_PERMIT FILE - C1980007A

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Name: MISCELLANEOUS DRAINAGE
• Section_Exhibit Name: Exhibit 66 Miscellaneous Drainage
• Media Type: D
• Archive: Yes

MR-418 Calculations
Structure: 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
Structure: D5E-4-#6
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
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