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
f:mm~lnhr m°a .9rn9 POmnla.l R~hwah
25
w/o Freeboard w/ Freeboard
Top Width: 12.78 ft 16.78 ft
Vel«ity*:
X-Section Area: 2.41 sq h
Hydraulic Radius: 0.187 f[
Froude Number*:
Manning's n*:
Dmin: 2.00 in
050: 6.00 in
Dmax: 7.50 in
Vel«ity and Manning's n calculations may not apply for this method.
Structure #IS (Nu//)
SEC. 21 NULL 3
Structure #19 /R%Drdp Chann
SEC. 21 DITCH 12
Trapezoidal Riprap Channel Inputs:
•
Left Right
Bottom Freeboard Freeboard Freeboard
Sideslo a Sideslo a Slo
Width (ft) p p ~ ( )
Mult. z
Ratio Ratio Depth (ft) % of De th
p (VxD)
12.00 2.0:1 2.0:1 21.6 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 24.61 cfs
Depth: 0.14 ft 1.14 f[
Top Width: 12.58 ft 16.58 ft
Vel«ity*:
X-Sec0on Area: 1.76 sq ft
Hydraulic Radius: 0.141 ft
Froude Number*:
Manning's n*:
Dmin: 3.00 in
050: 9.00 in
Dmax: 11.25 in
•
Vel«ity and Manning's n calculations may not apply for this method.
Material: Riprap
Filename: STSec21Ten24.030807.srA
Exh.7-20B-29
Printed 03-09-2007
Revision Date: 3/12/07
Revision No.: PR-02