SW4220601_Design Calculations_20221221

STORMWATER CALCULATIONS
FOR
HAVENBROOKE SUBDIVISION
FORSYTH COUNTY, NORTH CAROLINA
.. .�. .
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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
AND DEVELOPMENT CO.
6420 HAMPTON KNOLL RD.
CLEMMONS, NC 27012
6/15/2022
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SEAL a
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Havenbrooke Subdivision Stormwater Narrative
Havenbrooke Subdivision is a 71 lot single family development on a 74.97 acre parcel
in Northeast Forsyth County. The subdivision is being developed as low density since
the percent of impervious coverage is 10.34% which is well below the State's
requirement of being less than 24% BUA, and the density is 0.947 units per acre which
is far less than the maximum 2 units per acre allowed for low density. In trying to
adhere to the low -density requirement of the State the subdivision is being developed
with ditch section roads using 3:1 side slopes with a 2' bottom width with ditch liner
and sodded with dense fescue. The pipe system for the development is limited to
cross pipes with rip rap aprons on the downstream side to keep the outlet velocity at
a non -erosive rate. To meet the State's low -density requirements per 15A NCAC
02H.1003 (2) the following design requirements were used for the low -density project
and are listed and described below:
(a) DENSTIY THRESHOLDS:
The density for this project is less than 2 dwelling units per acre. The impervious
percentage for the net 74.19 acre tract (74.97 ac. less surface water area) is 10.34%
(7.67 acres impervious).
(b) DISPERSED FLOWS:
Stormwater flows for this project will be mostly conveyed using ditch section flows
except where cross pipes are needed to convey stormwater across the NCDOT
designed streets. The outflows from these culverts will use rip rap aprons to reduce
velocities to be non -erosive. Calculations for all aprons have been provided in the
calculation booklet.
(c) VEGETATED CONVEYANCES:
Vegetated conveyances have been designed with side slopes no steeper than 3:1 with
a 2' bottom width to carry the runoff in roadside swales, curb outlets, and dispersed
flows to aid in treating the runoff. Also at the end of all pipe outlets a vegetated
conveyance has been designed to treat the runoff prior to outfalling into the natural
buffer areas. Calculations for the conveyances are contained within.
(d) CURB OUTLET SYSTEMS
Even though curb and gutter are not being used within the development, outlet
systems have been provided in suitable locations on all streets to convey stormwater
to vegetated conveyance systems to provide additional treatment from roadside
runoff. At the end of all curb outlets vegetated conveyances were designed using a
3:1 slope trapezoidal ditch with a minimum length of 100', a 2' bottom width, and
slopes 5% or less. These ditches are to be and sodded with tall fescue. These areas are
depicted on sheets C8.0 Et 8.1 with design information and details.
15A NCAC 2H.1003(4) VEGETATED SETBACKS:
Buffers have been provided on all existing intermittent and perennial streams within
the development. These have been denoted and shown on the plans.
15A NCAC 2H.1003(7) DEED RESTRICTIONS AND PROTECTIVE COVENANTS:
The permittee shall record deed restrictions and protective covenants prior to the
issuance of a certificate of occupancy to ensure that projects will be maintained in
perpetuity consistent with the plans and specifications approved by the permitting
authority.

Dsche ule (25 YR. STORM)
Page 1
Line
Inlet
Gnd/Rim
Drng
Total
Runoff
i
i
Flow
Invert
Invert
Capac
Line
Line
Line
Vel
Line
Depth
Depth
Cover
Line
No.
ID
El Up
Area
Area
Coeff
Inlet
Sys
Rate
Up
Dn
Full
Size
Length
Slope
Dn
ID
Dn
Up
Up
No.
(ft)
(ac)
(ac)
(C)
(in/hr)
(in/hr)
(cfs)
(ft)
(ft)
(cfs)
(in)
(ft)
(%)
(ft/s)
(ft)
(ft)
(ft)
1
DI-6A
880.44
0.18
5.08
0.50
8.25
5.96
14.12
876.52
876.00
24.54
24
51.850
1.00
8.07
6A-FES5A
1.09
1.35"
1.92
1
2
DI-7A
880.53
1.49
4.90
0.50
8.25
5.98
13.62
877.15
876.72
24.30
24
43.720
0.98
7.27
7A-6A
1.15
1.33"
1.38
2
3
DI-8A
883.00
3.41
3.41
0.45
6.03
6.03
9.25
878.94
877.65
11.39
18
128.760
1.00
7.18
8A-7A
1.03
1.17"
2.56
3
4
CULVERT F
879.60
0.64
0.64
0.50
8.25
8.25
2.64
877.60
877.00
9.09
18
93.994
0.64
4.45
F-END
0.55
0.62"
0.50
4
5
DI-1 D
879.54
0.52
2.83
0.50
8.25
8.22
11.62
874.70
874.00
18.62
18
26.140
2.68
11.09
1 D-FESD
0.86
1.30"
3.34
5
6
DI-2D
879.54
2.31
2.31
0.50
8.25
8.25
9.53
875.50
874.90
13.84
18
40.560
1.48
6.87
2D-1 D
1.10
1.19"
2.54
6
7
CULVERT E
878.63
0.94
0.94
0.50
8.25
8.25
3.88
876.42
874.20
13.62
18
131.880
1.68
6.60
HW2-FES1 E
0.55
0.75"
0.71
7
8
DI-3D
888.00
1.56
1.56
0.50
6.95
6.95
5.42
878.92
874.25
15.20
18
222.837
2.10
7.86
3D-FES4D
0.62
0.90"
7.58
8
9
SDMH-2B
867.01
0.00
4.03
0.50
0.00
6.82
12.86
854.80
854.00
15.46
18
43.340
1.85
9.78
2B-FES1 B
1.04
1.35"
10.71
9
10
DI-313
879.29
0.31
4.03
0.50
8.25
6.86
12.92
867.60
858.00
31.83
18
122.610
7.83
17.06
313-213
0.67
1.35"
10.19
10
11
DI-413
879.29
1.11
3.72
0.50
8.25
6.88
11.89
868.67
867.80
16.28
18
42.504
2.05
8.20
413-313
1.15
1.31"
9.12
11
12
SDMH 5B
881.99
0.00
2.61
0.45
0.00
6.92
8.13
870.29
868.90
14.83
18
81.817
1.70
5.98
513-413
1.08
1.10"
10.20
12
13
HW-613
874.85
2.61
2.61
0.45
6.95
6.95
8.16
871.00
870.49
13.00
18
39.064
1.31
7.33
HW6B-5B
0.90
1.11"
2.35
13
14
CULVERT C
875.06
2.06
2.06
0.50
8.25
8.25
8.49
871.91
871.11
22.98
24
77.480
1.03
3.34
HW5-FES4C
1.51
1.04"
1.15
14
15
DI-2C
867.28
3.05
3.48
0.50
8.25
8.15
14.18
861.60
858.00
21.86
18
97.496
3.69
13.16
2-FES1 C
0.88
1.39"
4.18
15
16
DI-3C
867.36
0.43
0.43
0.50
8.25
8.25
1.77
863.75
861.80
24.18
18
43.150
4.52
1.18
3C-2C
1.19
0.50"
2.11
16
17
D I-2A
863.93
0.34
8.02
0.50
8.25
6.01
24.09
849.54
847.91
36.74
24
72.490
2.25
12.47
2A-F E S 1 A
1.18
1.74"
12.39
17
18
D I-3A
863.93
0.36
7.68
0.50
8.25
6.02
23.11
857.04
856.34
32.16
24
40.630
1.72
11.14
3A-2A
1.25
1.71 "
4.89
18
19
DI-4A
868.00
7.32
7.32
0.50
6.03
6.03
22.05
859.00
858.00
42.11
24
33.859
2.95
13.55
4A-3A
1.03
1.68"
7.00
19
Project File: 2134 STORM REV11-22 DITCH.stm
Number of lines: 19
Date: 12/21/2022
NOTES: Intensity = 102.61 / (Inlet time + 16.50) ^ 0.82 -- Return period = 25 Yrs. ; " Critical depth
Storm Sewers

