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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Material: Bare rock
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
1.0:1 1.0:1 28.0 0.0350
2.82 ft
Nonerodible Channel Results:
Structure #21 (Siprap Channel)
Sec 28 (contour) Collector Ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
28.19 cfs
Depth:
1.41 ft
Top Width:
2.82 ft
Velocity:
14.17 fps
X- Section Area:
1.99 sq ft
Hydraulic Radius:
0.499 ft
Froude Number:
2.97
Structure #21 (Siprap Channel)
Sec 28 (contour) Collector Ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft)
Mult. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 16.0
1.00
Riprap Channel Results:
Filename: Sec 28 1024.sc4
Simons /OSM Method - Steep Slope Design
Exh. 7- 20A -20
16
Printed 12 -08 -2010
Revision Date: 12/31/10
Revision No.: TR -81
w/o Freeboard w/ Freeboard
Design Discharge:
28.19 cfs
Depth:
0.20 ft 1.20 ft
Top Width:
12.79 ft 16.79 ft
Velocity*:
X- Section Area:
2.45 sq ft
Hydraulic Radius:
0.190 ft
Froude Number *:
Manning's n *:
Dmin:
2.00 in
D50:
6.00 in
Exh. 7- 20A -20
16
Printed 12 -08 -2010
Revision Date: 12/31/10
Revision No.: TR -81