PERMFILE43265

• Permit No: C1982057A
• IBM Index Class Name: Permit File
• Doc Date: 11/5/2004
• Doc Name: Culvert Calculations
• Section_Exhibit Name: Tab 13 Attachment 13-7
• Media Type: D
• Archive: Yes

SEDCAD+ CULVERT SIZING UTILITY
•
CULVERT HRC-F6
Design Discharge = 78.420 cfs
Ent ranee Loss Coefficient = 0.9
Pipe Length = 100.000 feet
Pipe Slope = 2.000 6
Meaning's a = 0.024
Maximum Headwater = 4.620 feet
Tailwater Depth = 0.100 feet
Smallest Diameter Required to Pass Flow ie 48 inches
CURVES:
Diameter: 42 inches

Headwater Discharge
(ft) (cfs) Control
Flow
Type
0.46 2.32 Inlet (Supercritical) 3
0.92 6.52 Inlet (Supercritical) 3
1.39 11.96 Inlet (6uparcritieal) 3
1.85 18.41 Inlet (Supercritical) 3
2.31 25.73 Inlet (Supercritical) 3
2.77 33.82 Inlet (8upercritical) 3
3.23 62.62 Inlet (Supercritical) 3
3.70 52.08 Inlet (Supercritical) 3
6.16 61.70 Inlet (8upercritical) 4
4.62 69.37 Inlet 5
S.OB 76.62 Inlet 5
5.56 83.19 Inlet 5
6.01 87.58 Outlet 6
6.67 91.51 Outlet 6
6.93 95.29 Outlet 6
Diameter: 45 inches
Headwater Discharge Flow
(ft) (cfs) Control Type
0.66 2.48 Inlet (Supercritical) 3
0.92 6.97 Inlet (Supercritical) 3
1.39 12.81 Inlet (Supercritical) 3
1.85 19.73 Inlet (Supercritical) 3
2.31 27.57 Inlet (Supercritical) 3
2.77 36.24 Inlet (Supercritical) 3
3.23 45.67 Inlet (Supercritical) 3
3.70 55.79 Ialat (Supercritical) 3
4.16 66.57 Inlet (Supercritical) 3
6.62 76.14 Inlet 5
5.06 86.81 Inlet 5
5.54 92.67 Inlet 5
6.01 99.91 Inlet 5
6.47 105.41 outlet 6
6.93 109.92 Outlet 6