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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25

Bottom LeR Right
Retardance ~ Freeboard Freeboard Freeboard Limiting

Width (ft) Sideslope Sideslope i
Slope (%)
Classes Mult. x Velocity
Ratio Ratio Depth (R) %of Depth (VxD (fps)
12.00 2.0:1 2.0:1 0.5 D, B 1.00 5.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboartl Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 2.60 cfs 2.80 ds
Depth: 0.39 ft 1.39 R 0.88 R 1.88 R
Top Width: 13.56 R 17.56 R 15.51 ft 19.51 ft
Velocity: 0.56 fps 0.23 fps
X-Section Area: 4.97 sq ft 12.08 sq ft
Hydraulic Radius: 0.362 ft 0.758 ft
Froude Number: 0.16 0.05
Roughness Coefficient: 0.0947 0.3772
Structure #1 (t/eoetated Channel)
SEC. 2I DITCH 1
l J
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome

Bottom LeR Right Freeboard Freeboard Freeboard
Re[ardance Limiting

Width (ft) Sideslope Sideslope Slope (%)
Mult. x
Classes I Depth (R) % of Depth Velocity
f
Ratio Ratio (VxD) ps)
(
12.00 2.0:1 2.0:1 28.8 D, B 1.00 3.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class a w/
Freeboard
Design Discharge: 1.61 cfs 1.61 cfs
Depth: 0.09 R 1.09 R 0.21 R 1.21 ft
Top Width: 12.36 ft 16.36 R 12.85 R 16.85 R
Veladty: 1.45 fps 0.61 fps
X-Section Area: 1.11 sq R 2.65 sq R
Hydraulic Radius: 0.089 ft 0.204 R
Froude Number: 0.86 0.24
Roughness Cceffident: 0.1087 0.4526
•
Structure #2 (Pond1
SEC. ZZ SED TR,4P 1
Filename: STSec2lHundred24.010807.sc4
Exil. 7-20B-79
Printed 01-OB-2007
Revision Date: 1/05/07
Revison No.: PR-02