2012-06-08_PERMIT FILE - C2009087 ‎(12)‎

• Permit No: C2009087
• IBM Index Class Name: Permit File
• Doc Date: 6/8/2012
• Doc Name: Lower Sump Design 10yr/24hr Storm Event
• Section_Exhibit Name: Exhibit 2.05.3-E2 Appendix 2.05.3-E2.E Addendument 2.05.3-E2.E-1
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #I2 (Riprap Channel,
Ditch PM -6 (Lower end)
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
' Freeboard
Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft)
1.74 cfs
Ratio Ratio
Depth (ft) % of Depth (VxD)
2.00 3.0:1 3.0:1 25.0 0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #13 (Erodible Channel
Ditch PM -2 (Upper)
Triangular Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope ( %) Manning's n ! Mult. x Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
3.0:1 3.0:1 10.0 0.0300 0.30 5.0
Erodible Channel Results:
54
Filename: Lower Sump 1 0yr ver2.sc4 Printed 04 -06 -2012
w/o Freeboard w/ Freeboard
Design Discharge:
1.74 cfs
Depth:
0.16 ft 0.46 ft
Top Width:
2.98 ft 4.78 ft
Velocity:
4.25 fps
X- Section Area:
0.41 sq ft
Hydraulic Radius:
0.135 ft
Froude Number:
2.03
Manning's n:
0.0460
Dmin:
1.00 in
D50:
1.50 in
Dmax:
3.00 in
Structure #13 (Erodible Channel
Ditch PM -2 (Upper)
Triangular Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope ( %) Manning's n ! Mult. x Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
3.0:1 3.0:1 10.0 0.0300 0.30 5.0
Erodible Channel Results:
54
Filename: Lower Sump 1 0yr ver2.sc4 Printed 04 -06 -2012