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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Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome

Bottom Left Ri ht Freeboard
B Retardance Freeboard Freeboartl Limi[in
9
Width (ft) Sideslope
Ratio Sideslope Slope (°/) Classes Mult. x
Depth (Ft) %of Depth
Ratio Velocity
(fps)
i
(VzD)
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 B w/
Freeboard
Design Discharge: 9.25 cfs 9.25 cfs
Depth: 0.64 k 1.64 ff 1.26 R 2.26 k
Top Width: 14.58 ft 18.56 k 17.02 R 21.02 ft
Velocity: I.OB fps 0.51 fps
X-Secion Area: 8.56 sq ft 18.23 sq ff
Hydraulic Radius: 0.575 k 1.035 ft
Froude Number: 0.25 0.09
Roughness Coefficient: 0.0674 0.2122
Structure #35 (tegetated Channe/1
SEC. 21 COLLECTOR DITCH 3
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Lek
Bottom Right Freeboard Freeboard
Retardance Freeboard Limiting
Sideslope
Width (ff) Sideslope Slope (%)
Classes , Depth (k) %of Depth Mult. x Velocity
~
Ratio Ratio (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
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 12.78 crs 12.78 6s
Depth: 0.74 ff 1.74 ft 1.38 k 2.38 k
Top Width: 14.96 ft 18.96 k 17.54 k 21.54 ft
Velocity: 1.28 fps 0.63 fps
X-Section Area: 9.96 sq ft 20.44 sq ff
Hydraulic Radius: 0.651 R 1.124 k
Froude Number: 0.28 0.10
Roughness Coefficient: 0.0616 0.1820
Filename: STSec21 Huntlred24.010607.sc4 Printed 01 ~OB-2007
Each. 7-20B-72 Revision Date: 1/05/07
Revison No.: PR-02

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