2010-11-19_PERMIT FILE - C1980007 ‎(19)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2010
• Doc Name: 100 yr - 24 hr
• Section_Exhibit Name: Exhibit 66 SG-1 Pond
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
r ...., ht 1°°a _9nm 13-1. 1 c�ti.�ti
75
Minimum pipe diameter: 1 - 2 inch pipe(s) required
• Structure #9 (Erodible Chann %�
DSL Y -3
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
1.0:1 3.0:1 8.1 0.0300
0.30
5.5
Erodible Channel Results:
Structure #8 (Culvert
CSL Y -4
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
49.00 5.00 0.0240 3.75 0.00 0.9(
Culvert Results:
•
Design Discharge = 12.20 cfs
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #80 (Erodible Channel,
DCW -4
Trapezoidal Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Filename: Sylvester Gulch_09292010.sc4 Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
12.20 cfs
Depth:
0.89 ft 1.19 ft
Top Width:
3.57 ft 4.77 ft
Velocity:
7.66 fps
X- Section Area:
1.59 sq ft
Hydraulic Radius:
0.399 ft
Froude Number:
2.02
Structure #8 (Culvert
CSL Y -4
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
49.00 5.00 0.0240 3.75 0.00 0.9(
Culvert Results:
•
Design Discharge = 12.20 cfs
Minimum pipe diameter: 1 - 18 inch pipe(s) required
Structure #80 (Erodible Channel,
DCW -4
Trapezoidal Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Filename: Sylvester Gulch_09292010.sc4 Printed 10 -06 -2010