20160191_R-2250_double_arch_HY8Report_20190509

HY-8 Culvert Analysis Report
R-2250 Greenville Bypass
Double 87" x 63" CSP Pipe
55+26 —Y8-

Crossing Discharge Data
Discharge Selection Method: Recurrence
USGS Urban Regression Equations-USGS SIR 2014-5030, Version 1.1 March 2014
DRNAREA = 0.19 SQ. Mi.
IMPAREA = 10%
124H50YR = 8.5 infhr
Hydrologic Region 4
02 = 26.3(DRNAREA)"0.5908. 10"(0.0173-IMPAREA) " 104(0.0515"124H50Y)
Q5 = 4a.6(DRNAREA)"0.5958 * 10"(0.0125-IMPAREA)10"(0.0623"124H50Y)
Q10 = 51.8(DRNAREA) "0.6004 * 10'(0.0101'1MPAREA) * 1fl"(0.0666-124H50Y)
025 = 67.1(DRNAREA) ^0.15067 "' 10"(0.0075*IMPAREA) "' 10"(0.07WQ4H50Y)
Q50 = 78.4(DRNAREA)^0.6111 * 10'(0.0058`1MPAREA) " 10"(C.0738-124H50Y)
0100 = 90.5(DRNAREA)^0,6154 * 10"(0.0043-IMPAREA) * 10"(0,0762*124H50Y)
Q200 = 103(DRNAREA)"0.6201 - 10"(0.0029-IMPAR EA) * 10"(0.0785`124H50Y)
0500 = 119(DRNAREA)"C_6261 " 10"(0.0012"IMPAREA) * 10"(0.0.0813*124H50Y)
Q2=
40 cfs
Say= 40 cfs
05-
68 cfs
Say- 70 cfs
Q 10=
89 cfs
Say= 90 cfs
Q25=
117 cfs
Say= 120 cfs
Q50=
138 cfs
Say= 140 cfs
Q 100=
160 cfs
Say= 160 cfs
Q200= 183 cfs
Say= 180 cfs
0500=
213 cfs
Say= 210 cfs

Table 1 - Summary of Culvert Flows at Crossing: -Y8- 55+26
Headwater
Elevation (ft)
Discharge Names
Total Discharge
(cfs)
double Discharge
(cfs)
Roadway
Discharge (cfs)
Iterations
60.04
2 year
40.00
40.00
0.00
1
60.52
5 year
70.00
70.00
0.00
1
60.80
10 year
90.00
90.00
0.00
1
61.19
25 year
120.00
120.00
0.00
1
61.44
50 year
140.00
140.00
0.00
1
61.69
100 year
160.00
160.00
0.00
1
61.93
200 year
180.00
180.00
0.00
1
62.30
500 year
210.00
210.00
0.00
1
66.00
Overtopping
391.66
391.66
0.00
Overtopping

62
c
0
61
m
Rs
57
Crossing - -Y8- 55+26, Design Discharge - 140.0 cfs
Culvert - double, Culvert Discharge - 140.0 cfs
50 100 1
Station (ft)

Table 2 - Culvert Summary Table: Double 87"x63"
Discharge
Names
Total
Discharge
(cfs)
Culvert
Discharge
(cfs)
Headwater
Elevation
(ft)
Inlet
Control
Depth (ft)
Outlet
Control
Depth (ft)
Flow
Type
Normal
Depth (ft)
Critical
Depth (ft)
Outlet
Depth (ft)
Tailwater
Depth (ft)
Outlet
Velocity
(ft/s)
Tailwater
Velocity
(ft/s)
2 year
40.00
40.00
60.04
1.053
1.106
3-M2t
0.743
0.651
0.657
1.637
4.490
2.052
5 year
70.00
70.00
60.52
1.511
1.589
3-M1t
1.056
0.937
1.188
2.168
4.229
2.391
10 year
90.00
90.00
60.80
1.776
1.870
3-M1t
1.248
1.112
1.471
2.451
4.359
2.558
25 year
1 120.00
120.00
61.19
2.142
2.261
3-M1t
1.530
1.339
1.835
2.815
4.661
2.760
50 year
140.00
140.00
61.44
2.366
2.510
3-M1t
1.720
1.473
2.048
3.028
4.892
2.874
100 year
160.00
160.00
61.69
2.590
2.757
3-M1t
1.912
1.599
2.244
3.224
5.132
2.976
200 year
180.00
180.00
61.93
2.815
3.003
3-M1t
2.108
1.720
2.426
3.406
5.374
3.069
500 year
210.00
210.00
62.30
3.142
3.373
3-M1t
2.414
1.898
2.678
3.658
5.743
3.194
Straight Culvert
Inlet Elevation (invert): 58.93 ft, Outlet Elevation (invert): 57.48 ft
Culvert Length: 252.00 ft, Culvert Slope: 0.0058
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Site Data
Site Data Option: Culvert Invert Data
Inlet Station: 0.00 ft
Inlet Elevation: 57.93 ft
Outlet Station: 252.00 ft
Outlet Elevation: 56.48 ft
Number of Barrels: 2
Culvert Data Summary
Barrel Shape: Pipe Arch
Barrel Span: 87.00 in
Barrel Rise: 63.00 in
Barrel Material: Steel or Aluminum
Embedment: 12.00 in
Barrel Manning's n: 0.0280 (top and sides)
Manning's n: 0.0220 (bottom)
Culvert Type: Straight
Inlet Configuration: Square Edge with Headwall
Inlet Depression: None

Table 3 - Downstream Channel Rating Curve (Crossing: -YB- 55+26)
Flow (cfs)
Water Surface
Elev (ft)
Depth (ft)
Velocity (ft/s)
Shear (psf)
Froude Number
40.00
58.14
1.64
2.05
0.20
0.34
70.00
58.67
2.17
2.39
0.27
0.35
90.00
58.95
2.45
2.56
0.31
0.35
120.00
59.31
2.81
2.76
0.35
0.36
140.00
59.53
3.03
2.87
0.38
0.36
160.00
59.72
3.22
2.98
0.40
0.37
180.00
1 59.91
1 3.41
1 3.07
1 0.43
1 0.37
210.00
1 60.16
1 3.66
1 3.19
1 0.46
1 0.37
Tailwater Channel Data - -YB- 55+26
Tailwater Channel Option: Trapezoidal Channel
Bottom Width: 7.00 ft
Side Slope (H:V): 3.00 (1)
Channel Slope: 0.0020
Channel Manning's n: 0.0350
Channel Invert Elevation: 56.50 ft
Roadway Data for Crossing: -YB- 55+26
Roadway Profile Shape: Constant Roadway Elevation
Crest Length: 100.00 ft
Crest Elevation: 66.00 ft
Roadway Surface: Paved
Roadway Top Width: 64.00 ft