Havenbrooke 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
26.4 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 9954 cf
4. Size Basin:
INPUT
Basin No.
Drainage Area
Disturbed Area
C
Time of Concentratior
Intensity
Weir Depth
Weir Length
Surface Area = (Q10 x325) = 8595.23 S.F. 8818.00 S.F. @ EL.
Length = 2 x Width
Width 65.6 Feet USE W = 60
Length 131.1 Feet USE L = 120
Depth 1.16 Feet USE D = 1.5
Actual Volume = 16149.00 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
1
8.14
5.53
0.45
5
7.22
1.0
10
848
TOP
WEIR
BOTTOM
850
848
846

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 = 26.4 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 3703.39 cf/day
Volume:
9954 cf
Drawdown time=
64.51 Hrs 2.687808 (48-120 hours Required)
Drawdown per
0.02 feet

Havenbrooke 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 14.8 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 7902 cf
4. Size Basin:
Surface Area = (Q10 x325) = 4825.58 S.F.
Length = 2 x Width
Width 49.1 Feet USE W =
Length 98.2 Feet USE L =
Depth 1.64 Feet USE D =
INPUT
Basin No.
2
Drainage Area
4.57
Disturbed Area
4.39
C
0.45
Time of Concentratior
5
Intensity
7.22
Weir Depth
1.0
Weir Length
10
6980.00 S.F. @ EL. 850
60 TOP 852
120 WEIR 850
1.5 BOTTOM 848.5
Actual Volume = 9743.00 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

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 = 14.8 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size=
2.00 " Diameter
Skimmer Orifice Size=
1.75 " (This may be reduced if required)
Amount of Skimmers=
1
Head on Orifice=
0.16667 ft
Qo=
0.03282 cfs 2835.41 cf/day
Volume:
7902 cf
Drawdown time=
66.89 Hrs 2.7869 (48-120 hours Required)
Drawdown per
0.01 feet

Havenbrooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 3
2. Determine Runoff for 10-Year Storm
Q = CIA
20.1 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 6858 cf
4. Size Basin:
Surface Area = (Q10 x325) = 6536.18 S.F.
Length = 2 x Width
Width 57.2 Feet USE W =
Length 114.3 Feet USE L =
Depth 1.05 Feet USE D =
INPUT
Basin No.
3
Drainage Area
6.19
Disturbed Area
3.81
C
0.45
Time of Concentratior
5
Intensity
7.22
Weir Depth
1.0
Weir Length
10
6605.00 S.F. @ EL. 876
50 TOP 878
120 WEIR 876
1.5 BOTTOM 874.5
Actual Volume = 9142.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 2.0 FEET
Depth to Top of Embankment 4.0 FEET
2:1 Side Slopes
5' Top Width

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 = 20.1 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size= 2.00 " Diameter
Skimmer Orifice Size= 1.75 " (This may be reduced if required)
Amount of Skimmers= 1
Head on Orifice= 0.16667 ft
Qo= 0.03282 cfs 2835.41 cf/day
Volume: 6858 cf
Drawdown time= 58.05 Hrs 2.4187 (48-120 hours Required)
Drawdown per 0.03 feet

Havenbrooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 4
2. Determine Runoff for 10-Year Storm
Q = CIA 11.3 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 6282 cf
4. Size Basin:
Surface Area = (Q10 x325) = 3685.18 S.F.
Length = 2 x Width
Width 42.9 Feet USE W =
Length 85.9 Feet USE L =
Depth 1.70 Feet USE D =
INPUT
Basin No.
4
Drainage Area
3.49
Disturbed Area
3.49
C
0.45
Time of Concentratior
5
Intensity
7.22
Weir Depth
2.0
Weir Length
10
3710.00 S.F. @ EL. 850
50 TOP 852
120 WEIR 850
1.5 BOTTOM 848
Actual Volume = 6512.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 2.0 FEET
Depth to Top of Embankment 4.0 FEET
2:1 Side Slopes
5' Top Width

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 = 11.3 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size= 2.00 " Diameter
Skimmer Orifice Size= 1.75 " (This may be reduced if required)
Amount of Skimmers= 1
Head on Orifice= 0.16667 ft
Qo= 0.03282 cfs 2835.41 cf/day
Volume: 6282 cf
Drawdown time= 53.17 Hrs 2.215554 (48-120 hours Required)
Drawdown per 0.04 feet

Havenbrooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 5
2. Determine Runoff for 10-Year Storm
Q = CIA 13.7 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 3042 cf
4. Size Basin:
Surface Area = (Q10 x325) = 4445.44 S.F.
Length = 2 x Width
Width 47.1 Feet USE W =
Length 94.3 Feet USE L =
Depth 0.68 Feet USE D =
INPUT
Basin No.
5
Drainage Area
4.21
Disturbed Area
1.69
C
0.45
Time of Concentratior
5
Intensity
7.22
Weir Depth
2.0
Weir Length
10
4780.00 S.F. @ EL. 850
50 TOP 830
100 WEIR 828
1.0 BOTTOM 827
Actual Volume = 4514.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 2.0 FEET
Depth to Top of Embankment 4.0 FEET
2:1 Side Slopes
5' Top Width

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 = 13.7 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size=
1.50 " Diameter
Skimmer Orifice Size=
1.25 " (This may be reduced if required)
Amount of Skimmers=
1
Head on Orifice=
0.125 ft
Qo=
0.01450 cfs 1252.82 cf/day
Volume:
3042 cf
Drawdown time=
58.27 Hrs 2.428114 (48-120 hours Required)
Drawdown per
0.03 feet

Havenbrooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 6
2. Determine Runoff for 10-Year Storm
Q = CIA 17.1 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 5976 cf
4. Size Basin:
Surface Area = (Q10 x325) = 5564.72 S.F.
Length = 2 x Width
Width 52.7 Feet USE W =
Length 105.5 Feet USE L =
Depth 1.07 Feet USE D =
INPUT
Basin No.
6
Drainage Area
5.27
Disturbed Area
3.32
C
0.45
Time of Concentratior
5
Intensity
7.22
Weir Depth
2.0
Weir Length
10
5456.00 S.F. @ EL. 856
55 TOP 858
110 WEIR 856
1.0 BOTTOM 854
Actual Volume = 9847.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 2.0 FEET
Depth to Top of Embankment 4.0 FEET
2:1 Side Slopes
5' Top Width

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 = 17.1 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size=
2.00 " Diameter
Skimmer Orifice Size=
1.60 " (This may be reduced if required)
Amount of Skimmers=
1
Head on Orifice=
0.16667 ft
Qo=
0.02743 cfs 2370.17 cf/day
Volume:
5976 cf
Drawdown time=
60.51 Hrs 2.521339 (48-120 hours Required)
Drawdown per
0.03 feet

Havenbrooke Subdivision
Forsyth County, NC
Erosion Control
Skimmer Sediment Basin
NCDWQ (or SCDHEC)
1. Basin No. 7
2. Determine Runoff for 10-Year Storm
Q = CIA 6.4 C.F.S.
3. Determine Storage Capacity Required:
1800 CF/AC x Disturbed Area = Storage Volume
Storage Volume = 3546 cf
4. Size Basin:
Surface Area = (Q10 x325) = 2080.17 S.F.
Length = 2 x Width
Width 32.3 Feet USE W =
Length 64.5 Feet USE L =
Depth 1.70 Feet USE D =
INPUT
Basin No.
7
Drainage Area
1.97
Disturbed Area
1.97
C
0.45
Time of Concentratior
5
Intensity
7.22
Weir Depth
2.0
Weir Length
10
2050.00 S.F. @ EL. 850
32 TOP 852
64 WEIR 850
2.0 BOTTOM 848
Actual Volume = 3454.00 Cubic Feet (from the plans)
5. Embankment
Depth to Weir 2.0 FEET
Depth to Top of Embankment 4.0 FEET
2:1 Side Slopes
5' Top Width

