SW6220806_Design Calculations_20221128 (9)

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Jun 30 2022
Pipe 9 (25-yr)
Invert Elev Dn (ft)
= 158.90
Calculations
Pipe Length (ft)
= 52.00
Qmin (cfs)
= 11.40
Slope (%)
= 0.58
Qmax (cfs)
= 11.40
Invert Elev Up (ft)
= 159.20
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 24.0
Shape
= Circular
Highlighted
Span (in)
= 24.0
Qtotal (cfs)
= 11.40
No. Barrels
= 1
Qpipe (cfs)
= 11.40
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 4.22
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 5.70
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 160.51
HGL Up (ft)
= 160.42
Embankment
Hw Elev (ft)
= 160.97
Top Elevation (ft)
= 162.50
Hw/D (ft)
= 0.89
Top Width (ft)
= 40.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
eer (t)
163A0
162A0
161 AO
160Ao
159-00
156A0
157AO
0
Pipe 9 (25-yr)
5 10 15 20 25 30 35 40 45 50 55 60
cirWarcWvert HGL Embank
Hw Depth (t)
390
2M
190
090
-020
-120
-220
H 70 75
Reach (R)