SW6210601_Design Calculations (Culvert 2)_20211008

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Aug 19 2021
Pipe 2
Invert Elev Dn (ft)
= 181.50
Calculations
Pipe Length (ft)
= 86.00
Qmin (cfs)
= 3.49
Slope (%)
= 0.58
Qmax (cfs)
= 3.49
Invert Elev Up (ft)
= 182.00
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 3.49
No. Barrels
= 1
Qpipe (cfs)
= 3.49
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 2.50
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 4.19
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 182.61
HGL Up (ft)
= 182.72
Embankment
Hw Elev (ft)
= 183.00
Top Elevation (ft)
= 184.40
Hw/D (ft)
= 0.67
Top Width (ft)
= 42.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
El. (ft)
195.00
1,34.00
183A0
182 00
18100
1 S❑❑0
Pipe 2
Hw Depth (R)
3.00
2 00
1 JDD
0 00
-1.00
-2 00
10 20 30 40 5❑ EO 70 00 90 100 110 120 130
Circular Culvert HGL Embank
Reach (R)