(10,458 SF)DI-2DI-3DI-4DI-530" RCP922930928929931932933934932928925 925930929930935930928928929931931931932930930930928928929929930935931932933
934936 CI-13CI-1218" RCPCI-1518" RCP30" RCP30" RCP24" RCP18" RCP915920F.F. ELEV. = 930.00920925925924HP 931932CI-118" RCP930935935934
EX. HEADWALL30" INV. = 915.9118" INV. = 916.58930928928929929931930929929929929931
HP40.00'CI-1624" RCP24"
RCP925922922922923924926927LPHPHPCS-UG274.18'191.50'24" RCP926
921926927928928929929929929 CI-20ACI-14CI-17COCOCOCOCOCOCOCOCOCOCOCO COCOCOCOCO24" RCP24" RCP920921922
DA
DADADADA DA DA DA DA DA DA DA DA DA DA DADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADA DA DA DA DADADADADADADADADADADA915920PERM. CLASS 'B'RIP-RAP (6'x16')921 921 917926927
92892
9 CI-1924" RCPCI-1824" RCPPROP. UNDERGROUNDWQ/DETENTION (SCM)STONE BOT ELEV. = 914.5BOT ELEV. =915.00TOP ELEV. = 917.50STONE TOP ELEV. = 918.50COD.A. #2(Undetained)285,709 SF(6.56 AC.)929.60D.A. #3(Undetained)21,564 SF(0.50 AC.)DADADADADADADADADA
DA
DADADA DA DA DA DA DA DA DADADADADADADADADADADADADADADADADADADADADADA DA DA DADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADA
DA
DA
DA DA DA DA DA #1(SCM)377,525 SF(8.67 AC.)D.A. #423,225 SF(0.52 AC.)Suite 101 Westfield Center , 125 East Plaza Drive
Mooresville, North Carolina 28115
Phone:[phone] Fax:[phone] www.pdapa.com
NCBELS License #: C-1007Know what'sbelow.before you dig.CallR