SW6220602_Design Calculations (Culvert 1)_20220810

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Jul 7 2022
PIPE 1
Invert Elev Dn (ft)
= 135.70
Calculations
Pipe Length (ft)
= 48.00
Qmin (cfs)
= 10.64
Slope (%)
= 0.52
Qmax (cfs)
= 10.64
Invert Elev Up (ft)
= 135.95
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 24.0
Shape
= Circular
Highlighted
Span (in)
= 24.0
Qtotal (cfs)
= 10.64
No. Barrels
= 1
Qpipe (cfs)
= 10.64
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 3.99
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 5.59
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 137.28
HGL Up (ft)
= 137.12
Embankment
Hw Elev (ft)
= 137.71
Top Elevation (ft)
= 138.39
Hw/D (ft)
= 0.88
Top Width (ft)
= 20.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 5.00
Ele (R)
139.00
130A0
137A0
136 0D
135 00
134 M
0
PIPE 7
Hai Depth (R)
3.05
2 OS
1 JDS
0 05
-095
-196
5 10 15 20 25 30 35 40 45 50 55 60 65 70
[Qraiar Qlverl HGL Embank
Rmrh (t)