2011-05-17_PERMIT FILE - C1981019

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 5/17/2011
• Doc Name: Small Area Exemption, Topsoil Pile 15G and Associated Access Road
• Section_Exhibit Name: Exhibit 07 Item 17
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
!`nrominh1100R AMn Oamnh 1 Crhu,ah
11
Structure Detail:
Structure #1 (Check Damp
Gravel section through earthen berm
Check Dam Inputs:
Check Dam Results:
Height (ft) Porosity ( %) Slope ( %) Manning's n Sideslopes
:1)
(Z:1)
3.0 50.00 4.00 0.0400 3.0
Trap Efficiency: 30.54 %
Structure #3 (Grass Filter)
Grass filter DS of check dam
Grass Filter Inputs:
Stiffness
0.0454 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
0.0121 6.0 0.67 0.10 20.000
400.0 25.0 4.0
Grass Filter Results:
Structure #2 (Null
Null outlet
Total Infiltration Volume:
0.0454 ac -ft
Filter Infiltration Rate:
0.0231 cfs
Peak Flow Depth:
0.513 in
Critical Prone Velocity:
1.0367 fps
Wedge Location:
0.00 ft
Sediment Depth in Zone D:
0.0299 in
Trap Efficiency:
60.0%
Filename: Bond release check dam 10 24.sc4 Printed 02 -17 -2011
C
Exh. 7 -17 -27 Revision Date: 04/13/11
Revision No.: TR -90