2016-09-22_PERMIT FILE - C1980007 ‎(3)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 9/22/2016
• Doc Name: MISCELLANEOUS DRAINAGE
• Section_Exhibit Name: Exhibit 66 Miscellaneous Drainage
• Media Type: D
• Archive: No

Structure
Structure:
MR -418 Calculations
C5E-7 - 30" HDPE - Stand Alone #1
Manning's Coefficient (n) 0.024
Inside Diameter (in)
24.3
Radius (in)
12.15
Area (ft)
3.22
Hydraulic Radius (ft.)
0.51
Slope (ft./ft.)
0.05
Maximum Flow (cfs) 28.38
Design Discharge (cfs) 13.7
Combined Flow 16.45
(C5E-7 Design Flow + C5E-25 Design Flow)
Maximum Flow > Combined Flow? Yes
D5E-4 - #6
Maximum Flow (cfs) 38.82
Design Discharge (cfs) 15.95
Combined Flow 18.70
(D5E-4 Design Flow + C5E-25 Design Flow)
Maximum Flow > Combined Flow? Yes
2 of 5
8/23/2016
w/ Freeboard
(ft.)
Manning's Coefficient (n)
0.017
Top Width (T)
4.21
Bottom Width (b)
0.00
Depth (h)
1.05
z (ft.)
2.00
Area (ft)
2.21
Wetted Perimeter (ft.)
4.70
Hydraulic Radius (ft.)
0.47
Slope (ft./ft.)
0.11
Maximum Flow (cfs) 38.82
Design Discharge (cfs) 15.95
Combined Flow 18.70
(D5E-4 Design Flow + C5E-25 Design Flow)
Maximum Flow > Combined Flow? Yes
2 of 5
8/23/2016