SW6220904_Design Calculations_20221102 (6)

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Tuesday, Jul 26 2022
PIPE 1
Invert Elev Dn (ft)
= 323.65
Calculations
Pipe Length (ft)
= 62.00
Qmin (cfs)
= 4.70
Slope (%)
= 2.02
Qmax (cfs)
= 4.70
Invert Elev Up (ft)
= 324.90
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 4.70
No. Barrels
= 1
Qpipe (cfs)
= 4.70
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 3.19
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 4.67
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 324.82
HGL Up (ft)
= 325.73
Embankment
Hw Elev (ft)
= 326.13
Top Elevation (ft)
= 327.90
Hw/D (ft)
= 0.82
Top Width (ft)
= 30.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 50.00
a-(R)
328 M
327 M
326A0
325A0
324.00
323 00
PIPE 1
H. Depth (Rj
3.1❑
210
1.10
0.10
-090
AM
M.-X. z.sn
0 5 10 15 2n 25 30 35 40 45 50 55 60 65 70 75 80 ffi
Cirwlar Culvert HGL Embank
RMdi (t)