SW6210601_Design Calculations (Culvert 3)_20211008

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, May 27 2021
PIPE 3
Invert Elev Dn (ft)
= 190.95
Calculations
Pipe Length (ft)
= 74.00
Qmin (cfs)
= 1.13
Slope (%)
= 1.76
Qmax (cfs)
= 1.13
Invert Elev Up (ft)
= 192.25
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 1.13
No. Barrels
= 1
Qpipe (cfs)
= 1.13
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 0.96
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 3.02
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 191.90
HGL Up (ft)
= 192.65
Embankment
Hw Elev (ft)
= 192.78
Top Elevation (ft)
= 194.79
Hw/D (ft)
= 0.35
Top Width (ft)
= 47.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
eer (t)
195.00
194A0
193.00
192.00
191 AO
190.00
PIPE 3
H a Depth (x)
2.75
1.75
075
-025
-125
-225
109A0 i i i i i i i i i i i i i i i i i i i i-3.25
0 5 115 225 335 4� 45 5� 55 s0 85 7 75 885 ..,. a
Circular Culvert HGL Embank
Reach Iftl