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.—Mi hr 1QQA -)nn7 P-1. I Crhuioh
51
DSL Y -16
• Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shingles
Bottom Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Width (ft)
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
10.00 2.0:1 2.0:1 5.0 0.0350
0.30
5.5
Erodible Channel Results:
Structure #73 (Erodible Channel
is DSL Y -16A
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
18.45 cfs
Depth:
0.37 ft 0.67 ft
Top Width:
11.48 ft 12.68 ft
Velocity:
4.64 fps
X- Section Area:
3.97 sq ft
Hydraulic Radius:
0.341 ft
Froude Number:
1.39
Structure #73 (Erodible Channel
is DSL Y -16A
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 5.0 0.0300
0.30
5.5
Erodible Channel Results:
. Structure #72 (Cu /vertu
Filename: Sylvester Gulch_09292010.sc4 Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
1.70 cfs
Depth:
0.47 ft 0.77 ft
Top Width:
1.87 ft 3.07 ft
Velocity:
3.91 fps
X- Section Area:
0.44 sq ft
Hydraulic Radius:
0.209 ft
Froude Number:
1.43
. Structure #72 (Cu /vertu
Filename: Sylvester Gulch_09292010.sc4 Printed 10 -06 -2010