SW6211001_Design Calculations (Culvert, Pipe 1)_20211014

Culvert Report
Hydraflow Express Extension for AUtodeskS Civil 3DO by Autodesk, Inc. Tuesday, Sep 14 2021
PIPE 1
Invert Elev Dn (ft)
= 262.35
Calculations
Pipe Length (ft)
= 85.00
Qmin (cfs)
= 2.84
Slope (%)
= 0.88
Qmax (cfs)
= 2.84
Invert Elev Up (ft)
= 263.10
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 2.84
No. Barrels
= 1
Qpipe (cfs)
= 2.84
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 2.11
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 3.95
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 263.42
HGL Up (ft)
= 263.74
Embankment
Hw Elev (ft)
= 263.99
Top Elevation (ft)
= 265.48
Hw/D (ft)
= 0.59
Top Width (ft)
= 52.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 0.00
—Cw )
2%M
23S X
262.W
26� W
PIPE 7
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