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 = 6.4 cfs < Qcapacity - OK
9. Basin Dewateri ng/ Skimmer Sizing:
Q=cA(2gH)^1/2
Skimmer Device Size=
1.50 " Diameter
Skimmer Orifice Size=
1.25 " (This may be reduced if required)
Amount of Skimmers=
1
Head on Orifice=
0.125 ft
Qo=
0.01450 cfs 1252.82 cf/day
Volume:
3546 cf
Drawdown time=
67.93 Hrs 2.830405 (48-120 hours Required)
Drawdown per
0.03 feet

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TR 55 Urban Hydrology for Small Watershed. LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Havenbrooke Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Post -developed
Tc for Existing Drainage Area-Basin#1
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nQA0.8))/((P2)^0.5 x s^0.4)
0.3 n Manning's Coefficient for Grass
100 L Flow Length Travel (100' max. urban, 300' max rural)
3.52 P2 2 Year - 24 Hour Rainfall for Midland, NC
3.00% s Slope of hydraulic grade line
0.231 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345*s^0.5) Unpaved
V2 = (20.3282*s^0.5) Paved
0.01 Length of Paved Flow
296 Length of Unpaved Flow
6.67% Slope of Paved Flow
6.67% Slope of Unpaved Flow
4.166 V2 -Unpaved (fps)
5.249 V2 - Paved (fps)
0.002 T2 Paved (seconds)
71.053 T2 Unpaved (seconds)
0.020 T2 Total (hours)
5. Open Channel Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
5 a - area of foot depth ditch with 3:1 side slopes. ft^2
0.625 r - hydraulic radius, f; Area/Wetted Perimeter
0.04 s - slope of hydraulic grade line, (ft/ft)
0.035 n -Manning's roughness coefficient
h1
h2
I
h1
h2
I
h1
h2
I

6.298 V - velocity in fps
415 Length of Flow (ft.)
0.018 T3 (hrs.) Length/Velocity/3600
0.269 Tc = T1 + T2 + T3 (hrs.)
16.11 Total Tc (minutes)
Post Developed Tc = 16.11 minutes Use 15 minutes

TR 55 Urban Hydrology for Small Watershed. LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Havenbrooke Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Post -developed
Tc for Existing Drainage Area -Basin 6
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nQA0.8))/((P2)^0.5 x s^0.4)
h1
0.3 n Manning's Coefficient for Grass h2
100 L Flow Length Travel (100' max. urban, 300' max rural) 1
3.52 P2 2 Year - 24 Hour Rainfall for Midland, NC
14.00% s Slope of hydraulic grade line
0.124 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345*s^0.5) Unpaved
V2 = (20.3282*s^0.5) Paved
0.01
Length of Paved Flow
296
Length of Unpaved Flow
15.49%
Slope of Paved Flow
15.49%
Slope of Unpaved Flow
6.351
V2 -Unpaved (fps)
8.001
V2 - Paved (fps)
0.001
T2 Paved (seconds)
46.609
T2 Unpaved (seconds)
0.013 T2 Total (hours)
5. Open Channel Flow
h1
h2
I
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps) h1
h2
5 a - area of foot depth ditch with 3:1 side slopes. ft^2 I
0.625 r - hydraulic radius, f; Area/Wetted Perimeter
10.00 s - slope of hydraulic grade line, (ft/ft)
0.035 n -Manning's roughness coefficient

98.408 V - velocity in fps
1 Length of Flow (ft.)
0.000 T3 (hrs.) Length/Velocity/3600
0.137 Tc = T1 + T2 + T3 (hrs.)
8.25 Total Tc (minutes)
Post Developed Tc = 8.25 minutes Use 10 minutes

TR 55 Urban Hydrology for Small Watershed. LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Havenbrooke Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Post -developed
Tc for Existing Drainage Area-VCD 3 and HW-5B
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nQA0.8))/((P2)^0.5 x s^0.4)
h1
0.3 n Manning's Coefficient for Grass h2
100 L Flow Length Travel (100' max. urban, 300' max rural) 1
3.52 P2 2 Year - 24 Hour Rainfall for Midland, NC
14.00% s Slope of hydraulic grade line
0.124 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345*s^0.5) Unpaved
V2 = (20.3282*s^0.5) Paved
0.01
Length of Paved Flow
296
Length of Unpaved Flow
15.49%
Slope of Paved Flow
15.49%
Slope of Unpaved Flow
6.351
V2 -Unpaved (fps)
8.001
V2 - Paved (fps)
0.001
T2 Paved (seconds)
46.609
T2 Unpaved (seconds)
0.013 T2 Total (hours)
5. Open Channel Flow
h1
h2
I
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps) h1
h2
5 a - area of foot depth ditch with 3:1 side slopes. ft^2 I
0.625 r - hydraulic radius, f; Area/Wetted Perimeter
10.00 s - slope of hydraulic grade line, (ft/ft)
0.035 n -Manning's roughness coefficient

98.408 V - velocity in fps
1 Length of Flow (ft.)
0.000 T3 (hrs.) Length/Velocity/3600
0.137 Tc = T1 + T2 + T3 (hrs.)
8.25 Total Tc (minutes)
Post Developed Tc = 8.25 minutes Use 10 minutes

TR 55 Urban Hydrology for Small Watershed. LATHAM-WALTERS ENGINEERING, INC.
Time of Concentration & Travel Time 16507-A Northcross Drive
Havenbrooke Subdivision Huntersville, NC 28078
Forsyth County, NC [phone]
Post -developed
Tc for Existing Drainage Area-VCD10 and DI-8A
Tc = T1 + T2 + T3 Time of Concentration
1. Sheet Flow:
T1 = (0.007 x (nQA0.8))/((P2)^0.5 x s^0.4)
0.3 n Manning's Coefficient for Grass
100 L Flow Length Travel (100' max. urban, 300' max rural)
3.52 P2 2 Year - 24 Hour Rainfall for Midland, NC
3.00% s Slope of hydraulic grade line
0.231 T1 Travel Time (hr.)
2. Shallow Concentrated Flow
V2 = (16.1345*s^0.5) Unpaved
V2 = (20.3282*s^0.5) Paved
0.01 Length of Paved Flow
296 Length of Unpaved Flow
6.67% Slope of Paved Flow
6.67% Slope of Unpaved Flow
4.166 V2 -Unpaved (fps)
5.249 V2 - Paved (fps)
0.002 T2 Paved (seconds)
71.053 T2 Unpaved (seconds)
0.020 T2 Total (hours)
5. Open Channel Flow
V = (1.49 x (r)^0.67 x (s)^0.5)/n Velocity from Manning's Equation (fps)
5 a - area of foot depth ditch with 3:1 side slopes. ft^2
0.625 r - hydraulic radius, f; Area/Wetted Perimeter
0.04 s - slope of hydraulic grade line, (ft/ft)
0.035 n -Manning's roughness coefficient
h1
h2
I
h1
h2
I
h1
h2
I

6.298 V - velocity in fps
415 Length of Flow (ft.)
0.018 T3 (hrs.) Length/Velocity/3600
0.269 Tc = T1 + T2 + T3 (hrs.)
16.11 Total Tc (minutes)
Post Developed Tc = 16.11 minutes Use 15 minutes

