SW6220702_Design Calculations (Pipe 3)_20220810

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Monday, Jul 11 2022
PIPE 3
Invert Elev Dn (ft)
= 123.75
Calculations
Pipe Length (ft)
= 44.00
Qmin (cfs)
= 10.71
Slope (%)
= 0.57
Qmax (cfs)
= 10.71
Invert Elev Up (ft)
= 124.00
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 24.0
Shape
= Circular
Highlighted
Span (in)
= 24.0
Qtotal (cfs)
= 10.71
No. Barrels
= 1
Qpipe (cfs)
= 10.71
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 4.01
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 5.60
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 125.34
HGL Up (ft)
= 125.17
Embankment
Hw Elev (ft)
= 125.77
Top Elevation (ft)
= 127.26
Hw/D (ft)
= 0.88
Top Width (ft)
= 20.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 50.00
Ele (R)
128.00
127 00
125 W
125 W
124 W
123 W
122 W
0
PIPE 3
5 10 15 20 25 30 35 40 45 50 55 60
C.,W.Cld eM HGL Embank
Hw Eeptn i$i
4.00
3 00
2W
1M
0M
-1 M
-2 M
65
R—ch (t)