SW4221201_Design Calculations_20221207

STORMWATER & EROSION CONTROL
CALCULATIONS
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SALEM BROOKE SUBDIVISION
FORSYTH COUNTY, NORTH CAROLINA
PREPARED BY:
LATHAM-WALTERS ENGINEERING, INC.
16507-A NORTHCROSS DRIVE
HUNTERSVILLE, N.C. 28078
Phone: [phone] Fax: [phone]
N.C. Corporate License C-1815
FOR
BRAXTON REAL ESTATE & DEVELOPMENT COMPANY, LLC
6420 HAMPTON KNOLL ROAD
CLEMMONS, N.C. 27012
DATE: NOVEMBER 22, 2022
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Dschedule (25 YR.)
Page 1
Line
Inlet
Gnd/Rim
Drng
Total
Runoff
i
i
Flow
Invert
Invert
Capac
Line
Line
Line
Vol
Line
Depth
Depth
Cover
No.
ID
El Up
Area
Area
Coeff
Inlet
Sys
Rate
Up
Dn
Full
Size
Length
Slope
Dn
ID
Dn
Up
Up
(ft)
(ac)
(ac)
(C)
(in/hr)
(in/hr)
(cfs)
(ft)
(ft)
(cfs)
(in)
(ft)
M
(ft/s)
(ft)
(ft)
(ft)
1
DI 1
811.50
2.39
2.39
0.60
7.59
7.59
10.89
807.00
806.00
12.70
18
68.360
1.46
6.87
DI 1-FES 2
1.26
1.26**
3.00
2
DI 9
807.00
5.98
5.98
0.60
5.31
5.31
19.05
803.00
802.20
26.80
24
56.979
1.40
7.20
DI 9-FES 10
1.57
1.57**
2.00
3
DI 6
806.50
1.86
1.86
0.60
7.59
7.59
8.47
801.75
801.00
10.70
18
72.300
1.04
5.93
DI 6-FES 7
1.13
1.13**
3.25
4
SDMH 4
809.11
0.01
9.69
0.60
7.59
4.64
26.97
799.00
797.80
45.48
30
97.560
1.23
7.26
SDMH4-FES 5
1.77
1.77**
7.61
5
HW 3
806.29
9.68
9.68
0.60
4.66
4.66
27.08
803.00
799.20
79.18
30
101.940
3.73
8.35
HW3-SDMH4
1.57
1.77**
0.79
Project File: Storm Drainage.stm
Number of lines: 5
Date: 11/22/2022
NOTES: Intensity = 61.15 / (Inlet time + 11.30) 10.75 --Return period = 25 Yrs. ; ** Critical depth
Storm Sewers

Salem Brooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 1
2. Determine Runoff for 10-Year Storm
Q = CIA 19.8 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 11160 cf
4. Size Basin:
INPUT
Basin No.
1
Drainage Area
9.5
Disturbed Area
6.2
C
0.45
Time of Concentration
15
Intensity
4.62
Weir Depth
1.0
Weir Length
10
Storage:
Area
Vol.
Cum Vol
796
5209
0
0
798
6476
11685
11685
800
7844
14320
26005
Surface Area = (Q10 x325) = 6418.91 S.F. 6476.00 S.F. @ EL
Length = 2 x Width
Width 56.7 Feet USE W = 55
Length 113.3 Feet USE L = 120
Depth 1.74 Feet USE D = 2.0
Actual Volume = 11685.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 1.0 FEET
Depth to Top of Embankment 6.0 FEET
2:1 Side Slopes
5' Top Width
798
TOP 800
WEIR 798
BOTTOM 796

6. Design Spillway for Q10 utilizing the Weir Equation with P of Freeboard.
Q = 3.0(Q(H^1.5) wY L = Length of Weir 10 feet
H = Depth of Weir = 1 feet
Qcapacity 30.0 cfs
Q 10 = 19.8 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size=
2.00 " Diameter
Skimmer Orifice Size=
2.00 " (This may be reduced if required)
Amount of Skimmers=
1
Head on Orifice=
0.16667 ft
Qo=
0.04286 cfs 3703.3901 cf/day
Volume:
11160 cf
Drawdown time=
72.32 Hrs 3.01345519 (48-120 hours Required)
Drawdown per
0.01 feet

