2020-07-01_PERMIT FILE - C1981019

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 7/1/2020
• Doc Name: Atttachment 1 to 12
• Section_Exhibit Name: Exhibit 07 Gossard Pond - 003A
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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7
C-5 Culvert
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
50.00 1.50 0.0150 1.00 0.00 0.9(
Culvert Results:
Design Discharge = 1.18 cfs
Minimum pipe diameter: 1 - 8 inch pipe(s) required
Structure #9 (Culvert
C-4 Culvert
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater () ft Loss Coef.
(ft) (Ke)
100.00 1.00 0.0150 2.00 0.00 0.9(
Culvert Results:
Design Discharge = 7.19 cfs
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #6 (Vegetated Channel
GD -2 Ditch
Triangular Vegetated Channel Inputs:
Material: Shales and hardpans
Left Right
9 Retardance
Freeboard Limiting
Freeboard Freeboard 9
Sideslope Sideslope Slope (%) Classes
Mult. x Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD) (fps)
2.0:1 2.0:1 4.5 D, B
6.0
Vegetated Channel Results:
Filename: Gossard Pond 100 YR Event w-100 GPM Inflow.sc4 Printed 04-28-2020
Stability Stability
Class D w/o Class D w/
Freeboard Freeboard
Capacity Capacity
Class B w/o Class B w/
Freeboard Freeboard
Design Discharge:
7.86 cfs
7.86 cfs
Depth:
1.02 ft
1.50 ft
Top Width:
4.08 ft
6.01 ft
Velocity:
3.78 fps
1.74 fps
X -Section Area:
2.08 scl ft
4.52 scl ft
Hydraulic Radius:
0.456 ft
0.672 ft
Filename: Gossard Pond 100 YR Event w-100 GPM Inflow.sc4 Printed 04-28-2020