SW6210601_Design Calculations (Culvert 1)_20211008

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Tuesday, Aug 24 2021
PIPE 1
Invert Elev Dn (ft)
= 174.50
Calculations
Pipe Length (ft)
= 80.00
Qmin (cfs)
= 33.80
Slope (%)
= 0.63
Qmax (cfs)
= 33.80
Invert Elev Up (ft)
= 175.00
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 36.0
Shape
= Circular
Highlighted
Span (in)
= 36.0
Qtotal (cfs)
= 33.80
No. Barrels
= 1
Qpipe (cfs)
= 33.80
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 5.48
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 7.19
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 176.94
HGL Up (ft)
= 176.89
Embankment
Hw Elev (ft)
= 177.79
Top Elevation (ft)
= 180.47
Hw/D (ft)
= 0.93
Top Width (ft)
= 50.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
El-(R)
191.❑0
1MW
179.❑0
173.❑0
177 ❑0
176.❑0
175 ❑0
174.❑0
173 ❑0
PIPE 1
1❑ 20 30 40 50 60 70 30 90 10❑ 11❑
Ci-1w C.1-1 HGL Embank
Hw Depth (R)
6.❑❑
5.00
4.00
3.00
z ❑❑
1.❑❑
❑ 00
ADD
-2 00
120
R-h (R)