Salem Brooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 2
2. Determine Runoff for 10-Year Storm
Q = CIA 8.5 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 1872 cf
4. Size Basin:
Surface Area = (Q10 x325) = 2766.52 S.F.
Length = 2 x Width
Width 37.2 Feet USE W =
Length 74.4 Feet USE L =
Depth 0.68 Feet USE D =
INPUT
Basin No.
2
Drainage Area
2.62
Disturbed Area
1.04
C
0.45
Time of Concentration
5
Intensity
7.22
Weir Depth
1.0
Weir Length
10
Storage:
Area
Vol.
Cum Vol
800
2249
0
0
802
3076
5325
5325
804
4004
7080
12405
3076.00 S.F. @ EL
Actual Volume = 5325.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 1.0 FEET
Depth to Top of Embankment 4.0 FEET
2:1 Side Slopes
5' Top Width
40
80
2.0
802
TOP 804
WEIR 802
BOTTOM 800

6. Design Spillway for Q10 utilizing the Weir Equation with P of Freeboard.
Q = 3.0(Q(H^1.5) wY L = Length of Weir 10 feet
H = Depth of Weir = 1 feet
Qcapacity 30.0 cfs
Q 10 = 8.5 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size=
1.00 " Diameter
Skimmer Orifice Size=
1.00 " (This may be reduced if required)
Amount of Skimmers=
1
Head on Orifice=
0.08333 ft
Qo=
0.00758 cfs 654.67306 cf/day
Volume:
1872 cf
Drawdown time=
68.63 Hrs 2.85944256 (48-120 hours Required)
Drawdown per
0.01 feet

TR 55 Urban Hydrology for Small Watershe LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Salem Brook Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Skimmer Basin 1
Prop. Tc for Existing Drainage Area
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nL)^0.8))/((P2)^0.5 x s^0.4)
0.24 n Manning's Coefficient for pavement
100 L Flow Length Travel (100' max. urban, 300' max rural)
3.12 P2 (0.16 in/hr x 24 hours from NCDENR for Charlotte)
0.03 s Slope of hydraulic grade line
0.220 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345's^0.5) Unpaved
V2 = (20.3282's^0.5) Paved
0 Length of Paved Flow
695 Length of Unpaved Flow
2.61 % Slope of Paved Flow
7.19% Slope of Unpaved Flow
4.328 V2 -Unpaved (fps)
3.284 V2 - Paved (fps)
0.000 T2 Paved (seconds)
160.597 T2 Unpaved (seconds)
0.045 T2 Total (hours)
3. Pipe Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
18 d - diameter of pipe, in.
0.375 r - hydraulic radius, I; AreaM/etted Perimeter
2.280 s - slope of hydraulic grade line, (ft/ft)
0.013 n - Manning's roughness coefficient
89.995 V - velocity in fps
1 Length of Flow (ft.)
0.000 T3 (hrs.) Length/Velocity/3600
4. Open Channel Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
0.65
r - hydraulic radius, I; AreaM/etted Perimeter
0.0151
s - slope of hydraulic grade line, (ft/ft)
0.045
n - Manning's roughness coefficient
3.053033
V - velocity in fps
0
Length of Flow (ft.)
0.000
T3 (hrs.) Length/Velocity/3600
0.265
Tc = T1 + T2 + T3 + T4 (hrs.)
15.89
Total Tc (minutes)
Use 16 Minute Tc