Havenbrooke Subdivision
INLET CAPACITY CALCULATION
Date: 12/12/2022
Project #: 2021.34
CAPACITY CHECK FOR NCDOT DROP INLETS
CAPACITY CHECK FOR NCDOT STD. 840.05 OPEN THROAT INLET
OPENING HEIGHT
0.5 FT.
NUMBER OF OPENINGS
4
WIDTH OPENING
4.33 FT.
AREA OF OPENING =
8.66 SF
TOTAL LENGTH =
17.32 FT
WEIR EQUATION: Q= CLH^3/2 (C=3.1)
ORIFICE EQUATION: Q= CA(2GH)^1/2 (C=0.60)
DEPTH Q weir
Q orifice
(FEET)
0.56 22.50 cfs
31.20
1 53.69
41.70
1.5 98.64
51.07
MAX. FLOW TO A STD INLET IS FOR DI-4A Q25=22.05
CFS
HW/d for max flow of 22.05 cfs = 0.56'

Culvert Report
Hydraflow Express Extension for AUtodeskS AUtoCADO Civil 3DO by Autodesk, Inc.
CULVERT C
Invert Elev Dn (ft)
= 871.11
Calculations
Pipe Length (ft)
= 77.48
Qmin (cfs)
Slope (%)
= 1.03
Qmax (cfs)
Invert Elev Up (ft)
= 871.91
Tailwater Elev (ft)
Rise (in)
= 24.0
Shape
= Circular
Highlighted
Span (in)
= 24.0
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)
= 874.00
Hw/D (ft)
Top Width (ft)
= 54.00
Flow Regime
Crest Width (ft)
= 54.00
Elev (R)
875 00
674.00
B73.00
872.00
871.00
B70.00
0
CULVERT C
10 20 30 40 50 60 70 80 90 100 110
Circular Culvert HGL Embank
Wednesday, Dec 21 2022
= 8.49
= 8.49
= (dc+D)/2
= 8.49
= 8.49
= 0.00
= 3.32
= 5.16
= 872.63
= 872.95
= 873.42
= 0.76
= Inlet Control
Hw Depth (fl)
120
Reach (ft)

Culvert Report
Hydraflow Express Extension for AUtodeskS AUtoCADO Civil 3DO by Autodesk, Inc.
CULVERT E
Invert Elev Dn (ft)
= 874.20
Calculations
Pipe Length (ft)
= 131.88
Qmin (cfs)
Slope (%)
= 1.68
Qmax (cfs)
Invert Elev Up (ft)
= 876.42
Tailwater Elev (ft)
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
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)
= 878.00
Hw/D (ft)
Top Width (ft)
= 92.00
Flow Regime
Crest Width (ft)
= 24.00
Elev (R]
879 00
BIB.00
M-00
976.00
975.00
874.00
CULVERT E
Wednesday, Dec 21 2022
= 3.88
= 3.88
= (dc+D)/2
= 3.88
= 3.88
= 0.00
= 2.73
= 4.37
= 875.33
= 877.17
= 877.50
= 0.72
= Inlet Control
Hw Depth (ft)
2 58
1.58
0.59
-0.42
-1.42
-2.42
B73.00 i i i i i i i i i i i i i i i i i i i -3.42
0 10 20 30 40 50 60 70 80 K 100 110 120 130 140 150 160 170 180
Circular Culvert HGL Embank
Reach (ft)

Culvert Report
Hydraflow Express Extension for AUtodeskS AUtoCADO Civil 3DO by Autodesk, Inc.
CULVERT F
Invert Elev Dn (ft)
= 877.00
Calculations
Pipe Length (ft)
= 93.99
Qmin (cfs)
Slope (%)
= 0.64
Qmax (cfs)
Invert Elev Up (ft)
= 877.60
Tailwater Elev (ft)
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
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)
= 880.00
Hw/D (ft)
Top Width (ft)
= 34.00
Flow Regime
Crest Width (ft)
= 34.00
Elev (R)
881 00
880.00
879 00
818.00
977.00
876.00
0
10 20 30
Circular Culvert
40 50
— HGL
CULVERT F
Wednesday, Dec 21 2022
= 2.64
= 2.64
= (dc+D)/2
= 2.64
= 2.64
= 0.00
= 1.98
= 3.87
= 878.06
= 878.22
= 878.46
= 0.58
= Inlet Control
Hw Depth (ft)
3 40
2.40
1 40
0.40
-0 60
-1.60
60 70 80 90 100 110 120 130 140
— Embank
Reach (ft)

VEGETATED CONVEYANCE DITCH CALCULATIONS 10 YR. STORM
Channel
ID
Bottom
Width
FT.
Drain
Area
AC.
Imperv.
Area
Runoff
Coeff ©
i10
in/hr
Q10
CFS
Mannings
(Ditch)
Slope
ft/ft
Ditch
Length
FT.
Normal
Depth
FT.
Velocity
FPS
Ditch Liner and Permanent Vegetation Type
VCD 1
2
0.35
0.16
0.5
6.84
1.20
0.067
0.03
100
0.3
1.41
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 2
2
0.191
0.05
0.51
6.84
0.651
0.051
0.0276
1051
0.23
1.051
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 3
2
5.02
0.85
0.5
5.47
13.73
0.075
0.0426
125
0.97
2.88
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 4
2
0.61
0.1
0.5
6.84
2.09
0.097
0.0427
143
0.44
1.44
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 5
2
0.371
0.11
0.51
6.84
1.27
0.102
0.0464
135
0.34
1.241
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 6
2
1.42
0.07
0.5
6.84
4.86
0.084
0.046
250
0.61
2.06
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 7
2
5.84
0
0.5
5.47
15.97
0.042
0.0418
353
0.8
4.53
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 8
2
2.7
1.12
0.5
5.47
7.38
0.047
0.0421
180
0.58
3.42
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 9
2
3.57
1.07
0.5
5.47
9.76
0.044
0.05
148
0.56
3.9
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 10
2
7.84
1.46
0.45
5.19
18.31
0.068
0.05
150
1.06
3.6
N.A.G. C 125 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 11
2
0.93
0.24
0.51
6.84
3.18
0.063
0.022
180
0.52
1.73
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 12
2
3.41
0.19
0.5
5.19
8.85
0.047
0.038
425
0.65
3.46
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 13
2
0.36
0.06
0.5
6.84
1.23
0.077
0.0177
130
0.37
1.07
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 14
2
1.56
0
0.5
5.19
4.05
0.051
0.0419
395
0.45
2.72
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 15
2
2.82
1.04
0.5
5.19
7.32
0.045
0.0476
165
0.55
3.66
N.A.G. SC 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 16
2
1.68
0.65
0.5
6.84
5.75
0.057
0.0234
132
0.65
2.24
N.A.G. S 150 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)
VCD 17
2
4.36
0.39
0.45
6.84
13.42
0.072
0.051
2351
0.91
3.13
N.A.G. C 125 STAPLE PATTERN "D" W/ MIX (SOD & BUNCH GRASS)

11/16/22, 3:50 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>> VCD 1
Name
VCD 1
Discharge
1.2
Channel Slope
0.03
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 1.2 cfs 1.8 ft/s 0.24 ft 0.047 1.8 Ibs/ft2 0.46 Ibs/ft2 3.94 STABLE D
Unvegetated
Underlying Straight 1.2 cfs 1.8 ft/s 0.24 ft 0.047 1.96 Ibs/ft2 0.35 Ibs/ft2 5.57 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
Vegetation
Underlying Straight
Substrate
1.2 cfs 1.41 ft/s 0.3 ft 0.067
1.2 cfs 1.41 ft/s 0.3 ft 0.067
4lbs/ft2 0.55lbs/ft2 7.23 STABLE
4lbs/ft2 0.41lbs/ft2 9.69 STABLE
hftps://ecmds.com/project/154418/channel-analysis/234646/show# 1 /1

