PERMFILE66486

• Permit No: C1981020A
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Section_Exhibit Name: Volume 6 APPENDIX As TO Cs
• Media Type: D
• Archive: Yes

Asa-6
Solution: Maximum Allowable Velocity, Vmax = 4.5 fps
Minimum Allowable Velocity, Vmin = 2 fps
q10 = 14.5 cfs (from Peak Discharge Calculations)
n = 0.03 (Manning coeffi cient for riprap)
sideslope = 2:1 (horizontal to vertical)
slope(s) = 0.01 feet/feet
Manning Equation:
q10 = 1n49 AR '/, S '/,,

Hydraulic Data:
Q = 14.5 cfs
D = 1.41 feet
A = 3.98 feet i
R = 0.47 feet
s = 0.01 feet/feet
• n = 0.03
V = 3.65 _ fps
III. SEDIMENTATION RESERVOIR COLLECTOR DITCH DESIGN - North of CFA Access Road
Problem: Determine hydraulic data of a V -shaped collector
ditch, depth of flow at the design storm and maximum anticipated
velocity.
Solution:
Maximum Allowable Velocity, Vmax = 4.5 fps
Minimum Allowable Velocity, Vmin = 2 fps
q10 9'S cfs (from Peak Discharge Calculations
n = 0.03 (Manning coefficient for riprap)
sideslope = 2:1 {horizontal to vertical)
slope(s) = 0.02 feet/feet
Manning Equation:
q10 = 1_49 Ar '/a S '/,,
n
r
,i.~ ~t 2 Z 198