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
iaaa. , )nm 0. -1. 1
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Width (ft)
Mult. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
5.00 2.0:1 2.0:1 7.9
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
Structure #14 6 RipraQ Channel)
RD3
Trapezoidal Riprap Channel Inputs:
I
35
I
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Design Discharge:
127.91 cfs
Depth:
1.69 ft 1.99 ft
Top Width:
11.74 ft 12.94 ft
Velocity:
9.06 fps
X- Section Area:
14.11 sq ft
Hydraulic Radius:
1.126 ft
Froude Number:
1.46
Manning's n:
010500
Dmin:
5.00 In
D50:
9.00 In
Dmax:
12.00 In
Structure #14 6 RipraQ Channel)
RD3
Trapezoidal Riprap Channel Inputs:
I
35
I
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (it)
( Ratio Ratio
Mult. x
Depth (ft) % of Depth
Depth:
(VxD)
5.00 2.0:1 2.0:1 4.4
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Filename: 10- year_Cofiom_Pond (With Riser).sc4 Printed 01 -22 -2009
Exh. 7- 23A -39 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
448.82 crs
Depth:
3.40 ft 3.70 It
Top Width:
18.58 It 19.78 ft
Velocity:
11.21 fps
X-Section Area:
40.03 sq ft
Hydraulic Radius:
1.983 ft
Froude Number:
1.35
Manning's n:
0.0440
Dmin:
5.00 in
Filename: 10- year_Cofiom_Pond (With Riser).sc4 Printed 01 -22 -2009
Exh. 7- 23A -39 Revision Date: 12/15/10
Revision No.: PR -03