PERMFILE114606

• Permit No: C1981041A
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Doc Name: Final Reclamation Drainage Design
• Section_Exhibit Name: Tab 14 Appendix 14-6
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Civil Software Design
6
Structure Detai/:
Silt Fence Inputs:
Fence Flow yyidth along Land Slope Te-back
(gpm/sq R) contour (R) Height (R) (%) distance (ft)
10.0 40.0 2.5 6.90 36.2
*sediment storage: 0.01 ac-R
*NO sediment capacity defined
Silt Fence Results:
Peak Fence Stage: 0.84 R
Peak Water Stage: 0.64 R
Dewater Time: 0.50 days
Trap Efficiency: 74.93
Dewatering time is calculated from peak stage to lowest spil/way
Stage-Capacity-Discharge Table
Fence Stage

(ft) Water Stage

(R) Area

(ac) Capacity

(at-R) Discharge

(cfs) Dewater
Tme
(hrs)
0.00 0.00 0.000 0.000 0.000 Top of Sediment
0.10 0.10 0.001 0.000 0.092 10.45
0.20 0.20 0.003 0.000 0.191 1.00
0.30 0.30 0.004 0.001 0.296 0.35
0.40 0.40 0.005 0.001 0.408 0.05
0.50 0.50 0.007 0.002 0.526
D.60 0.60 0.008 O.OD2 0.651 0.05
0.70 0.70 0.009 0.003 0.782
0.80 0.80 0.011 0.004 0.920
0.84 0.84 0.011 0.005 0.971 0.00 Peak Stage
0.90 0.90 0.012 0.005 1.064
1.00 1.00 0.013 0.007 1.214
1.10 1.10 0.015 0.008 1.371
1.20 1.20 0.016 0.010 1.535
1.30 1.30 0.017 0.011 1.704
1.40 1.40 0.019 0.013 1.881
1.50 1.50 0.020 0.015 2.063
1.60 1.60 0.021 0.017 2.253
1.70 1.70 0.023 0.019 2.448
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Filename: PCC-RNSedFence.sc4
Printed 1 728-2000
14-6 -71 11 /00