2020-06-16_PERMIT FILE - C1981035 ‎(28)‎

• Permit No: C1981035
• IBM Index Class Name: Permit File
• Doc Date: 6/16/2020
• Doc Name: Appendix
• Section_Exhibit Name: KII Appendix 11‎(1)‎ Hydrology Analysis June 1, 2020
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Material: Graded loam to cobbles when noncolloidal
Bottom Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope(%) Manning's n Mult.x Velocity
Width (ft) Ratio Ratio Depth (ft) %of Depth (VxD) (fps)
8.30 1.3:1 1.3:1 6.6 0.0300 0.30 5.0
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 9.30 cfs
Depth: 0.23 ft 0.53 ft
Top Width: 8.90 ft 9.68 ft
Velocity: 4.66 fps
X-Section Area: 2.00 sq ft
Hydraulic Radius: 0.221 ft
Froude Number: 1.73
Structure #20(Culvert)
Culvert C-12 Flows into Ditch 4
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope(%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
74.00 4.69 0.0150 3.00 0.00 0.90
Culvert Results:
Design Discharge = 9.30 cfs
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #21 (Erodible Channel)
Ditch ID-4(Includes Basin H) flows into Culvert 6
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shingles
Bottom Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope(%) Manning's n Mult.x Velocity
Width(ft) Ratio Ratio Depth (ft) %of Depth (VxD) (fps)
4.00 1.8:1 1.8:1 5.3 0.0350 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 10.83 cfs
Depth: 0.45 ft 0.75 ft
Filename: Disturbed Area Modified for King III Portals JR.sc4 Printed 04-29-2020