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
r'--W,4 4002 .Inn"? 93-1. 1 Qr) . h
w/o Freeboard w/ Freeboard
Manning's n:
0.0420
Dmin:
2.00 In
050:
3.00 In
Dmax:
4.50 In
Structure #32 (Culvert
C5
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater ft Loss coef.
(ft) () (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 5.12 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #31 (Erodible Channell
NO
Triangular Erodible Channel Inputs:
Material: Cobbles and shinales
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (V
(fps)
2.0:1 2.0:1 6.8 0.0350
0.30
5.5
Erodible Channel Results:
Structure #30 Liprap Channell
D15
Trapezoidal Riprap Channel Inputs:
Filename: 10 -year Coliom_Pond (With Riser).sc4
26
Printed 01 -22 -2009
Exh. 7- 23A -30 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
0.00 cfs
Depth:
0.01 ft 0.31 ft
Top width:
0.04 ft 1.24 ft
Velocity:
0.30 fps
X-Section Area:
0.00 sq ft
Hydraulic Radius:
0.004 ft
Froude Number:
0.75
Structure #30 Liprap Channell
D15
Trapezoidal Riprap Channel Inputs:
Filename: 10 -year Coliom_Pond (With Riser).sc4
26
Printed 01 -22 -2009
Exh. 7- 23A -30 Revision Date: 12/15/10
Revision No.: PR -03