11/16/22, 3:51 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD2
Name
VCD 2
Discharge
0.65
Channel Slope
0.0276
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 0.65 cfs 1.36 ft/s 0.19 ft 0.051 1.8 Ibs/ft2 0.32 Ibs/ft2 5.6 STABLE D
Unvegetated
Underlying Straight 0.65 cfs 1.36 ft/s 0.19 ft 0.051 1.96 Ibs/ft2 0.26 Ibs/ft2 7.58 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 0.65 cfs 1.05 ft/s 0.23 ft 0.075 4 Ibs/ft2 0.4 Ibs/ft2 10.09 STABLE
Vegetation
Underlying Straight 0.65 cfs 1.05 ft/s 0.23 ft 0.075 4 Ibs/ft2 0.31 Ibs/ft2 12.96 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234653/show 1 /1

11/16/22, 4:08 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD3
Name
VCD 3
Discharge
13.73
Channel Slope
0.0426
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
B 12-24 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 13.73 cfs 5.16 ft/s 0.66 ft 0.034 2 Ibs/ft2 1.77 Ibs/ft2 1.13 STABLE D
Unvegetated
Underlying Straight 13.73 cfs 5.16 ft/s 0.66 ft 0.034 2.18 Ibs/ft2 1.14 Ibs/ft2 1.92 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 13.73 cfs 2.88 ft/s 0.97 ft 0.075 4 Ibs/ft2 2.58 Ibs/ft2 1.55 STABLE
Vegetation
Underlying Straight 13.73 cfs 2.88 ft/s 0.97 ft 0.075 4 Ibs/ft2 1.56 Ibs/ft2 2.57 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234654/show 1 /1

11/16/22, 4:11 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD4
Name
VCD 4
Discharge
2.09
Channel Slope
0.0427
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
B 12-24 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 2.09 cfs 2.63 ft/s 0.28 ft 0.041 1.8 Ibs/ft2 0.74 Ibs/ft2 2.42 STABLE D
Unvegetated
Underlying Straight 2.09 cfs 2.63 ft/s 0.28 ft 0.041 1.96 Ibs/ft2 0.56 Ibs/ft2 3.5 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 2.09 cfs 1.44 ft/s 0.44 ft 0.097 4 Ibs/ft2 1.17 Ibs/ft2 3.42 STABLE
Vegetation
Underlying Straight 2.09 cfs 1.44 ft/s 0.44 ft 0.097 4 Ibs/ft2 0.81 Ibs/ft2 4.93 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234656/show 1 /1

11/16/22, 4:12 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD5
Name
VCD 5
Discharge
1.27
Channel Slope
0.0464
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
B 12-24 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 1.27 cfs 2.26 ft/s 0.21 ft 0.043 1.8 Ibs/ft2 0.62 Ibs/ft2 2.93 STABLE D
Unvegetated
Underlying Straight 1.27 cfs 2.26 ft/s 0.21 ft 0.043 1.96 Ibs/ft2 0.49 Ibs/ft2 4.04 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 1.27 cfs 1.24 ft/s 0.34 ft 0.102 4 Ibs/ft2 0.98 Ibs/ft2 4.07 STABLE
Vegetation
Underlying Straight 1.27 cfs 1.24 ft/s 0.34 ft 0.102 4 Ibs/ft2 0.72 Ibs/ft2 5.59 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234658/show 1 /1

11/16/22, 4:14 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD6
Name
VCD 6
Discharge
4.86
Channel Slope
0.046
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
B 12-24 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 4.86 cfs 3.73 ft/s 0.4 ft 0.037 1.8 Ibs/ft2 1.16 Ibs/ft2 1.55 STABLE D
Unvegetated
Underlying Straight 4.86 cfs 3.73 ft/s 0.4 ft 0.037 1.96 Ibs/ft2 0.82 Ibs/ft2 2.39 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 4.86 cfs 2.06 ft/s 0.61 ft 0.084 4 Ibs/ft2 1.76 Ibs/ft2 2.27 STABLE
Vegetation
Underlying Straight 4.86 cfs 2.06 ft/s 0.61 ft 0.084 4 Ibs/ft2 1.15 Ibs/ft2 3.48 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234659/show 1 /1

11/16/22, 4:18 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD7
Name
VCD 7
Discharge
15.97
Channel Slope
0.0418
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 15.97 cfs 5.38 ft/s 0.71 ft 0.033 2 Ibs/ft2 1.86 Ibs/ft2 1.07 STABLE D
Unvegetated
Underlying Straight 15.97 cfs 5.38 ft/s 0.71 ft 0.033 2.18 Ibs/ft2 1.19 Ibs/ft2 1.84 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 15.97 cfs 4.53 ft/s 0.8 ft 0.042 4 Ibs/ft2 2.09 Ibs/ft2 1.91 STABLE
Vegetation
Underlying Straight 15.97 cfs 4.53 ft/s 0.8 ft 0.042 3.33 Ibs/ft2 1.3 Ibs/ft2 2.56 STABLE
Substrate
hftps://ecmds.com/project/l54418/channel-analysis/234661 /show 1 /1

11/16/22, 4:19 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD8
Name
VCD 8
Discharge
7.38
Channel Slope
0.0421
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 7.38 cfs 4.14 ft/s 0.51 ft 0.036 2 Ibs/ft2 1.33 Ibs/ft2 1.5 STABLE D
Unvegetated
Underlying Straight 7.38 cfs 4.14 ft/s 0.51 ft 0.036 2.18 Ibs/ft2 0.9 Ibs/ft2 2.42 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 7.38 cfs 3.42 ft/s 0.58 ft 0.047 4 Ibs/ft2 1.52 Ibs/ft2 2.64 STABLE
Vegetation
Underlying Straight 7.38 cfs 3.42 ft/s 0.58 ft 0.047 4 Ibs/ft2 1 Ibs/ft2 4 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234662/show 1 /1

11/16/22, 4:22 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>>VCD9
Name
VCD 9
Discharge
8.15
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)
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
Underlying Straight 8.15 cfs 4.68 ft/s 0.5 ft 0.034 2.18 Ibs/ft2 1.05 Ibs/ft2 2.07 STABLE D
Substrate
SC150 Straight 8.15 cfs 4.68 ft/s 0.5 ft 0.034 2 Ibs/ft2 1.55 Ibs/ft2 1.29 STABLE D
Unvegetated
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Depth Mannings N Shear Stress Shear Stress Factor Remarks Pattern
Inreinforced Straight 8.15 cfs 3.9 ft/s 0.56 ft 0.044 4 Ibs/ft2 1.75 Ibs/ft2 2.28 STABLE
Vegetation
Underlying Straight 8.15 cfs 3.9 ft/s 0.56 ft 0.044 3.65 Ibs/ft2 1.16 Ibs/ft2 3.14 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234664/show 1 /1

11/16/22, 4:25 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>> VCD 10
Name
VCD 10
Discharge
19.73
Channel Slope
0.05
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
B 12-24 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
C125
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
C125 Straight 19.73 cfs 6.42 ft/s 0.73 ft 0.031 2.3 Ibs/ft2 2.28 Ibs/ft2 1.01 STABLE D
Unvegetated
Underlying Straight 19.73 cfs 6.42 ft/s 0.73 ft 0.031 2.51 Ibs/ft2 1.44 Ibs/ft2 1.73 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 19.73 cfs 3.6 ft/s 1.06 ft 0.068 4 Ibs/ft2 3.3 Ibs/ft2 1.21 STABLE
Vegetation
Underlying Straight 19.73 cfs 3.6 ft/s 1.06 ft 0.068 4 Ibs/ft2 1.97 Ibs/ft2 2.03 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234665/show 1 /1

