mt-ep-yell2022-1-3_ali.pdf
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- Solicitation number
- 69056725R000010
About this file
This is a Physical Data document containing horizontal and vertical alignment engineering specifications for the Yellowstone National Park Rescue Creek Bridge Replacement project under the Federal Highway Administration's Western Federal Lands Highway Division.
The document provides detailed alignment data for project MT ERFO NP YELL 2022-1(3), covering station MAIN05 from 100+00 to 104+20 (Pages 2-6). The horizontal alignment report details the geometric design elements including linear segments, circular curves, and coordinate positions with specific stations, northing/easting coordinates, tangent directions, curve radii, and lengths. Key horizontal elements include multiple curves with radii of 20 feet and 182 feet, with various tangent directions ranging from N84.689°E to N14.502°E. The vertical alignment report specifies elevation profiles with stations ranging from 5355.399 feet to 5380.577 feet elevation, including symmetrical parabolas, tangent grades varying from 0.012 to 0.141, and curve lengths. The engineering data was generated using design software and last revised on May 6, 2025, providing the technical foundation necessary for bridge replacement construction activities within Yellowstone National Park.
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Text version
PHYSICAL DATA
for
FEDERAL HIGHWAY ADMINISTRATION
WESTERN FEDERAL LANDS HIGHWAY DIVISION
MT ERFO NP YELL 2022‐1(3)
Yellowstone NP Rescue Creek
Bridge Replacement
ALIGNMENT DATA
MAIN05 (100+00 to 104+20) Pages 2‐6
Horizontal Alignment Review Report Report Created: Thursday, May 29, 2025
Time: 7:44:31 AM
Project: Design IntlFt Description:
File Name: c:\pw-work\d0634773\mt-ep-yell2022-1-3_ALI_05.dgn Last Revised: 5/6/2025 14:51:45
Note: All units in this report are in feet unless specified otherwise.
Alignment Name: ALI05_Rescue Creek Alignment Description:
Alignment Style: Alignment\Baseline Station Northing Easting
Element: Linear
START ( START ) 100+00.00 1975237.911 2466851.826
HPI ( HPI ) 100+90.00 1975246.242 2466941.440
Tangential Direction: N84.689°E
Tangential Length: 90.000
Element: Linear
HPI ( HPI ) 100+90.00 1975246.242 2466941.440
HPI ( HPI ) 102+62.12 1975262.156 2467112.827
Tangential Direction: N84.695°E Tangential Length: 172.125
Element: Linear
HPI ( HPI ) 102+62.12 1975262.156 2467112.827
PC ( PC ) 102+72.12 1975263.080 2467122.784
Tangential Direction: N84.695°E Tangential Length: 10.000
Element: Circular
PC ( PC ) 102+72.12 1975263.080 2467122.784
HPI ( HPI ) 102+96.07 1975265.295 2467146.630
CC ( CC ) 1975282.995 2467120.935
PT ( PT ) 103+07.12 1975288.364 2467140.201
Radius: 20.000 Delta: 100.268° Left
Degree of Curvature (Arc): 286.479° Length: 35.000
Tangent: 23.948 Chord: 30.702
Middle Ordinate: 7.180
Page 1 of 2Horizontal Alignment Review Report
5/29/2025
External: 11.201 Back Tangent Direction: N84.695°E
Back Radial Direction: S5.305°E Chord Direction: N34.561°E
Ahead Radial Direction: N74.428°E Ahead Tangent Direction: N15.572°W
Element: Linear
PT ( PT ) 103+07.12 1975288.364 2467140.201
PC ( PC ) 103+18.24 1975299.068 2467137.218
Tangential Direction: N15.572°W Tangential Length: 11.112
Element: Circular
PC ( PC ) 103+18.24 1975299.068 2467137.218
HPI ( HPI ) 103+67.13 1975346.167 2467124.092
CC ( CC ) 1975347.927 2467312.537
PT ( PT ) 104+13.77 1975393.503 2467136.336
Radius: 182.000 Delta: 30.075° Right
Degree of Curvature (Arc): 31.481° Length: 95.532
Tangent: 48.894 Chord: 94.439
Middle Ordinate: 6.232 External: 6.453
Back Tangent Direction: N15.572°W Back Radial Direction: N74.428°E
Chord Direction: N0.535°W Ahead Radial Direction: S75.498°E
Ahead Tangent Direction: N14.502°E
Element: Linear
PT ( PT ) 104+13.77 1975393.503 2467136.336
END ( END ) 104+20.00 1975399.538 2467137.897
Tangential Direction: N14.502°E
Tangential Length: 6.233
Page 2 of 2Horizontal Alignment Review Report
Vertical Alignment Review Report Report Created: Thursday, May 29, 2025
Time: 7:45:32 AM
Project: Design IntlFt Description:
File Name: c:\pw-work\d0634773\mt-ep-yell2022-1-3_ALI_05.dgn Last Revised: 5/6/2025 14:51:45
Note: All units in this report are in feet unless specified otherwise.