TR 55 Urban Hydrology for Small Watershe LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Salem Brook Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Drop Inlet 9
Prop. Tc for Existing Drainage Area
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nL)^0.8))/((P2)^0.5 x s^0.4)
0.24 n Manning's Coefficient for pavement
100 L Flow Length Travel (100' max. urban, 300' max rural)
3.12 P2 (0.16 in/hr x 24 hours from NCDENR for Charlotte)
0.03 s Slope of hydraulic grade line
0.220 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345's^0.5) Unpaved
V2 = (20.3282's^0.5) Paved
0 Length of Paved Flow
441 Length of Unpaved Flow
2.61 % Slope of Paved Flow
6.35% Slope of Unpaved Flow
4.066 V2 -Unpaved (fps)
3.284 V2 - Paved (fps)
0.000 T2 Paved (seconds)
108.473 T2 Unpaved (seconds)
0.030 T2 Total (hours)
3. Pipe Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
18 d - diameter of pipe, in.
0.375 r - hydraulic radius, I; AreaM/etted Perimeter
0.027 s - slope of hydraulic grade line, (ft/ft)
0.013 n - Manning's roughness coefficient
9.727 V - velocity in fps
0 Length of Flow (ft.)
0.000 T3 (hrs.) Length/Velocity/3600
4. Open Channel Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
0.65
r - hydraulic radius, I; AreaM/etted Perimeter
0.0151
s - slope of hydraulic grade line, (ft/ft)
0.03
n - Manning's roughness coefficient
4.57955
V - velocity in fps
413
Length of Flow (ft.)
0.025
T3 (hrs.) Length/Velocity/3600
0.275
Tc = T1 + T2 + T3 + T4 (hrs.)
16.53
Total Tc (minutes)
Use 16 Minute Tc

TR 55 Urban Hydrology for Small Watershe LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Salem Brook Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Headwall 3
Prop. Tc for Existing Drainage Area
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nL)^0.8))/((P2)^0.5 x s^0.4)
0.24 n Manning's Coefficient for pavement
100 L Flow Length Travel (100' max. urban, 300' max rural)
3.12 P2 (0.16 in/hr x 24 hours from NCDENR for Charlotte)
0.01 s Slope of hydraulic grade line
0.367 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345's^0.5) Unpaved
V2 = (20.3282's^0.5) Paved
0 Length of Paved Flow
548 Length of Unpaved Flow
2.61 % Slope of Paved Flow
5.62% Slope of Unpaved Flow
3.825 V2 -Unpaved (fps)
3.284 V2 - Paved (fps)
0.000 T2 Paved (seconds)
143.265 T2 Unpaved (seconds)
0.040 T2 Total (hours)
3. Pipe Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
18 d - diameter of pipe, in.
0.375 r - hydraulic radius, I; AreaM/etted Perimeter
2.280 s - slope of hydraulic grade line, (ft/ft)
0.013 n - Manning's roughness coefficient
89.995 V - velocity in fps
1 Length of Flow (ft.)
0.000 T3 (hrs.) Length/Velocity/3600
4. Open Channel Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
0.65
r - hydraulic radius, I; AreaM/etted Perimeter
0.0151
s - slope of hydraulic grade line, (ft/ft)
0.045
n - Manning's roughness coefficient
3.053033
V - velocity in fps
0
Length of Flow (ft.)
0.000
T3 (hrs.) Length/Velocity/3600
0.406
Tc = T1 + T2 + T3 + T4 (hrs.)
24.38
Total Tc (minutes)
Use 20 Minute Tc

Salem Place Subdivision
Culvert Calculations
Date: 9/21/2022
Project #: 2022.25
CAPACITY CHECK FOR NCDOT DROP INLETS
PACITY CHECK FOR NCDOT STD. 840.05 OPEN THROAT INLET
OPENING HEIGHT 0.5 FT.
NUMBER OF OPENINGS 4
WIDTH OPENING 4.33 FT.
REA OF OPENING = 8.66 SF
JTAL LENGTH = 17.32 FT
/EIR EQUATION: Q= CLH^3/2 (C=3.1)
RIFICE EQUATION: Q= CA(2GH)^1/2 (C=0.60)
DEPTH
(FEET)
Q weir
0.5 18.98 cfs
1 53.69
1.5 98.64
HW/d for max flow of 18.37 cfs = 0.50'
Q orifice
29.48
41.70
51.07

