SW6220806_Design Calculations_20221128 (5)

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Jun 30 2022
Pipe 5 (25-yr)
Invert Elev Dn (ft)
= 162.60
Calculations
Pipe Length (ft)
= 48.00
Qmin (cfs)
= 4.79
Slope (%)
= 0.52
Qmax (cfs)
= 4.79
Invert Elev Up (ft)
= 162.85
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 18.0
Shape
= Circular
Highlighted
Span (in)
= 18.0
Qtotal (cfs)
= 4.79
No. Barrels
= 1
Qpipe (cfs)
= 4.79
n-Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 3.24
Culvert Entrance
= Groove end projecting (C)
Veloc Up (ft/s)
= 4.70
Coeff. K,M,c,Y,k
= 0.0045, 2, 0.0317, 0.69, 0.2
HGL Dn (ft)
= 163.77
HGL Up (ft)
= 163.69
Embankment
Hw Elev (ft)
= 164.06
Top Elevation (ft)
= 166.02
Hw/D (ft)
= 0.81
Top Width (ft)
= 32.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 10.00
eer (t)
167.00
166A0
165A0
164AO
163A0
162A0
161 AO
0
Pipe 5 (25-yr)
5 10 15 2� 25 34 35 40 45 50 55 60
cirWffcWvert HGL Embank
Hw Depth (t)
d_15
3.15
2.15
1.15
0.15
-0ffi
-1.85
65 7.
Reach Iftl