11/16/22, 4:27 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>>> VCD 11
Name
VCD 11
Discharge
3.18
Channel Slope
0.022
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 3.18 cfs 2.21 ft/s 0.43 ft 0.045 1.8 Ibs/ft2 0.6 Ibs/ft2 3.02 STABLE D
Unvegetated
Underlying Straight 3.18 cfs 2.21 ft/s 0.43 ft 0.045 1.96 Ibs/ft2 0.42 Ibs/ft2 4.72 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 3.18 cfs 1.73 ft/s 0.52 ft 0.063 4 Ibs/ft2 0.71 Ibs/ft2 5.64 STABLE
Vegetation
Underlying Straight 3.18 cfs 1.73 ft/s 0.52 ft 0.063 4 Ibs/ft2 0.48 Ibs/ft2 8.37 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234666/show 1 /1

11/16/22, 4:29 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>> > VCD 12
Name
VCD 12
Discharge
8.85
Channel Slope
0.038
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 8.85 cfs 4.18 ft/s 0.57 ft 0.036 2 Ibs/ft2 1.35 Ibs/ft2 1.48 STABLE D
Unvegetated
Underlying Straight 8.85 cfs 4.18 ft/s 0.57 ft 0.036 2.18 Ibs/ft2 0.89 Ibs/ft2 2.44 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 8.85 cfs 3.46 ft/s 0.65 ft 0.047 4 Ibs/ft2 1.54 Ibs/ft2 2.6 STABLE
Vegetation
Underlying Straight 8.85 cfs 3.46 ft/s 0.65 ft 0.047 4 Ibs/ft2 0.99 Ibs/ft2 4.02 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234667/show 1 /1

11/16/22, 4:31 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>> > VCD 13
Name
VCD 13
Discharge
1.23
Channel Slope
0.0177
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 1.23 cfs 1.4 ft/s 0.3 ft 0.052 1.8 Ibs/ft2 0.33 Ibs/ft2 5.4 STABLE D
Unvegetated
Underlying Straight 1.23 cfs 1.4 ft/s 0.3 ft 0.052 1.96 Ibs/ft2 0.25 Ibs/ft2 7.92 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 1.23 cfs 1.07 ft/s 0.37 ft 0.077 4 Ibs/ft2 0.41 Ibs/ft2 9.77 STABLE
Vegetation
Underlying Straight 1.23 cfs 1.07 ft/s 0.37 ft 0.077 4 Ibs/ft2 0.29 Ibs/ft2 13.64 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234669/show 1 /1

11/16/22, 4:32 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>> > VCD 14
Name
VCD 14
Discharge
4.05
Channel Slope
0.0419
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 4.05 cfs 3.33 ft/s 0.38 ft 0.038 1.8 Ibs/ft2 1.01 Ibs/ft2 1.79 STABLE D
Unvegetated
Underlying Straight 4.05 cfs 3.33 ft/s 0.38 ft 0.038 1.96 Ibs/ft2 0.72 Ibs/ft2 2.74 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 4.05 cfs 2.72 ft/s 0.45 ft 0.051 4 Ibs/ft2 1.16 Ibs/ft2 3.43 STABLE
Vegetation
Underlying Straight 4.05 cfs 2.72 ft/s 0.45 ft 0.051 4 Ibs/ft2 0.81 Ibs/ft2 4.96 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234672/show 1 /1

11/16/22, 4:34 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>> > VCD 15
Name
VCD 15
Discharge
7.32
Channel Slope
0.0476
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 7.32 cfs 4.39 ft/s 0.48 ft 0.035 2 Ibs/ft2 1.44 Ibs/ft2 1.39 STABLE D
Unvegetated
Underlying Straight 7.32 cfs 4.39 ft/s 0.48 ft 0.035 2.18 Ibs/ft2 0.98 Ibs/ft2 2.23 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 7.32 cfs 3.66 ft/s 0.55 ft 0.045 4 Ibs/ft2 1.63 Ibs/ft2 2.45 STABLE
Vegetation
Underlying Straight 7.32 cfs 3.66 ft/s 0.55 ft 0.045 3.85 Ibs/ft2 1.09 Ibs/ft2 3.55 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234674/show 1 /1

11/16/22, 4:35 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>> > VCD 16
Name
VCD 16
Discharge
5.75
Channel Slope
0.0234
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 5.75 cfs 2.81 ft/s 0.56 ft 0.042 1.8 Ibs/ft2 0.81 Ibs/ft2 2.22 STABLE D
Unvegetated
Underlying Straight 5.75 cfs 2.81 ft/s 0.56 ft 0.042 1.96 Ibs/ft2 0.54 Ibs/ft2 3.63 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 5.75 cfs 2.24 ft/s 0.65 ft 0.057 4 Ibs/ft2 0.95 Ibs/ft2 4.21 STABLE
Vegetation
Underlying Straight 5.75 cfs 2.24 ft/s 0.65 ft 0.057 4 Ibs/ft2 0.61 Ibs/ft2 6.52 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234675/show 1 /1

11/16/22, 4:38 PM
NORTH
AMERICAN
GREEN
CHANNEL ANALYSIS
>> > VCD 17
Name
VCD 17
Discharge
13.42
Channel Slope
0.05
Channel Bottom Width
2
Left Side Slope
3
Right Side Slope
3
Low Flow Liner
Retardence Class
B 12-24 in
Vegetation Type
Mix (Sod and Bunch)
Vegetation Density
Good 65-79%
Soil Type
Clay Loam (CL)
C125
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
C125 Straight 13.42 cfs 5.79 ft/s 0.61 ft 0.031 2.3 Ibs/ft2 1.89 Ibs/ft2 1.22 STABLE D
Unvegetated
Underlying Straight 13.42 cfs 5.79 ft/s 0.61 ft 0.031 2.51 Ibs/ft2 1.24 Ibs/ft2 2.02 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 13.42 cfs 3.13 ft/s 0.91 ft 0.072 4 Ibs/ft2 2.83 Ibs/ft2 1.41 STABLE
Vegetation
Underlying Straight 13.42 cfs 3.13 ft/s 0.91 ft 0.072 4 Ibs/ft2 1.73 Ibs/ft2 2.32 STABLE
Substrate
hftps://ecmds.com/project/154418/channel-analysis/234678/show 1 /1

Calculate Q10 for roadside ditches - 5 min. Tc
RS-1
C =
0.6
i 10 =
6.88
D.A. =
0.15
Q10 =
0.62 cfs
RS-2
C =
0.6
i 10 =
6.88
D.A. =
0.19
Q10 =
0.78 cfs
RS-3
C =
0.6
i 10 =
6.88
D.A. =
0.12
Q10 =
0.50 cfs
RS-4
C =
0.6
i 10 =
6.88
D.A. =
0.11
Q10 =
0.45 cfs
RS-5
C =
0.6
i 10 =
6.88
D.A. =
0.11
Q10 =
0.45 cfs
RS-6
C =
0.6
i 10 =
6.88
D.A. =
0.07
Q10 =
0.29 cfs
RS-7
C =
0.6
i 10 =
6.88
D.A. =
0.14
Q10 =
0.58 cfs
RS-8
C =
0.6
i 10 =
6.88
D.A. =
0.2
Q10 =
0.83 cfs
RS-9
C =
0.6
i 10 =
6.88
D.A. =
0.43
Q10 =
1.78 cfs

RS-10
c =
0.6
i 10 =
6.88
D.A. =
0.12
Q10 =
0.50 cfs
RS-11
c =
0.6
i 10 =
6.88
D.A. =
0.24
Q10 =
0.99 cfs
RS-12
c =
0.6
i 10 =
6.88
D.A. =
0.26
Q10 =
1.07 cfs
RS-13
c =
0.6
i 10 =
6.88
D.A. =
0.09
Q10 =
0.37 cfs
RS-14
c =
0.6
i 10 =
6.88
D.A. =
2.54
Q10 =
10.49 cfs
RS-15
c =
0.6
i 10 =
6.88
D.A. =
0.32
Q10 =
1.32 cfs
RS-16
c =
0.6
i 10 =
6.88
D.A. =
0.43
Q10 =
1.78 cfs
RS-17
c =
0.6
i 10 =
6.88
D.A. =
0.42
Q10 =
1.73 cfs
RS-18
c =
0.6
i 10 =
6.88
D.A. =
0.86
Q10 =
3.55 cfs
RS-19
c =
0.6
i 10 =
6.88
D.A. =
1.21
Q10 =
4.99 cfs

