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
19 1
Erodible Channel Results:
Left Right
Freeboard
Freeboard Freeboard
Limiting
9
Depth:
0.23 ft 0.53 ft
Bottom Sideslope Sideslope Slope ( %) Manning's n
Width (ft)
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
3.13 fps
X- Section Area:
Ratio Ratio
(VxD)
0.211 ft
Froude Number:
1.19
5.00 2.0:1 2.0:1 4.3 0.0350
0.30
5.5
3.00 In
Erodible Channel Results:
Structure #5 (Riprap Channel)
NOa
•
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o freeboard w/ Freeboard
Design Discharge:
4.00 cfs
Depth:
0.23 ft 0.53 ft
Top Width:
5.93 ft 7.13 ft
Velocity:
3.13 fps
X- Section Area:
1.28 sq ft
Hydraulic Radius:
0.211 ft
Froude Number:
1.19
Structure #5 (Riprap Channel)
NOa
•
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard freeboard
Sideslope Sideslope Slope ( %)
Width
Depth (ft) % of Depth Mult. x
P (
Ratio Ratio
(VxD)
5.00 2.0 :1 2.0:1 3.1
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
• Structure #4 L /prap Channell
Fliename: 10 -year Coitom_Pond (With Riser).so4
Exh. 7- 23A -23
Printed 01 -22 -2009
Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Desi Dis charge:
105.92 cfs
Depth:
1.80 ft 2.10 ft
Top Width:
12.20 ft 13.40 ft
Velocity:
6.84 fps
X- Section Area:
15.49 sq ft
Hydraulic Radius:
1.187 ft
Froude Number:
1.07
Manning's n:
0.0430
Dmin:
3.00 In
D50:
6.00 In
Dmax:
9.00 In
• Structure #4 L /prap Channell
Fliename: 10 -year Coitom_Pond (With Riser).so4
Exh. 7- 23A -23
Printed 01 -22 -2009
Revision Date: 12/15/10
Revision No.: PR -03