SW6240607_Design Calculations_20240830 (10)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Jun 10 2024
PIPE 6 (PRE, 25-YR)
Invert Elev Dn (ft) = 314.42 Calculations
Pipe Length (ft) = 53.16 Qmin (cfs) = 39.42
Slope (%) = 2.86 Qmax (cfs) = 39.42
Invert Elev Up (ft) = 315.94 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 30.0
Shape = Circular Highlighted
Span (in) = 30.0 Qtotal (cfs) = 39.42
No. Barrels = 1 Qpipe (cfs) = 39.42
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 8.33
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 8.90
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 316.73
HGL Up (ft) = 318.05
Embankment Hw Elev (ft) = 319.67
Top Elevation (ft) = 320.33 Hw/D (ft) = 1.49
Top Width (ft) = 20.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 6(PRE.25-YR) Hw Depth)ftt
321.00 - - - - 5.06
320.00 4.06
Inlet control
319.00 3.06
318.00 2.06
317.00 1.06
316.00 ! 0.06
315.00 -0.94
314.00 -1.94
313.00 I I I -2.94
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
CircularCulvert HGL Embank
Reach(ft)