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
CnnminM 10°41 -9M9 Pamala J CrAwah
Lek Right
Bottom Freeboard Freeboartl Freeboard
Sideslope Sideslope Slope (Mo}
Width (k) Mult. x
Depth (ft) %of Depth
Ratio Ratio (VzD)
12.00 2.0:1 2.0:1 14.9 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 2.22 cfis
Depth: 0.03 ft 1.03 ft
Top Width: 12.19 ft 16.19 k
vel«ity*:
X-Section Area: 0.92 sq R
Hydraulic Radius: 0.039 ft
Froude Number*:
Manning's n*:
Dmin: 2.00 in
D60: 6.00 in
Dmax: 7.50 in
Vel«ity and Manning's n cakuladons may not apply for this method.
Structure #14 (R%Drap Channel)
SEC. 21 DITCH 9
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bolcom left Right Freeboard Freeboard Freeboard
Sideslope
Width (R) Ratio Sideslope Slope (°h)
Ratio
Depth (ft) % of Depth Mult. x
(VxD)
lz.oo z.o:l z.o:l 11.7 l.oo
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 7.00 cfs
Depth: 0.08 k 1.08 ft
Top Width: 12.31 ft 16.31 ft
Vel«ity*:
X-Section Area: 0.93 sq k
20
Filename: STSec21Ten24.030807.sc4 Printed 03-09-2007
Exh. 7-20B-24 Revision Date: 3/12/07
Revision No.: PR-02
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