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
Trapezoidal Riprap Channel Inputs:
Material: R~raa
Left
Bottom Right Freeboard Freeboard Freeboard
Sideslope
Width (ft) Sideslope Slope (%) Mult. x
Depth (ft) % of Depth
Ratio Ratio (VxD)
12.00 2.0:1 2.0:1 18.8 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 96.80 ds
Depth: 0.27 ft 1.27 ft
Top Width: 13.10 ft 17.10 R
Velocity*:
X-Section Area: 3.94 sq R
Hydraulic Radius: 0.260 R
Froude Number*:
Manning's n*:
Dmin: 3.00 in
D60: 9.00 in
Dmax: 11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #29 (Null)
SEC. 11 NULL 7
Structure #30 (RiDrao Channel)
SEC. 21 DITCH 19
Trapezoidal Riprap Channel Inputs:
Material: Riprap
LeR
Bottom Righ[ Freeboard Freeboard Freeboard
Sideslope
Width (ft) Sideslope Slope (%) Mult. z
Rato Ratio Depth (ft) % of Depth
(VxD)
12.00 2.0:1 2.0:1 6.2 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
38
Filename: STSec21Ten24.030807.sc4 Printed 03-09-2007
Exil. 7-20B-42 Revision Date: 3/12/07
Revision No.: PR-02
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