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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Structure #416% "m Channel)
D2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
•
Left Right
w/o Freeboard w/ Freeboard
X- Section Area:
16.29 sq ft
Hydraulic Radius:
1.221 ft
Froude Number:
1.17
Manning's n:
0.0430
Dmin:
3.00 In
D50:
6.00 In
Dmax:
9.00 In
Structure #416% "m Channel)
D2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
•
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Depth (R) % f De th Mult. x
p
Ratio Ratio
(VXD)
12.00 2.0:1 2.0:1 6.7
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #40 (Riprap Channell
DI
Trapezoidal Riprap Channel Inputs:
Material: Riprap
U
Filename: 10-year Collom_Pond (With Riser).sc4
Exh. 7- 23A -25
Olin
21
Printed 01 -22 -2009
Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
26.22 cfs
Depth:
0.44 ft 0.74 ft
Top Width:
13.77 ft 14.97 ft
Velocity:
4.61 fps
X- Section Area:
5.69 sq ft
Hydraulic Radius:
0.407 ft
Froude Number:
1.26
Manning's n:
0.0460
Dmin:
2.00 in
D50:
3.00 In
Dmax:
4.50 in
Structure #40 (Riprap Channell
DI
Trapezoidal Riprap Channel Inputs:
Material: Riprap
U
Filename: 10-year Collom_Pond (With Riser).sc4
Exh. 7- 23A -25
Olin
21
Printed 01 -22 -2009
Revision Date: 12/15/10
Revision No.: PR -03