SW6211002_Design Calculations (Culvert)_20220810

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Wednesday, Jul 14 2021
Development Entrance Pipe off B&B Loop
Invert Elev Dn (ft)
= 173.41
Calculations
Pipe Length (ft)
= 75.00
Qmin (cfs)
= 1.44
Slope (%)
= 1.09
Qmax (cfs)
= 1.44
Invert Elev Up (ft)
= 174.23
Tailwater Elev (ft)
_ (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 1.44
No. Barrels
= 1
Qpipe (cfs)
= 1.44
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 1.18
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 3.23
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 174.38
HGL Up (ft)
= 174.68
Embankment
Hw Elev (ft)
= 174.84
Top Elevation (ft)
= 176.80
Hw/D (ft)
= 0.41
Top Width (ft)
= 30.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 80.00
Elegy (ft)
1 T7.OD
176.OD
175 an
174 OD
173.DD
172.OD
Development Entrance Pipe off B&B Loop
Girc WC.1vert HGL Embank
H-, Depth (fh
2.77
137
❑ 77
-023
-1.23
-2.23
Reach (ft!