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
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33
w/o Freeboard w/ Freeboard
Froude Number*:
Manning's n*:
Dmin: 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/e4etated Channe/)
SEC, 11 COLLECTOR DITCH 2
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
•
Lek
Bottom Right
Retardance Freeboard Freeboard Freeboard Limiting
Width (R) Sideslope Sideslope Slope (Wo) Classes o
Depth (ft) /o of Depth Mult. z Velocity
f
Ratio Ratio (VxD) ps)
(
12.00 2.0:1 2.0:1 0.5 D, B 1.00 S.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 4.63 cfs 9.63 ds
Depth: 0.48 k 1.48 ft 1.02 ft 2.02 ft
Top Width: 13.92 R 17.92 k 16.08 R 20.08 ft
Velocity: 0.74 fps 0.32 fps
X-Section Area: 6.23 sq R 14.32 sq R
Hydraulic Radius: 0.941 R D.866 ft
Froude Number: 0.20 0.06
Roughness Coefficient: 0.0820 0.2958
Structure #33 (t/eaetated Channe/1
SEC. 11 COLLECTOR DITCH 1
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
•
Filename: STSec21Ten24.030807,sc4
Exh.7-20B-37
Printed 03-09-2007
Revision Date: 3/12/07
RevisionNo.: PR-02