Culvert Report
Hydraflow Express Extension for Autodesk0 AutoCADO Civil 3D0 by Autodesk, Inc.
Headwall 3
Invert Elev Dn (ft)
= 799.20
Calculations
Pipe Length (ft)
= 101.00
Qmin (cfs)
Slope (%)
= 3.76
Qmax (cfs)
Invert Elev Up (ft)
= 803.00
Tailwater Elev (ft)
Rise (in)
= 30.0
Shape
= Circular
Highlighted
Span (in)
= 30.0
Qtotal (cfs)
No. Barrels
= 1
Qpipe (cfs)
n-Value
= 0.012
Qovertop (cfs)
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
HGL Up (ft)
Embankment
Hw Elev (ft)
Top Elevation (ft)
= 810.00
Hw/D (ft)
Top Width (ft)
= 2.00
Flow Regime
Crest Width (ft)
= 100.00
El-(ft)
811.00
809.DD
907.D0
305.00
303.00
301.00
799.00
797.00
0
Headwall 3
1c 20 30 40 50 60 70 30 90 100 110 120 130 140
Circular Culvert HGL Embank
Wednesday, Sep 14 2022
= 24.54
= 24.54
= (dc+D)/2
= 24.54
= 24.54
= 0.00
= 5.59
= 6.97
= 801.29
= 804.69
= 805.64
= 1.06
= Inlet Control
H. Depth jt)
3.00
6.00
4.00
2.00
0.00
2.00
-4.00
-6.00
150
Reach (R)

VEGETATED CONVEYANCE DITCH CALCULATIONS
10 YEAR STORM
Channel
Bottom
Drain
Runoff
i10
Q10
Mannings
Slope
Ditch
Normal
Velocity
Ditch Liner
ID
Width
Area
Coeff ©
(Ditch)
ft/ft
Length
Depth
& Final Grass
FT.
AC.
in/hr
CFS
FT.
FT.
FPS
VCD 1
2
0.79
0.45
6.89
2.45
0.0690
0.0182
264
0.50
1.41 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 2
2
0.39
0.45
6.89
1.21
0.0760
0.0182
200
0.36
1.08 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 3
2
1.20
0.50
6.89
4.13
0.0510
0.0408
407
0.45
2.70 NAG S150 STAPLE PATTERN
"D"
MIX (SOD & BUNCH)
VCD 4
2
1.42
0.50
6.89
4.89
0.0530
0.0339
229
0.53
2.60 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 5
2
0.40
0.50
6.89
1.38
0.0570
0.0500
195
0.25
1.96 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 6
2
0.50
0.50
6.89
1.72
0.0690
0.0216
238
0.40
1.36 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 7
2
1.59
0.50
6.89
5.48
0.0470
0.0488
148
0.48
3.32 NAG S150 STAPLE PATTERN
"D"
MIX (SOD & BUNCH)
VCD8
2
0.61
0.50
6.89
2.10
0.0610
0.0314
89
0.37
1.80 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 9
2
0.29
0.50
6.89
1.00
0.0700
0.0282
133
0.28
1.26 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 10
2
4.38
0.50
5.07
11.10
0.0640
0.0112
149
1.11
1.86 NAG S150 STAPLE PATTERN
"D"
MIX (SOD & BUNCH)
VCD 11
2
5.32
0.50
5.07
13.49
0.0410
0.0516
142
0.69
4.80 NAG SC150 STAPLE PATTERN D
MIX (SOD & BUNCH)
VCD 12
2
0.67
0.50
6.89
2.31
0.0760
0.0216
221
0.45
1.52 NAG S75 STAPLE PATTERN "D"
MIX (SOD & BUNCH)
VCD 13
2
4.64
0.50
4.65
10.79
0.0440
0.0427
413
0.67
3.97 NAG S150 STAPLE PATTERN
"D"
MIX (SOD & BUNCH)
NOTE: VCD 10 & VCD 11 ARE BY-PASS DITCHES IMPROVED TO CARRY OFF -SITE RUNOFF THROUGH THE PROJECT.

