SW6240105_Design Calculations_20240424 (2)

HY-8 Culvert Analysis Report
Crossing Discharge Data
Discharge Selection Method: User Defined
Table 1-Summary of Culvert Flows at Crossing:Caspian Ct Crossing Single Circular
Headwater Discharge Total Pipe 1 Roadway Iterations
Elevation Names Discharge Discharge Discharge
(ft) (cfs) (cfs) (cfs)
213.32 10-YR 161.00 161.00 0.00 1
214.71 25-YR 233.00 233.00 0.00 1
217.49 100-YR 370.00 331.87 38.11 9
216.90 Overtopping 313.39 313.39 0.00 Overtopping
Rating Curve Plot for Crossing:Caspian Ct Crossing Single Circular
Total Rating Curve
Crossing:Caspian Ct Crossing Single Circular
217 5-
217-0-
216.5-
216.0-
c —
o —
m
w 2 1 5 5—
m
2150-
m
2145-
214.0-
213-5-
I l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l r
160 180 200 220 240 260 280 300 320 340 360 380
Total Discharge(cfs)
Culvert Data: Pipe 1
Table 1-Culvert Summary Table: Pipe 1
Disc Total Culv Head Inle Out Fl Nor Crit Ou Tail Outl Tail
harg Disc ert water t let o mal ical tle wate et wate

e harg Disc Eleva Con Con w Dep De t r Vel r
Nam e harg tion trol trol Ty th pth De Dept ocit Velo
es (cfs) e (ft) Dep Dep pe (ft) (ft) pth h (ft) y city
(cfs) th th (ft) (ft/ (ft/s
(ft) (ft) s) )
10- 161.0 161.0 213.3 4.73 4.92 2- 2.95 2.8 2.8 2.03 9.33 3.61
YR 0 cfs 0 cfs 2 5 M 7 7
2c
25- 233.0 233.0 214.7 6.30 6.30 7- 3.73 3.5 3.5 2.32 10.8 4.02
YR 0 cfs 0 cfs 1 8 M 6 6 2
2c
100- 370.0 331.8 217.4 9.09 8.21 7- 4.98 4.3 4.3 2.75 12.8 4.59
YR 0 cfs 7 cfs 9 6 M 3 3 9
2c
Culvert Barrel Data
Culvert Barrel Type Straight Culvert
Inlet Elevation (invert): 208.40 ft,
Outlet Elevation (invert): 207.00 ft
Culvert Length: 68.01 ft,
Culvert Slope: 0.0206

Culvert Performance Curve Plot: Pipe 1
Performance Curve
Culvert:Pipe 1
0 0
Inlet Control Elev Outlet Control Elev
217.5-
217.0-
216.5 _ A
216.0-
c - �
r,215.5-
w -
▪215.0-_
m _
=214.5-
i
213 5-
-
213 0- I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I
160 180 200 220 240 260 280 300 320 340 360 380
Total Discharge(cfs)

Water Surface Profile Plot for Culvert: Pipe 1
Crossing- Caspian Ct Crossing Single Circular,Design Discharge - 370.0 cfs
Culvert-Pipe 1,Culvert Discharge-331.9 cfs
245-_
1 1
- I 1
240- / 1
1
- I 1
235-- /
1
1 1
- I 1
- I 1
230- 1 1
- / 1
- I 1
-
0 - / 1
"�
225--
1
ID1
w - / 1
220- 1
l
215- � 1
�� 1
210-
205 I I I ! I I I ! I I I I I I I ' I I I ' I I I ' I I I ' I I I ' I I I ' I I I ' I l l '
980 990 1000 1010 1020 1030 1040 1050 1060 1070 1080 1090
Station(ft)
Site Data - Pipe 1
Site Data Option: Culvert Invert Data
Inlet Station: 1000.00 ft
Inlet Elevation: 207.40 ft
Outlet Station: 1068.00 ft
Outlet Elevation: 206.00 ft
Number of Barrels: 1
Culvert Data Summary- Pipe 1
Barrel Shape: Circular
Barrel Diameter: 6.50 ft
Barrel Material: Concrete
Embedment: 12.00 in
Barrel Manning's n: 0.0120 (top and sides)

Manning's n: 0.0350 (bottom)
Culvert Type: Straight
Inlet Configuration: Grooved End in Headwall
Inlet Depression: None
Tailwater Data for Crossing: Caspian Ct Crossing Single Circular
Table 2-Downstream Channel Rating Curve(Crossing: Caspian Ct Crossing Single Circular)
Flow(cfs) Water Velocity Depth (ft) Shear (psf) Froude
Surface (ft/s) Number
Elev(ft)
161.00 208.78 2.03 3.61 1.27 0.63
233.00 209.07 2.32 4.02 1.45 0.65
370.00 209.50 2.75 4.59 1.72 0.67
Tailwater Channel Data - Caspian Ct Crossing Single Circular
Tailwater Channel Option: Irregular Channel
Channel Slope: Irregular Channel
User Defined Channel Cross-Section
Coord No. Station (ft) Elevation (ft) Manning's n
1 0.00 211.50 0.0500
2 53.75 206.75 0.0350
3 75.00 208.80 0.0350
4 112.30 216.90 0.0000
Roadway Data for Crossing: Caspian Ct Crossing Single Circular
Roadway Profile Shape: Irregular Roadway Shape (coordinates)
Irregular Roadway Cross-Section
Coord No. Station (ft) Elevation (ft)
0 3062.00 218.43
1 3246.00 216.90
2 3725.00 244.62
Roadway Surface: Paved
Roadway Top Width: 32.00 ft