PERMFILE110281

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 5/4/2007
• Doc Name: Section 28 Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part A -ST
• Media Type: D
• Archive: Yes

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SEDCAD 4 for Windows
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17
Structure #Z (Riprap Channel)
SEC. Z8 DITCH S
Trapezoidal Riprap Channel Inputs:
Material: Riprap
LeR Right Freeboard Freeboard Freeboartl
Bottom Sideslope Sideslope Slope (°/) Mult. x
Width {R) Ratio Ratio Depth (R) °k of Depth (VxD)
12.00 3.0:1 3.0:1 20.0 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
•
w/o Freeboard w/ Freeboard
Design Discharge: 18.61 cfs
Depth: 0.12 R 1.12 R
Top Width: 12.73 ft 18.73 R
Velocity*:
X-Section Area: 1.50 sq ft
Hydraulic Radius: 0.117 R
Froude Number*:
Manning's n*:
Dmin: 3.00 in
D60: 9.00 in
Dmax: 11.25 in
Velocity and Manning's n nlculations may not apply for this method.
Structure #9 (Null)
SEC. Z8 NULL 2
Structure #10 (Riprap Channel)
SEC. Z8 DITCH 6
Trapezoidal Riprap Channel Inputs:
Material: Riprap

Bottom LeR Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%} Mult. x
Width (ft) Ratio Ratio Depth (R) % of Dep[h (VxD)
12.00 3.0:1 3.0:1 20.0 1.00
Riprap Channel Results:
•
Simons/OSM Method -Steep Slope Design
Filename: STSecZBHundred24.010B07.sc4
Each. 7-20A-61
Printetl 07 -OB-2007
Revision Date: 1/05/07
Revison No.: PR-02