PERMFILE41445

• Permit No: C1981038
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2004
• Section_Exhibit Name: Volume 8 Surface Drainage - Culvert Capacities
• Media Type: D
• Archive: No

SEDCAD+ CULVERT SIZING UTILITY
ORCHARD VALLEY CULVERT "N" 100 YEAR
Design Discharge = 30.390 cfs
Entrance Loss Coefficient = 0.9
Pipe Length 60.000 feet
Pipe Slope 9.000 %
Manning's n 0.024
Maximum Headwater = 4.000 feet
Tailwater Depth = 0.000 feet
Smallest Diameter Required to Pass Flow is 30 inches
PERFORMANCE CURVES:
Diameter: 24 inches
Headwater Discharge Flow
(ft)
--
--- (cfs)
------------ Control
------------------------ Type
---------
-------
-
0.40 1.07 Inlet (Supercritical) 3
0.80 3.00 Inlet (Supercritical) 3
1.20 5.51 Inlet (Supercritical) 3
1.60 8.48 Inlet (Supercritical) 3
2.00 11.85 Inlet (Supercritical) 3
2.40 15.40 Inlet (Supercritical) 4
2.80 18.22 Inlet 5
3.20 20.73 Inlet 5
3.60 22.97 Inlet 5
4.00 25.01 Inlet 5
Diameter: 30 inches
Headwater Discharge Flow
(ft1
--
-
------ (cfs)
------------ Control
------------------------ Type
---------
---
-
0.40 1.35 Inlet (Supercritical) 3
0.80 3.75 Inlet (Supercritical) 3
1.20 6.88 Inlet (Supercritical) 3
1.60 10.60 Inlet (Supercritical) 3
2.00 14.81 Inlet (Supercritical) 3
2.40 19.46 Inlet (Supercritical) 3
2.80 24.53 Inlet (Supercritical) 3
3.20 28.90 Inlet 5
3.60 32.76 Inlet 5
4.00 36.22 Inlet 5
Diameter: 36 inches
Headwater Discharge Flow
(ft)
------------ (cfs)
------------ Control
------------------------ Type
---------
-
0.40 1.62 Inlet (Supercritical) 3
0.80 4.50 Inlet (Supercritical) 3
1.20 8.26 Inlet (Supercritical) 3
1.60 12.72 Inlet (Supercritical) 3
2.00 17.77 Inlet (Supercritical) 3
•
2.40 23.36 Inlet (Supercritical) 3
2.80 29.43 Inlet (Supercritical) 3
3.20 35.96 Inlet (Supercritical) 3

C'- ~~