SW6220806_Design Calculations_20221128 (10)

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Jun 30 2022
Pipe 10 (25-yr)
Invert Elev Dn (ft)
= 158.60
Calculations
Pipe Length (ft)
= 44.00
Qmin (cfs)
= 14.89
Slope (%)
= 0.45
Qmax (cfs)
= 14.89
Invert Elev Up (ft)
= 158.80
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 24.0
Shape
= Circular
Highlighted
Span (in)
= 24.0
Qtotal (cfs)
= 14.89
No. Barrels
= 1
Qpipe (cfs)
= 14.89
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 5.25
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 6.39
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 160.29
HGL Up (ft)
= 160.19
Embankment
Hw Elev (ft)
= 160.92
Top Elevation (ft)
= 161.90
Hw/D (ft)
= 1.06
Top Width (ft)
= 32.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
El ow (t)
162A0
161.00
160.0E
158-00
156A0
157A0
0 5 10 15 2�
QrWffctdV ff HGL
Pipe 1a (25-yr)
25 30 35 40 45 50
Embank
Hw Depth (t)
320
2.20
120
020
-080
-180
55 60 65
Reach (tt)