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
Cnnvrinh} 10°R _9M(1 Pamcla I Srhmmh
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #36 (Erodible Channel
Ditch CH -2
Trapezoidal Erodible Channel Inputs:
Material: Graded loam to cobbles when noncolloidal
Bottom Left Right Freeboard Freeboard Freeboard
Limiting
Width (ft) Si pe Si pe Slope ( %) Manning's n j Mult. x
V(fp
Ratio Ratio Depth (ft) % of Depth
(VxD)
0.13 ft 0.43 ft
4.00 3.0:1 3.0:1 16.0 0.0300 0.30
5.0
Erodible Channel Results:
Structure #31(Pond�
Pump Discharge (150 gpm)
Pond Inputs:
Pond Results:
Initial Pool Elev: 0.01 ft
Initial Pool: 0.00 ac -ft
*Sediment Storage: 0.00 ac -ft
Dead Space: 0.00%
*No sediment capacity defined
Peak Elevation:
w/o Freeboard w/ Freeboard
Design Discharge:
2.93 cfs
Depth:
0.13 ft 0.43 ft
Top Width:
4.81 ft 6.61 ft
Velocity:
4.90 fps
X- Section Area:
0.59 sq ft
Hydraulic Radius:
0.122 ft
Froude Number:
2.46
Structure #31(Pond�
Pump Discharge (150 gpm)
Pond Inputs:
Pond Results:
Initial Pool Elev: 0.01 ft
Initial Pool: 0.00 ac -ft
*Sediment Storage: 0.00 ac -ft
Dead Space: 0.00%
*No sediment capacity defined
Peak Elevation:
0.50 ft
H'graph Detention Time:
12.66 hrs
Pond Model:
CSTRS
Dewater Time:
2.18 days
Trap Efficiency:
0.00%
45
Dewatering time is calculated from peak stage to lowest spillway
Filename: Lower Sump 10yr ver2.sc4 Printed 04 -06 -2012