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 X2 Culvert
C2
Culvert Inputs:
Max. Entrance
Tallwater
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 19.20 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #23 6g rap Channel)
D13
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
w/o Freeboard w/ Freeboard
Top Width:
3.94 It 5.14 ft
Velocity:
6.59 fps
X- Section Area:
1.94 sq ft
Hydraulic Radius:
0.441 ft
Froude Number:
1.65
Manning's n:
0.0410
Dmin:
3.00 In
D50:
6.00 In
Dmax:
9.00 In
Structure X2 Culvert
C2
Culvert Inputs:
Max. Entrance
Tallwater
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 19.20 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #23 6g rap Channel)
D13
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Mult. x
Ratio Ratio
ft
Depth of Depth
p () % p (VxD)
2.0:1 2.0:1 17.6
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
4 0
I
I
30
i
I
Filename: 10 -year Collom_Pond (With Rlser).sc4 Printed 01 -22 -2009
Exh. 7- 23A -34 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
31.62 cis
Depth:
1.33 ft 1.63 ft
Top width:
5.30 ft 6.50 ft
Velocity:
9.00 fps
X- Section Area:
3.51 sq It
Hydraulic Radius:
0.593 ft
I
I
30
i
I
Filename: 10 -year Collom_Pond (With Rlser).sc4 Printed 01 -22 -2009
Exh. 7- 23A -34 Revision Date: 12/15/10
Revision No.: PR -03