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

C~
SEDCAD 4 for Windows
CnnwinFl ~CCC 41100 Pamela l Cn6u~ab
w/o Freeboard w/ Freeboard
Dmax: 7.50 in
Velocity and Mannmg's n calculatons may not apply for this method.
Structure #10 (Nu/1
SEC. 21 NULL 1
Structure #11 (Riprap Channel)
SEC. 21 DITCH 7
Trapezoidal Riprap Channel Inputs:
Material: Riorap
Bottom leR Right Freeboard Freeboard Freeboard
Sideslope
Width (ft) R Sideslope Slope (/o
~
Depth (ft) % of Depth
Mult. x
ado Ratio (VxD)
12.00 2.0:1 2.0;1 20.6 1.00
Riprap Channel Results:
r1
\J
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 22.14 cfis
Depth: 0.14 R 1.14 ft
Top Width: 12.55 ft 16.55 ft
velocity*:
X-Section Area: 1.69 sq ft
Hydraulic Radius: 0.134 R
Froude Number*:
Manning's n*:
Dmin: 3.00 in
D60: 9.00 in
Dmax: 11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #20 (Nub
SEC. 21 NULL 4
Structure #21 (Riprap Channel)
SEC. 21 DITCH 13
37
• Filename: STSec21Ten24.030807.sc4 Printed 03-09-2007
Exh. 7-20B-41 Revision Date: 3/12/07
Revision No.: PR-02