Horizontal Alignment: ALI05_Rescue Creek Horizontal Description:
Horizontal Style: Alignment\Baseline
Vertical Alignment: MAIN05PRO Vertical Description:
Vertical Style: Alignment\Baseline Station Elevation
Element: Linear
START 100+00.00 5355.399
VPC 100+15.46 5355.586
Tangent Grade: 0.012 Tangent Length: 15.458
Element: Symmetrical Parabola
VPC 100+15.46 5355.586
VPI 100+22.96 5355.676
VPT 100+30.46 5356.685
Length: 15.000
Entrance Grade: 0.012 Exit Grade: 0.135 r = 100 * (g2 - g1) / L: 81.664 K = l / (g2 - g1): 1.225
Middle Ordinate: 0.230
Element: Linear
VPT 100+30.46 5356.685
VPC 100+63.90 5361.186
Tangent Grade: 0.135 Tangent Length: 33.445
Element: Symmetrical Parabola
VPC 100+63.90 5361.186
VPI 100+71.40 5362.195
VPT 100+78.90 5362.570
Page 1 of 3Vertical Alignment Review Report
Horizontal Alignment: ALI05_Rescue Creek Horizontal Description:
Horizontal Style: Alignment\Baseline Length: 15.000
Entrance Grade: 0.135 Exit Grade: 0.050 r = 100 * (g2 - g1) / L: -56.375 K = l / (g2 - g1): 1.774
Middle Ordinate: -0.159
Element: Linear
VPT 100+78.90 5362.570
VPC 103+48.50 5376.050
Tangent Grade: 0.050 Tangent Length: 269.600
Element: Symmetrical Parabola
VPC 103+48.50 5376.050
VPI 103+51.00 5376.175
PVRC 103+53.50 5376.000
VHP 103+50.59 5376.102
Length: 5.000 Entrance Grade: 0.050
Exit Grade: -0.070 r = 100 * (g2 - g1) / L: -240.000
K = l / (g2 - g1): 0.417 Middle Ordinate: -0.075
Element: Symmetrical Parabola
PVRC 103+53.50 5376.000
VPI 103+63.00 5375.335
VPT 103+72.50 5375.791
VLP 103+64.77 5375.606
Length: 19.000 Entrance Grade: -0.070
Exit Grade: 0.048 r = 100 * (g2 - g1) / L: 62.105
K = l / (g2 - g1): 1.610 Middle Ordinate: 0.280
Element: Linear
VPT 103+72.50 5375.791
VPC 103+85.50 5376.415
Tangent Grade: 0.048 Tangent Length: 13.000
Element: Symmetrical Parabola
Page 2 of 3Vertical Alignment Review Report
Horizontal Alignment: ALI05_Rescue Creek Horizontal Description:
Horizontal Style: Alignment\Baseline
VPC 103+85.50 5376.415
VPI 103+93.00 5376.775
VPT 104+00.50 5377.831
Length: 15.000
Entrance Grade: 0.048 Exit Grade: 0.141 r = 100 * (g2 - g1) / L: 61.888 K = l / (g2 - g1): 1.616
Middle Ordinate: 0.174
Element: Linear
VPT 104+00.50 5377.831
END 104+20.00 5380.577
Tangent Grade: 0.141 Tangent Length: 19.499
Page 3 of 3Vertical Alignment Review Report
File details come from the government source that posted it. Updated .