2010-12-17_REVISION - C1981019 ‎(122)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 12/17/2010
• Doc Name: Exhibit 7 Item 23 Erosion and Sedimentation Control Plan
• Type & Sequence: PR3
• Email Name: JRS
• Media Type: D
• Archive: No

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SEDCAD 4 for Windows
r,..,,,,u,hf +aoa .oM7 0-1. t
36
w/o Freeboard w/ Freeboard
i
D50: 9.00 In
Dmax: 12.00 in
Structure #13 (Riprap Channel)
RD2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft)
Mutt. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
5.00 2.0:1 2,0:1 3.6
0.30
Riprap Channel Results:
to
PADER Method - Steep Slope Design
Structure #12 L 1 "n? Channel)
RD5
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Design Discharge:
507.78 cis
Depth:
3.77 ft 4.07 ft
Top Width:
20.08 ft 21.28 ft
Velocity:
10.74 fps
X- Section Area:
47.26 sq ft
Hydraulic Radius:
2.162 ft
Froude Number:
1.23
Manning's n:
0.0440
Dmin:
5.00 In
D50:
9.00 In
Dmax:
12.00 in
Structure #12 L 1 "n? Channel)
RD5
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sldeslope Slope (%)
Width (ft) Ratio Ratio
Mutt. x
Depth (ft) % of Depth
(VxD)
5.00 2.0:1 2.0:1 8.2
0.30
0 , i t Riprap Channel Results:
Filename: 10 -year Collom_Pond (With Riser).eo4 Pdnted 01 -22 -2009
t
Exh. 7- 23A -40 Revision Date: 12/15/10
Revision No.: PR -03