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
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Structure Detail;
Structure #28 L iprap Channel,
529 A Trib feeder to Sec 29 collector
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
a Sideslo a Slope Width (ft) Sideslo p p p e ( )
Depth (ft) of Depth Mult. x
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 16.0
1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure #27 (Riprap Channel)
Sec 29 (contour) collector ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Design Discharge:
10.20 cfs
Depth:
0.09 ft 1.09 ft
Top Width:
12.35 ft 16.35 ft
Velocity*:
X-Section Area:
1.05 sq ft
Hydraulic Radius:
0.085 ft
Froude Number *:
Manning's n *:
Dmin:
2.00 in
D50:
6.00 in
Dmax:
7.50 in
Velocity and Manning's n calculations may not apply for this method.
Structure #27 (Riprap Channel)
Sec 29 (contour) collector ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslo a Sideslo a Sloe
Width (ft) p ( )
Depth (ft) % of Depth
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 0.0
1.00
• Riprap Channel Results:
Simons /OSM Method -Mild Slope Design
rA
Filename: Sec 28 100 24.sc4 Printed 12 -08 -2010
Exh. 7- 20A -46 Revision Date: 12/31/10
Revision No.: TR -81