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
f:nnvrinhf 1Q°R _9l1f17 P�mch I Arhumh
54
DSL Y -17
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft)
Mult. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
4.00 2.0:1 2.0:1 8.4
0.30
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
C�
Velocity and Manning's n calculations may not apply for this method.
Structure #67 (Cu/vert
Detention Basin
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
1. 00 5.00 0.0120 6.00 0.00 0.9(
Culvert Results:
1.�
Design Discharge = 79.68 cfs
Minimum pipe diameter: 1 - 42 inch pipe(s) required
Structure #78 (Cu /vert1
CCW -IA
Culvert Inputs:
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
35.85 cfs
Depth:
0.57 ft 0.87 ft
Top Width:
6.29 ft 7.49 ft
Velocity*:
X- S e c ti o n Ar
2. sq ft
Hydraulic Radius:
0.449 ft
Froude Number *:
Manning's n *:
Dmin:
5.00 in
D50:
15.00 in
Dmax:
18.75 in
Velocity and Manning's n calculations may not apply for this method.
Structure #67 (Cu/vert
Detention Basin
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
1. 00 5.00 0.0120 6.00 0.00 0.9(
Culvert Results:
1.�
Design Discharge = 79.68 cfs
Minimum pipe diameter: 1 - 42 inch pipe(s) required
Structure #78 (Cu /vert1
CCW -IA
Culvert Inputs:
Filename: Sylvester Gulch_09292010.sc4
Printed 10 -06 -2010