2010-12-17_REVISION - C1981019 ‎(128)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 12/17/2010
• Doc Name: Exhibit 7 Item 23 Erosion and Sedimentation Part 2
• Type & Sequence: PR3
• Email Name: JRS
• Media Type: D
• Archive: No

•
Design Discharge = 88.15 cfs
46 Minimum pipe diameter: 1 - 48 inch pipe(s) required
Structure #35 (R /ara� Channell
D14
Triangular Riprap Channel Inputs:
Material: Ripran
Left Right
w/o Freeboard w/ Freeboard
Manning's n:
0.0280
Dmin:
1.00 In
D50:
1.50 In
Dmax:
3.00 in
Design Discharge = 88.15 cfs
46 Minimum pipe diameter: 1 - 48 inch pipe(s) required
Structure #35 (R /ara� Channell
D14
Triangular Riprap Channel Inputs:
Material: Ripran
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Depth (ft) % of Depth Muit. x
Ratio Ratio
(VxD)
2.0 :1 2.0:1 2.3
0.30
SEDCAD 4 for Windows
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Structure #36 (Culvert
C4
Culvert Inputs:
Max. Entrance
Tallwater
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft ) (Ke)
160.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Riprap Channel Results:
26
PADER Method - Steep Slope Design
•
Fliename: 100 -year Collom_Ponds (With Rlser).sc4
Printed 01 -22 -2009
Exh. 7 -23A -144 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ freeboard
Design Discharge:
55.37 cis
Depth:
2.09 ft 2.39 ft
Top width:
8.35 ft 9.55 ft
Velocity:
6.35 fps
X- Section Area:
8.72 sq ft
Hydraulic Radius:
0.934 ft
Froude Number:
1.10
Manning's n:
0.0340
Dmin:
2.00 In
D50:
3.00 In
Fliename: 100 -year Collom_Ponds (With Rlser).sc4
Printed 01 -22 -2009
Exh. 7 -23A -144 Revision Date: 12/15/10
Revision No.: PR -03