10/12/22, 12:38 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
»>VCD1
Name
VCD 1
Discharge
2.45
Channel Slope
0.0182
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S75 Unvegetated Straight 2.45 cfs 2.28 ft/s 0.35 ft 0.035 1.6 Ibs/ft2 0.4 Ibs/ft2 4 STABLE D
Underlying Straight 2.45 cfs 2.28 ft/s 0.35 ft 0.035 1.74 Ibs/ft2 0.29 Ibs/ft2 6.03 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 2.45 cfs 1.41 ft/s 0.5 ft 0.069 4 Ibs/ft2 0.56 Ibs/ft2 7.09 STABLE --
Vegetation
Underlying Straight 2.45 cfs 1.41 ft/s 0.5 ft 0.069 4 Ibs/ft2 0.38 Ibs/ft2 10.44 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232699/show 1 /1

10/12/22, 12:44 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD2A
Name
VCD 2
Discharge
1.21
Channel Slope
0.0182
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S75 Unvegetated Straight 1.21 cfs 1.8 ft/s 0.25 ft 0.037 1.6 Ibs/ft2 0.28 Ibs/ft2 5.73 STABLE D
Underlying Straight 1.21 cfs 1.8 ft/s 0.25 ft 0.037 1.74 Ibs/ft2 0.21 Ibs/ft2 8.11 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 1.21 cfs 1.08 ft/s 0.36 ft 0.076 4 Ibs/ft2 0.41 Ibs/ft2 9.69 STABLE --
Vegetation
Underlying Straight 1.21 cfs 1.08 ft/s 0.36 ft 0.076 4 Ibs/ft2 0.3 Ibs/ft2 13.48 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232701 /show 1 /1

10/12/22, 12:49 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD3
Name
VCD 3
Discharge
4.13
Channel Slope
0.0408
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S150
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S150 Straight 4.13 cfs 3.31 ft/s 0.39 ft 0.039 1.8 Ibs/ft2 1 Ibs/ft2 1.8 STABLE D
Unvegetated
Underlying Straight 4.13 cfs 3.31 ft/s 0.39 ft 0.039 1.96 Ibs/ft2 0.71 Ibs/ft2 2.77 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 4.13 cfs 2.7 ft/s 0.45 ft 0.051 4 Ibs/ft2 1.16 Ibs/ft2 3.46 STABLE --
Vegetation
Underlying Straight 4.13 cfs 2.7 ft/s 0.45 ft 0.051 4 Ibs/ft2 0.8 Ibs/ft2 5.01 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232704/show 1 /1

10/12/22, 12:51 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD4
Name
VCD 4
Discharge
4.89
Channel Slope
0.0339
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S75 Unvegetated Straight 4.89 cfs 3.72 ft/s 0.41 ft 0.032 1.6 Ibs/ft2 0.86 Ibs/ft2 1.85 STABLE D
Underlying Straight 4.89 cfs 3.72 ft/s 0.41 ft 0.032 1.74 Ibs/ft2 0.61 Ibs/ft2 2.87 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 4.89 cfs 2.6 ft/s 0.53 ft 0.053 4 Ibs/ft2 1.11 Ibs/ft2 3.59 STABLE --
Vegetation
Underlying Straight 4.89 cfs 2.6 ft/s 0.53 ft 0.053 4 Ibs/ft2 0.75 Ibs/ft2 5.35 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232705/show 1 /1

10/12/22, 12:54 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD5
Name
VCD 5
Discharge
1.38
Channel Slope
0.05
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S75 Unvegetated Straight 1.38 cfs 2.85 ft/s 0.19 ft 0.033 1.6 Ibs/ft2 0.59 Ibs/ft2 2.72 STABLE D
Underlying Straight 1.38 cfs 2.85 ft/s 0.19 ft 0.033 1.74 Ibs/ft2 0.47 Ibs/ft2 3.69 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 1.38 cfs 1.96 ft/s 0.25 ft 0.057 4 Ibs/ft2 0.8 Ibs/ft2 5.03 STABLE --
Vegetation
Underlying Straight 1.38 cfs 1.96 ft/s 0.25 ft 0.057 4 Ibs/ft2 0.61 Ibs/ft2 6.57 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232706/show 1 /1