RS-20
C =
0.6
i 10 =
6.88
D.A. =
0.15
Q10 =
0.62 cfs
RS-21
C =
0.6
i 10 =
6.88
D.A. =
0.19
Q10 =
0.78 cfs
RS-22
C =
0.6
i 10 =
6.88
D.A. =
0.32
Q10 =
1.32 cfs
RS-23
C =
0.6
i 10 =
6.88
D.A. =
0.33
Q10 =
1.36 cfs
RS-24
C =
0.6
i 10 =
6.88
D.A. =
0.48
Q10 =
1.98 cfs
RS-25
C =
0.6
i 10 =
6.88
D.A. =
0.26
Q10 =
1.07 cfs
RS-26
C =
0.6
i 10 =
6.88
D.A. =
0.78
Q10 =
3.22 cfs
RS-27
C =
0.6
i 10 =
6.88
D.A. =
0.38
Q10 =
1.57 cfs
RS-28
C =
0.6
i 10 =
6.88
D.A. =
0.18
Q10 =
0.74 cfs

RS-29
c =
0.6
i 10 =
6.88
D.A. =
0.77
Q10 =
3.18 cfs
RS-30
c =
0.6
i 10 =
6.88
D.A. =
0.82
Q10 =
3.38 cfs
RS-31
c =
0.6
i 10 =
6.88
D.A. =
1.46
Q10 =
6.03 cfs
RS-32
c =
0.6
i 10 =
6.88
D.A. =
0.83
Q10 =
3.43 cfs
RS-33
c =
0.6
i 10 =
6.88
D.A. =
0.58
Q10 =
2.39 cfs
RS-34
c =
0.6
i 10 =
6.88
D.A. =
0.65
Q10 =
2.68 cfs
RS-35
c =
0.6
i 10 =
6.88
D.A. =
0.43
Q10 =
1.78 cfs

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-1
Name
RS-1
Discharge
0.62
Channel Slope
0.0508
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.62 cfs 1.41 ft/s 0.17 ft 0.065 4 Ibs/ft2 0.55 Ibs/ft2 7.25 STABLE
Vegetation
Underlying Straight 0.62 cfs 1.41 ft/s 0.17 ft 0.065 4 Ibs/ft2 0.45 Ibs/ft2 8.91 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-2
Name
RS-2
Discharge
0.78
Channel Slope
0.0365
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.78 cfs 1.31 ft/s 0.22 ft 0.068 4 Ibs/ft2 0.51 Ibs/ft2 7.86 STABLE
Vegetation
Underlying Straight 0.78 cfs 1.31 ft/s 0.22 ft 0.068 4 Ibs/ft2 0.4 Ibs/ft2 10.05 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-3
Name
RS-3
Discharge
0.5
Channel Slope
0.0417
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.5 cfs 1.16 ft/s 0.17 ft
Vegetation
Underlying Straight 0.5 cfs 1.16 ft/s 0.17 ft
Substrate
0.07 4lbs/ft2 0.45lbs/ft2 8.98 STABLE
0.07 4lbs/ft2 0.36lbs/ft2 11.01 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-4
Name
RS-4
Discharge
0.45
Channel Slope
0.0214
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.45 cfs 0.79 ft/s 0.22 ft
Vegetation
Underlying Straight 0.45 cfs 0.79 ft/s 0.22 ft
Substrate
0.085 4lbs/ft2 0.29lbs/ft2 13.87 STABLE
0.085 4lbs/ft2 0.23lbs/ft2 17.63 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-5
Name
RS-5
Discharge
0.45
Channel Slope
0.0263
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.45 cfs 0.88 ft/s 0.2 ft
Vegetation
Underlying Straight 0.45 cfs 0.88 ft/s 0.2 ft
Substrate
0.08 4lbs/ft2 0.32lbs/ft2 12.31 STABLE
0.08 4lbs/ft2 0.26lbs/ft2 15.43 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-8
Name
RS-8
Discharge
0.83
Channel Slope
0.0326
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.83 cfs 1.27 ft/s 0.24 ft
Vegetation
Underlying Straight 0.83 cfs 1.27 ft/s 0.24 ft
Substrate
0.069 4lbs/ft2 0.49lbs/ft2 8.16 STABLE
0.069 4lbs/ft2 0.38lbs/ft2 10.56 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-9
Name
RS-9
Discharge
1.78
Channel Slope
0.0432
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.78 cfs 2.01 ft/s 0.3 ft 0.057 4 Ibs/ft2 0.82 Ibs/ft2 4.87 STABLE
Vegetation
Underlying Straight 1.78 cfs 2.01 ft/s 0.3 ft 0.057 4 Ibs/ft2 0.61 Ibs/ft2 6.57 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-10
Name
RS-10
Discharge
0.5
Channel Slope
0.0273
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.5 cfs 0.93 ft/s 0.2 ft
Vegetation
Underlying Straight 0.5 cfs 0.93 ft/s 0.2 ft
Substrate
0.078 4lbs/ft2 0.35lbs/ft2 11.46 STABLE
0.078 4lbs/ft2 0.28lbs/ft2 14.45 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-11
Name
RS-11
Discharge
0.99
Channel Slope
0.0709
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.99 cfs 2.04 ft/s
Vegetation
Underlying Straight 0.99 cfs 2.04 ft/s
Substrate
0.19 ft 0.055
0.19 ft 0.055
4lbs/ft2 0.83lbs/ft2
4lbs/ft2 0.67lbs/ft2
4.8 STABLE --
5.97 STABLE --

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-12
Name
RS-12
Discharge
1.07
Channel Slope
0.0709
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.07 cfs 2.11 ft/s 0.2 ft 0.054 4 Ibs/ft2 0.87 Ibs/ft2 4.62 STABLE
Vegetation
Underlying Straight 1.07 cfs 2.11 ft/s 0.2 ft 0.054 4 Ibs/ft2 0.69 Ibs/ft2 5.78 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-13
Name
RS-13
Discharge
0.37
Channel Slope
0.0308
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.37 cfs 0.87 ft/s 0.17 ft
Vegetation
Underlying Straight 0.37 cfs 0.87 ft/s 0.17 ft
Substrate
0.08 4lbs/ft2 0.32lbs/ft2 12.32 STABLE
0.08 4lbs/ft2 0.27lbs/ft2 15.08 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-14
Name
RS-14
Discharge
10.49
Channel Slope
0.0318
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 10.49 cfs 3.32 ft/s 0.74 ft 0.048 4 Ibs/ft2 1.48 Ibs/ft2 2.71 STABLE
Vegetation
Underlying Straight 10.49 cfs 3.32 ft/s 0.74 ft 0.048 3.63 Ibs/ft2 0.93 Ibs/ft2 3.9 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-15
Name
RS-15
Discharge
1.32
Channel Slope
0.0422
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.32 cfs 1.76 ft/s 0.27 ft 0.06 4 Ibs/ft2 0.71 Ibs/ft2 5.67 STABLE
Vegetation
Underlying Straight 1.32 cfs 1.76 ft/s 0.27 ft 0.06 4 Ibs/ft2 0.54 Ibs/ft2 7.47 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-16
Name
RS-16
Discharge
1.78
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.78 cfs 1.69 ft/s 0.35 ft 0.062 4 Ibs/ft2 0.68 Ibs/ft2 5.89 STABLE
Vegetation
Underlying Straight 1.78 cfs 1.69 ft/s 0.35 ft 0.062 4 Ibs/ft2 0.49 Ibs/ft2 8.12 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-17
Name
RS-17
Discharge
1.73
Channel Slope
0.0264
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.73 cfs 1.52 ft/s 0.37 ft 0.065 4 Ibs/ft2 0.61 Ibs/ft2 6.61 STABLE
Vegetation
Underlying Straight 1.73 cfs 1.52 ft/s 0.37 ft 0.065 4 Ibs/ft2 0.43 Ibs/ft2 9.21 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-18
Name
RS-18
Discharge
3.55
Channel Slope
0.0405
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 3.55 cfs 2.54 ft/s
Vegetation
Underlying Straight 3.55 cfs 2.54 ft/s
Substrate
0.43 ft 0.053
0.43 ft 0.053
4 Ibs/ft2 1.08 Ibs/ft2
4lbs/ft2 0.75lbs/ft2
3.71 STABLE --
5.32 STABLE --

