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,.M mau -omo cem=m i c.n,.~n
24
w/o Freeboard w/ Freeboard
Design Discharge: 40.71 crs
Depth: 0.30 ft 1.30 ft
Top Width: 13.18 R 17.18 R
Velocity*:
X-Section Area; 3.73 sq R
Hydraulic Radius; 0.280 R
Froutle Number*:
Manning's n*:
Omin; 2.00 in
D60: 6.00 in
Dmax: 7.50 in
Velocity and Manning's n calculations may not apply for this method.
Structure #34 (t/eoetated Channell
SEC. 21 COLLECTOR DITCH 1
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome

Leh
Bottom
Right
Freeboard Freeboard
Retardance I Freeboard
Limiting
Sideslope
Width (ft) Rati Sideslope
Ra[io Slope (%)
Classes Depth {ft) %of Depth Mult. x Velocity
(fps)
o (VxD)
12.00 2.0:1 2.0:1 0.5 D, B 1.00 5.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class 8 w/
Freeboard
Design Discharge: 6.19 ds 8.19 ds
Depth: 0.61 R 1.61 R 1.21 R 2.21 R
Top Width: 14.45 ft 18.45 ft 16.84 R 20.84 ft
Velodty: 1.01 fps 0,47 fps
X-Section Area: 8.09 sq R 17.47 sq ft
Hydraulic Ratlius: 0.549 R 1.003 ft
Froutle Number: 0.24 0.08
Roughness Coeffcient: 0.0698 0.2249
Structure #33 (tegetated ChanneQ
SEC. 2i COLLECTOR DITCH 1
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Filename: STSec2l Hundred24.070807.sc4 Printed 01-OB-2007
Exh. 7-20B-78 Revision Date: 1/05/07
Revison No.: PR-02

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