SW6220806_Design Calculations_20221128 (7)

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Jun 30 2022
Pipe 7 (25-yr)
Invert Elev Dn (ft)
= 161.90
Calculations
Pipe Length (ft)
= 56.00
Qmin (cfs)
= 1.15
Slope (%)
= 1.79
Qmax (cfs)
= 1.15
Invert Elev Up (ft)
= 162.90
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 1.15
No. Barrels
= 1
Qpipe (cfs)
= 1.15
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 0.97
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 3.03
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 162.85
HGL Up (ft)
= 163.30
Embankment
Hw Elev (ft)
= 163.43
Top Elevation (ft)
= 165.90
Hw/D (ft)
= 0.35
Top Width (ft)
= 42.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
eer (tt)
166A0
165A0
164.00
163A0
162A0
161-00
Pipe 7 (25-yr)
Hw Depth (tt)
3-10
2.10
1-10
0-10
-090
-1 90
160A0 i i i i i i i i i i i i i i i i i-2.90
0 5 10 15 2C• 2E 30 35 4C 45 5C 55 aC 35 75 80
Cirwlar Culvert HGL Embank
Reach (R)