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-19
Name
RS-19
Discharge
4.99
Channel Slope
0.0382
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 4.99 cfs 2.8 ft/s 0.51 ft 0.051
Vegetation
Underlying Straight 4.99 cfs 2.8 ft/s 0.51 ft 0.051
Substrate
4 Ibs/ft2 1.21 Ibs/ft2
4lbs/ft2 0.82lbs/ft2
3.31 STABLE --
4.9 STABLE --

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-20
Name
RS-20
Discharge
0.62
Channel Slope
0.0276
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.62 cfs 1.03 ft/s 0.23 ft
Vegetation
Underlying Straight 0.62 cfs 1.03 ft/s 0.23 ft
Substrate
0.076 4lbs/ft2 0.39lbs/ft2 10.31 STABLE
0.076 4lbs/ft2 0.3lbs/ft2 13.19 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-21
Name
RS-21
Discharge
0.78
Channel Slope
0.0333
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.78 cfs 1.25 ft/s 0.23 ft
Vegetation
Underlying Straight 0.78 cfs 1.25 ft/s 0.23 ft
Substrate
0.069 4lbs/ft2 0.48lbs/ft2 8.3 STABLE
0.069 4lbs/ft2 0.37lbs/ft2 10.68 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-22
Name
RS-22
Discharge
1.32
Channel Slope
0.0304
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.32 cfs 1.47 ft/s 0.31 ft 0.066 4 Ibs/ft2 0.58 Ibs/ft2 6.87 STABLE
Vegetation
Underlying Straight 1.32 cfs 1.47 ft/s 0.31 ft 0.066 4 Ibs/ft2 0.43 Ibs/ft2 9.27 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-23
Name
RS-23
Discharge
1.36
Channel Slope
0.036
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.36 cfs 1.63 ft/s 0.29 ft 0.062 4 Ibs/ft2 0.65 Ibs/ft2 6.14 STABLE
Vegetation
Underlying Straight 1.36 cfs 1.63 ft/s 0.29 ft 0.062 4 Ibs/ft2 0.49 Ibs/ft2 8.2 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-24
Name
RS-24
Discharge
1.98
Channel Slope
0.0426
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.98 cfs 2.08 ft/s 0.32 ft 0.056 4 Ibs/ft2 0.85 Ibs/ft2 4.68 STABLE
Vegetation
Underlying Straight 1.98 cfs 2.08 ft/s 0.32 ft 0.056 4 Ibs/ft2 0.63 Ibs/ft2 6.37 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-25
Name
RS-25
Discharge
1.07
Channel Slope
0.0288
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.07 cfs 1.31 ft/s 0.28 ft
Vegetation
Underlying Straight 1.07 cfs 1.31 ft/s 0.28 ft
Substrate
0.069 4lbs/ft2 0.51lbs/ft2 7.82 STABLE
0.069 4lbs/ft2 0.38lbs/ft2 10.41 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-27
Name
RS-27
Discharge
1.57
Channel Slope
0.0193
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.57 cfs 1.23 ft/s 0.4 ft
Vegetation
Underlying Straight 1.57 cfs 1.23 ft/s 0.4 ft
Substrate
0.072 4lbs/ft2 0.48lbs/ft2 8.32 STABLE
0.072 4lbs/ft2 0.34lbs/ft2 11.78 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-28
Name
RS-28
Discharge
0.74
Channel Slope
0.0323
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 Fair 50-64%
Soil Type Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 0.74 cfs 1.2 ft/s 0.23 ft
Vegetation
Underlying Straight 0.74 cfs 1.2 ft/s 0.23 ft
Substrate
0.071 4lbs/ft2 0.46lbs/ft2 8.66 STABLE
0.071 4lbs/ft2 0.36lbs/ft2 11.12 STABLE

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-29
Name
RS-29
Discharge
3.18
Channel Slope
0.0366
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 3.18 cfs 2.3 ft/s 0.42 ft 0.055 4 Ibs/ft2 0.96 Ibs/ft2 4.15 STABLE
Vegetation
Underlying Straight 3.18 cfs 2.3 ft/s 0.42 ft 0.055 4 Ibs/ft2 0.67 Ibs/ft2 5.93 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-30
Name
RS-30
Discharge
3.38
Channel Slope
0.0302
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 3.38 cfs 2.11 ft/s 0.47 ft 0.057 4 Ibs/ft2 0.88 Ibs/ft2 4.53 STABLE
Vegetation
Underlying Straight 3.38 cfs 2.11 ft/s 0.47 ft 0.057 4 Ibs/ft2 0.61 Ibs/ft2 6.61 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-31
Name
RS-31
Discharge
6.03
Channel Slope
0.0265
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 6.03 cfs 2.44 ft/s
Vegetation
Underlying Straight 6.03 cfs 2.44 ft/s
Substrate
0.63 ft 0.055
0.63 ft 0.055
4 Ibs/ft2 1.05 Ibs/ft2
4lbs/ft2 0.68lbs/ft2
3.82 STABLE --
5.89 STABLE --

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-32
Name
RS-32
Discharge
3.43
Channel Slope
0.0426
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 3.43 cfs 2.58 ft/s
Vegetation
Underlying Straight 3.43 cfs 2.58 ft/s
Substrate
0.41 ft 0.052
0.41 ft 0.052
4 Ibs/ft2 1.09 Ibs/ft2
4lbs/ft2 0.77lbs/ft2
3.66 STABLE --
5.2 STABLE --

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-33
Name
RS-33
Discharge
2.39
Channel Slope
0.0243
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 2.39 cfs 1.64 ft/s 0.44 ft 0.064 4 Ibs/ft2 0.66 Ibs/ft2 6.02 STABLE
Vegetation
Underlying Straight 2.39 cfs 1.64 ft/s 0.44 ft 0.064 4 Ibs/ft2 0.46 Ibs/ft2 8.66 STABLE
Substrate

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-34
Name
RS-34
Discharge
2.68
Channel Slope
0.0241
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 2.68 cfs 1.71 ft/s
Vegetation
Underlying Straight 2.68 cfs 1.71 ft/s
Substrate
0.46 ft 0.063 4 Ibs/ft2 0.7 Ibs/ft2 5.75 STABLE --
0.46 ft 0.063 4 Ibs/ft2 0.48 Ibs/ft2 8.36 STABLE --

NORTH
AMERICAN
GREEN
CHANNELANALYSIS
> > > RS-35
Name
RS-35
Discharge
1.78
Channel Slope
0.0439
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
Fair 50-64%
Soil Type
Clay Loam (CL)
Unreinforced Vegetation
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
Factor
Pattern
Unreinforced Straight 1.78 cfs 2.02 ft/s 0.3 ft 0.057 4 Ibs/ft2 0.83 Ibs/ft2 4.84 STABLE
Vegetation
Underlying Straight 1.78 cfs 2.02 ft/s 0.3 ft 0.057 4 Ibs/ft2 0.61 Ibs/ft2 6.51 STABLE
Substrate