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
fnm.nnF11°PP-'JlIM Pamule 1 CrM1vial~
12
w/o Freeboard w/ Freeboard ~~
X-Section Area: 0.94 sq ft
Hydraulic Radius: 0.076 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 #17 (Riprap Channell
SEC. ZI DITCH 11
Trapezoidal Riprap Channel Inputs:
Material: Riorao
Bottom left Righ[ Freeboard Freeboard Freeboard
Wid[h (ft) Sideslope Sideslope Slope (°/)
i
i Mult. x
Depth (ft) % of Depth
Ra[
o Rat
o (VxD)
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 DisUarge: 13.06 ds
Depth: 0.11 ft 1.11 ft
Top Width: 12.44 ft 16.44 ft
Velocity*:
X-SeQion Area: 1.33 sq ft
Hydraulic Radius: 0.107 R
Froude Number*:
Manninq's n*:
Dmin: 2.00 in
D60: 6.00 in
Dmax: 7.50 in
Velocity and Manninq's n calculations may not apply far this method.
Structure #14 (2%OrdD Channel
SEC. 11 DITCH 9
Trapezoidal Riprap Channel Inputs:
Material: Riorao
Filename: STSec2t Hundred24.OtOB07.sc4 Printetl Ot-08-2007
Exh. 7-20B-66 Revision Date: 1/05/07
Revison No.: PR-02

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