10/12/22, 12:55 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD6
Name
VCD 6
Discharge
1.72
Channel Slope
0.0216
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S75 Unvegetated Straight 1.72 cfs 2.17 ft/s 0.28 ft 0.035 1.6 Ibs/ft2 0.37 Ibs/ft2 4.27 STABLE D
Underlying Straight 1.72 cfs 2.17 ft/s 0.28 ft 0.035 1.74 Ibs/ft2 0.28 Ibs/ft2 6.17 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 1.72 cfs 1.36 ft/s 0.4 ft 0.069 4 Ibs/ft2 0.54 Ibs/ft2 7.47 STABLE --
Vegetation
Underlying Straight 1.72 cfs 1.36 ft/s 0.4 ft 0.069 4 Ibs/ft2 0.38 Ibs/ft2 10.56 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232707/show 1 /1

10/12/22, 1:46 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD7
Name
VCD 7
Discharge
5.48
Channel Slope
0.0488
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S150
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S150 Straight 5.48 cfs 4.01 ft/s 0.42 ft 0.036 1.8 Ibs/ft2 1.27 Ibs/ft2 1.41 STABLE D
Unvegetated
Underlying Straight 5.48 cfs 4.01 ft/s 0.42 ft 0.036 1.96 Ibs/ft2 0.89 Ibs/ft2 2.2 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 5.48 cfs 3.32 ft/s 0.48 ft 0.047 4 Ibs/ft2 1.46 Ibs/ft2 2.74 STABLE --
Vegetation
Underlying Straight 5.48 cfs 3.32 ft/s 0.48 ft 0.047 4 Ibs/ft2 1 Ibs/ft2 4.01 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232708/show 1 /1

10/12/22, 2:43 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD8
Name
VCD 8
Discharge
2.1
Channel Slope
0.0314
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S75 Unvegetated Straight 2.1 cfs 2.72 ft/s 0.27 ft 0.034 1.6 Ibs/ft2 0.54 Ibs/ft2 2.99 STABLE D
Underlying Straight 2.1 cfs 2.72 ft/s 0.27 ft 0.034 1.74 Ibs/ft2 0.41 Ibs/ft2 4.3 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 2.1 cfs 1.8 ft/s 0.37 ft 0.061 4 Ibs/ft2 0.73 Ibs/ft2 5.47 STABLE --
Vegetation
Underlying Straight 2.1 cfs 1.8 ft/s 0.37 ft 0.061 4 Ibs/ft2 0.52 Ibs/ft2 7.65 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232710/show 1 /1

10/12/22, 2:43 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD9
Name
VCD 9
Discharge
1
Channel Slope
0.0282
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S75
ECMDS 7.0
North American Green
5401 St. Wendel -Cynthia na Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
S75 Unvegetated Straight 1 cfs 2.01 ft/s 0.19 ft 0.036 1.6 Ibs/ft2 0.34 Ibs/ft2 4.73 STABLE D
Underlying Straight 1 cfs 2.01 ft/s 0.19 ft 0.036 1.74 Ibs/ft2 0.27 Ibs/ft2 6.43 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
Inreinforced Straight 1 cfs 1.26 ft/s 0.28 ft 0.07 4 Ibs/ft2 0.49 Ibs/ft2 8.16 STABLE
Vegetation
Underlying Straight 1 cfs 1.26 ft/s 0.28 ft 0.07 4 Ibs/ft2 0.37 Ibs/ft2 10.82 STABLE
Substrate
hftps://ecmds.com/project/153992/channel-analysis/232714/show 1 /1

