SW6220903_Design Calculations_20221102 (2)

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Wednesday, Jul 6 2022
PIPE 1
Invert Elev Dn (ft)
= 117.90
Calculations
Pipe Length (ft)
= 64.00
Qmin (cfs)
= 1.63
Slope (%)
= 1.72
Qmax (cfs)
= 1.63
Invert Elev Up (ft)
= 119.00
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 15.0
Shape
= Circular
Highlighted
Span (in)
= 15.0
Qtotal (cfs)
= 1.63
No. Barrels
= 1
Qpipe (cfs)
= 1.63
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 1.77
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 3.50
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 118.78
HGL Up (ft)
= 119.51
Embankment
Hw Elev (ft)
= 119.70
Top Elevation (ft)
= 121.40
Hw/D (ft)
= 0.56
Top Width (ft)
= 30.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 5.00
Ele (R)
122.no
121 00
120 M
119 on
118 M
117 M
PIPE 7
Hw Depth iRj
3.J=
2.00
1M
0M
-1 M
-2 M
116 an -3 M
0 5 10 15 ZO 25 30 35 40 d6 50 55 fi0 65 70 75 80 85
[Qraiar Qlverl HGL EmI—k
Rmrh (R)