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

I•
SEDCAD 4 for Windows
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13
LeR Right
Bottom Freeboard Freeboard Freeboard
5ideslo a Sideslo a Sloe
Width (ft) p p p (°)
Mull. x
°
Ratio Ratio De th ft
/ of De [h
p ( ) p (VxD)
12.00 2.0:1 2.0:1 11.7 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o freeboard w/ Freeboard
Design Discharge: 16.21 ds
Depth: 0.14 ft 1.14 ft
Top Width: 12.57 ft 16.57 ft
Velaity*:
X-Section Area: 1.76 sq R
Hydraulic Radius: 0.139 ft
Froude Number*:
Manning's n*:
Dmin: 2.00 in
D60: 6.00 in
Dmax: 7.50 in
Velocity and Manning's n calculations may no[ apply for this method.
•
Structure #38 (Vegetated Channell
SEC. ZI COLLECTOR DITCH 6
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Left Ri ht Freeboard Limitin
Bottom Sideslope Sideslope Slope (%) Retardance I Freeboard Freeboard Mult. x ~ Velocity
Width (ft) Ratio Ratio Classes ~ Dep[h (ft) °/ of Dep[h (VxD) (fps)
12.00 2.0:1 2.0:1 0.5 D, B 1.00 6.(
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: 8.04 cfs 8.04 cfs
Depth: 0.61 ft 1.61 ft 1.20 R 2.20 R
Top Width: 14.43 ft 18.43 ft 16.62 R 20.62 ft
Velocity; 1.00 fps 0.46 fps
X-Setion Area: 8.04 sq ft 17.35 sq R
Hydraulic Radius: 0.546 ft 0.998 R
Froude Number: 0.24 0.08
Roughness Cce~cient: 0.0701 0.2268
Filename: STSec21 Hundretl24.010807.srA
Exh.7-20B-67
Printed O1-OB-2007
Revision Date: 1/05/07
Revison No.: PR-02