2011-06-29_PERMIT FILE - C1981019A ‎(20)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• 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
Trib B, reclaimed 1 -2 yrs
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
a Sideslo a Slope e
Width (ft) p ( )
Depth (ft) % of Depth
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 25.0
1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure #17 (Ripra� Channel)
Trib B, reclaimed 3 yrs
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Design Discharge:
12.01 cfs
Depth:
0.07 ft 1.07 ft
Top Width:
12.27 ft 16.27 ft
Velocity *:
X- Section Area:
0.81 sq ft
Hydraulic Radius:
0.066 ft
Froude Number *:
Manning's n *:
Dmin:
3.00 in
D50:
9.00 in
Dmax:
11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #17 (Ripra� Channel)
Trib B, reclaimed 3 yrs
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslo a Sideslo a Slope Width (ft) p p ( )
Depth (ft ) % of Depth Mult. x
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 25.0
1.00
Riprap Channel Results:
Filename: Sec 28 100 24.sc4
Simons /OSM Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 19.27 cfs
Depth: 0.10 ft 1.10 ft
Top Width: 12.40 ft 16.40 ft
Exh. 7- 20A -50
11
Printed 12 -08 -2010
Revision Date: 12/31/10
Revision No.: TR -81