10/12/22, 2:46 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>> VCD 10
Name
VCD 10
Discharge
11.1
Channel Slope
0.0112
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S150
ECMDS 7.0
North American Green
5401 St. Wendel -Cynthia na Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
5150 Straight 11.1 cfs 2.4 ft/s 0.95 ft 0.045 1.8 Ibs/ft2 0.66 Ibs/ft2 2.71 STABLE D
Unvegetated
Underlying Straight 11.1 cfs 2.4 ft/s 0.95 ft 0.045 1.96 Ibs/ft2 0.4 Ibs/ft2 4.87 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
Inreinforced Straight 11.1 cfs 1.86 ft/s 1.11 ft 0.064 4 Ibs/ft2 0.78 Ibs/ft2 5.13 STABLE
Vegetation
Underlying Straight 11.1 cfs 1.86 ft/s 1.11 ft 0.064 4 Ibs/ft2 0.46 Ibs/ft2 8.69 STABLE
Substrate
hftps://ecmds.com/project/153992/channel-analysis/232715/show 1 /1

10/12/22, 2:52 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>> VCD 11
Name
VCD 11
Discharge
13.49
Channel Slope
0.0516
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
SC150
ECMDS 7.0
North American Green
5401 St. Wendel -Cynthia na Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
SC150 Straight 13.49 cfs 5.67 ft/s 0.62 ft 0.033 2 Ibs/ft2 1.99 Ibs/ft2 1.01 STABLE D
Unvegetated
Underlying Straight 13.49 cfs 5.67 ft/s 0.62 ft 0.033 2.18 Ibs/ft2 1.3 Ibs/ft2 1.68 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
Inreinforced Straight 13.49 cfs 4.8 ft/s 0.69 ft 0.041 4 Ibs/ft2 2.22 Ibs/ft2 1.8 STABLE
Vegetation
Underlying Straight 13.49 cfs 4.8 ft/s 0.69 ft 0.041 3.11 Ibs/ft2 1.42 Ibs/ft2 2.19 STABLE
Substrate
hftps://ecmds.com/project/153992/channel-analysis/232716/show 1 /1

10/12/22, 1:53 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
»>VCD 12
Name
VCD12
Discharge
10.79
Channel Slope
0.0427
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S150
ECMDS 7.0
North American Green
5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
S150 Straight 10.79 cfs 4.75 ft/s 0.6 ft 0.035 1.8 Ibs/ft2 1.59 Ibs/ft2 1.13 STABLE D
Unvegetated
Underlying Straight 10.79 cfs 4.75 ft/s 0.6 ft 0.035 1.96 Ibs/ft2 1.04 Ibs/ft2 1.88 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress I Factor Pattern
lnreinforced Straight 10.79 cfs 3.97 ft/s 0.67 ft 0.044 4 Ibs/ft2 1.8 Ibs/ft2 2.22 STABLE --
Vegetation
Underlying Straight 10.79 cfs 3.97 ft/s 0.67 ft 0.044 3.67 Ibs/ft2 1.1S Ibs/ft2 3.18 STABLE --
Substrate
https://ecmds.com/project/153992/channel-analysis/232703/show 1 /1

10/24/22, 9:31 AM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>> VCD 13
Name
VCD 13
Discharge
10.79
Channel Slope
0.0427
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
C 6-12 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
S150
ECMDS 7.0
North American Green
5401 St. Wendel -Cynthia na Rd.
Poseyville, Indiana 47633
Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
5150 Straight 10.79 cfs 4.75 ft/s 0.6 ft 0.035 1.8 Ibs/ft2 1.59 Ibs/ft2 1.13 STABLE D
Unvegetated
Underlying Straight 10.79 cfs 4.75 ft/s 0.6 ft 0.035 1.96 Ibs/ft2 1.04 Ibs/ft2 1.88 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
Inreinforced Straight 10.79 cfs 3.97 ft/s 0.67 ft 0.044 4 Ibs/ft2 1.8 Ibs/ft2 2.22 STABLE
Vegetation
Underlying Straight 10.79 cfs 3.97 ft/s 0.67 ft 0.044 3.67 Ibs/ft2 1.15 Ibs/ft2 3.18 STABLE
Substrate
hftps://ecmds.com/project/153992/channel-analysis/232703/show 1 /1