SW6201005_Design Calculations (Culvert)_20211015

Culvert Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.
Circular Culvert
Invert Elev Dn (ft)
= 203.30
Calculations
Pipe Length (ft)
= 80.00
Qmin (cfs)
Slope (%)
= 3.87
Qmax (cfs)
Invert Elev Up (ft)
= 206.40
Tailwater Elev (ft)
Rise (in)
= 30.0
Shape
= Circular
Highlighted
Span (in)
= 30.0
Qtotal (cfs)
No. Barrels
= 1
Qpipe (cfs)
n-Value
= 0.012
Qovertop (cfs)
Culvert Type
= Circular Concrete
Veloc Dn (ftls)
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
HGL Up (ft)
Embankment
Hw Elev (ft)
Top Elevation (ft)
= 210.20
Hw/D (ft)
Top Width (ft)
= 30.00
Flow Regime
Crest Width (ft)
= 40.00
rlN (it)
211 DO
2200D
209.00
2% 00
20700
206 DO
21» W
204 06
203,G0
202.CO
e Namo
Thursday, Apr 1 2021
= 26.67
= 26.67
= (dc+D)12
= 26.67
= 26.67
= 0.00
= 5.99
= 7.22
= 205.43
= 208.16
= 209.21
= 1.12
= Inlet Control
Hw Deplh 01)
circular Culvert HGL im6ank
Ft h (h)
4.60
3.60
280
1.60
0.60
.040
.1 47
-2.40
-3.40
4 4C