2021-05-19_PERMIT FILE - C1981008 ‎(15)‎

• Permit No: C1981008
• IBM Index Class Name: Permit File
• Doc Date: 5/19/2021
• Doc Name: Stream Buffer Zones
• Section_Exhibit Name: Section 4.05.18
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure Detail;
Structure #1 (Grass Filter)
Ca/amity Draw Pump Station
Grass Filter Inputs:
Stiffness
0.0386 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)
0.8122 fps
0.0141 4.0 0.67 0.30 2.0001 25.0 200.0 4.0
Grass Filter Results:
Total Infiltration Volume:
0.0386 ac -ft
Filter Infiltration Rate:
0.0347 cfs
Peak Flow Depth:
0.163 in
Critical Prone Velocity:
0.8122 fps
Wedge Location:
0.44 ft
Sediment Depth in Zone D:
0.0203 in
Trap Efficiency:
89.7%
an
Filename: Calamity Draw Pump Station.sc4 Printed 04-14-2015
Section 4.05.18 Page 10 March 2015 (TR -68)