PERMFILE56184

• Permit No: C1981041
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Doc Name: A-1 Roadway Drainage & Cross-Drainage Culvert Calculations
• Section_Exhibit Name: TAB 13 Appendix 13-1
• Media Type: D
• Archive: No

SEDCAD+ CULVERT SIZING UTILITY
Dip Sections with 36CMP's
Design Discharge = 44.300 cfs
• Entrance Loss Coefficient 0.5
Pipe Length 30.000 feet
Pipe Slope = 4.000
Manning's n = 0.024
Maximum Headwater = 3.750 feet
Tailwater Depth = 0.000 feet
Smallest Diameter Required to Pass Flow is 36 inches
Diameter: 36 inches
•
•
Headwater Discharge Flow
(ft)
-- (cfs)
------------ Control
------------------------ Type
---------
-----------
0.38 1.47 Inlet (Supercritical) 3
0.75 4.08 Inlet (Supercritical) 3
1.13 7.50 Inlet (Supercritical) 3
1.50 11.54 Inlet (Supercritical) 3
1.88 16.13 Inlet (Supercritical) 3
2.25 21.20 Inlet (Supercritical) 3
2.63 26.72 Inlet (Supercritical) 3
3.00 32.64 Inlet (Supercritical) 3
3.38 38.95 Inlet (Supercritical) 3
3.75 44.34 Inlet 5
4.13 49.30 Inlet 5
4.50 53.79 ., Inlet 5
4.88 57.94 ~ Inlet 5
5.25 61.81 Inlet 5
5.63 65.46 Inlet 5

Total Dip Section capacity = 6 (al 44.34 cfs = 266.0 cfs
13-1-10 (New 12/16/96)