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

•
SEDCAD 4 for Windows
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27
Material: Riprap
Left Right
Freeboard freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Mutt. x
Width (ft) Ratio Ratio
Depth (ft) % of Depth (VxD)
12.00 2.0:1 2.0:1 6.0
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
Structure #29 (Riprap Channel)
D3
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
98.86 cl's
Depth:
1.03 ft 1.33 ft
Top Width:
16.13 ft 17.33 ft
Velocity:
6.81 fps
X- Section Area:
14.52 sq ft
Hydraulic Radius:
0.874 ft
Froude Number:
1.26
Manning's n:
0.0490
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #29 (Riprap Channel)
D3
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslop e Sideslope Slope ( %)
Mutt. x
Width (ft) Patio Ratio
Depth (ft) % of Depth (VxD)
12.00 2.0:1 2.0:1 6.1
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
t
Filename: 25 -year Coilom_Ponds (Without Riser).sc4
Printed 01 -20 -2009
Exh. 7- 23A -88 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
146.35 cis
Depth:
1.26 It 1.56 ft
Top Width:
17.03 ft 18.23 ft
velocity:
8.02 fps
X- Section Area:
18.26 sq It
Hydraulic Radius:
1.036 It
Froude Number:
1.36
Filename: 25 -year Coilom_Ponds (Without Riser).sc4
Printed 01 -20 -2009
Exh. 7- 23A -88 Revision Date: 12/15/10
Revision No.: PR -03