PERMFILE131331

• Permit No: C1981014
• IBM Index Class Name: Permit File
• Doc Date: 6/3/2002
• Section_Exhibit Name: Exhibit 19 Attachment 2 SAE Documentation
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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6
Structure Detai/;
Structure #1 (Silt Fence)
Straw Bales
Silt Fence Inputs:
Fence Flow yyidth along Land Slope Tie-back
Rate Height (ft)
(gpm/sq ft} contour (ft) (%) distance (ft)
14.0 6.0 2.0 10.00 20.0
*SedimentStorage; 0.00 ac-ft
*No sediment capacity defined
Silt Fence Results:
Peak Fence Stage: 1.42 ft
Peak Water Stage: 1.42 ft
Dewater Time: 0.50 days
Trap Efficiency: 81.71
Dewatedng time is calculated from peak stage to lowest spillway
Stage-Capacity-Discharge Table

Fence Stage
(ft)
Wa[er Stage
(ft)
Area
(ac)
Capacity
(ao-ft)
Discharge
(cfs) Dewater
Time
(hrs)
0.00 0.00 0.000 0.000 0.000 Top of Sediment
0.10 0.10 0.000 0.000 0.022 4.95
0.20 0.20 0.000 0.000 0.050 4.50
0.30 0.30 0.000 0.000 0.084 1.50
0.40 0.40 0.001 0.000 0.125 0.45
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0.60 0.60 0.001 0.000 0.225 0.45
0.70 0.70 0.001 0.000 0.284
0.80 0.80 0.001 0.000 0.349
0.90 0.90 0.001 0.001 0.421
1.00 1.00 0.001 0.001 0.499
1.10 1.10 0.002 0.001 0.583
1.20 1.20 0.002 0.001 0.674
1.30 1.30 0.002 0.001 0.77D
1.40 1.40 0.002 0.001 0.873
1.42 1.42 0.002 0.001 0.895 0.00 Peak Stage
I.sO 1.50 0.002 0.002 0.983
1.60 1.60 0.002 0.002 1.098
Filename: YardSaeStrawBaleRevl,sc4 Printed 05-13-2002