2016-08-08_PERMIT FILE - C1981019 ‎(47)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 8/8/2016
• Doc Name: Perimeter Area Sediment Control
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 23 Part H
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Structure Detail;
Structure #3 (Null)
dwnstrm edge of generic disturbed area
Structure #Z (Grass Filter)
nat7 veg area dnstrm of disturbance
Grass Filter Inputs:
Stiffness
0.0023 ac -ft
Roughness Grass Height Hydraulic Infiltration Factor
Filter Length Filter Width Filter Slope
Coefficient (in) Spacing (in) Rate (iph)
(ft) (ft) (%)
(N -sq m)
1.0367 fps
0.0080 4.0 2.00 0.20 20.000
20.0 100.0 25.0
Grass Filter Results:
Total Infiltration Volume:
0.0023 ac -ft
Filter Infiltration Rate:
0.0093 cfs
Peak Flow Depth:
0.018 in
Critical Prone Velocity:
1.0367 fps
Wedge Location:
0.12 ft
Sediment Depth in Zone D:
0.0257 in
Trap Efficiency:
93.3 %
Structure #1 (Null)
Outlet null
Filename EXH H Generic GF 100 x 100 pad.sc4 Printed 10-20-2015
Exh. 7-23H-22 Revision Date: 11/09/2015
Revision No.: PR -04