2011-06-29_PERMIT FILE - C1981019A ‎(16)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• Doc Name: Section 21 Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part B -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
r~~,m,.n~ruoa-orm a~..,vi~ ~ c,.n,.nn
~~
w/o Freeboard w/ Freeboard
Top Width: 12.L8 R 16.18 ft
Velocity*:
X-Section Area: 0.55 sq ft
Hydraulic Radius: 0.045 R
Froude Number*:
Manning's n*:
Dmin: 3.00 in ''
D60: 9.00 in
Dmaz: 11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #2Z (tegetated Channel)
SEC. 21 DITCH 14
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Left
Bottom Right Freeboard Freeboard Freeboard
Retardance Limiting
Sideslope
Width (R) Ratio Sideslope Slope (%)
i Mult. x
Ratio Classes Depth (R) %of Depth Velocity
S)
(f
(VZD) P
12.00 2.0:1 2.0:1 23.1 D, B 1.00 3.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
CWss B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 0.85 cfs 0.85 cfs
Depth: 0.07 R 1.07 R 0.19 R 1.19 ft
Top Width: 12.30 R 16.30 R 12.76 ft 16.76 ft
Velocity: 0.95 fps 0.36 fps
X-Section Area: 0.90 sq R 2.34 sq R
Hydraulic Radius: 0.073 R 0.182 ft
Froude Number: 0.62 0.15
Roughness Ccefflcient: 0.1320 0.6312
Structure #24 (Null1
SEC. 11 NULL S
Structure #25 (Riprap Channel1
SEC. 21 DITCH 16
Trapezoidal Riprap Channel Inputs:
Filename: STSec2l Hundred24.010807.sc4 Printed Oi-OB-2007
Exh. 7-20B-64 Revision Date: 1/05/07
Revison No.: PR-02
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