mta-bor298001_PRO_MAIN_MAIN-01.pdf
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- Attached to
- MT FLAP BOR 2980(1), Sun River Bridge Replacement Federal contract opportunity
- Solicitation number
- 69056724B000016
About this file
This document is a Vertical Alignment Review Report for the project "MT FLAP BOR 2980(1), Sun River Bridge Replacement." The report details the horizontal and vertical alignments for the new bridge construction, including station elevations, tangent grades, curve lengths, and middle ordinates.
The related federal contract opportunity is for the construction of a new 462-foot long precast-post-tensioned girder bridge with concrete deck, located approximately 50 miles northwest of Augusta, Montana. The project also includes approach work on embankments and MSE walls, with final surfacing of gravel for the approaches and concrete on the bridge. The work may include an option to demolish the existing steel truss bridge upon completion of the new structure. The contract is a sealed bid, firm-fixed-price procurement with an estimated price range between $10 million and $20 million. The tentative completion date is Fall 2026.
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Text version
Vertical Alignment Review Report Report Created: Thursday, August 8, 2024
Time: 9:05:31 AM
Project: Design IntlFt Description:
File Name: \\RPA-HLN-04\Shared\highways\FHWA\23500008_mta-bor2980-1_SunRiverBridge\DGN\mta-bor298001_ali01.dgn
Last Revised: 8/8/2024 09:05:03
Note: All units in this report are in feet unless specified otherwise.
Horizontal Alignment: "MAIN-01" Horizontal Description:
Horizontal Style: Alignment\Baseline
Vertical Alignment: "MAIN-01 PRO" Vertical Description:
Vertical Style: Alignment\Baseline Station Elevation
Element: Linear
START 0+91.39 4467.1434
VPC 1+07.50 4467.0101
Tangent Grade: -0.008 Tangent Length: 16.112
Element: Symmetrical Parabola
VPC 1+07.50 4467.0101
VPI 1+45.00 4466.7000
VPT 1+82.50 4466.8071
VLP 1+63.24 4466.7796
Length: 75.000 Entrance Grade: -0.008
Exit Grade: 0.003 r = 100 * (g2 - g1) / L: 1.484
K = l / (g2 - g1): 67.403 Middle Ordinate: 0.104
Element: Linear
VPT 1+82.50 4466.8071
VPC 2+07.50 4466.8786
Tangent Grade: 0.003 Tangent Length: 25.000
Element: Symmetrical Parabola
Page 1 of 3Vertical Alignment Review Report
8/8/2024
Horizontal Alignment: "MAIN-01" Horizontal Description:
Horizontal Style: Alignment\Baseline
VPC 2+07.50 4466.8786
VPI 2+50.00 4467.0000
VPT 2+92.50 4465.9865
VHP 2+16.59 4466.8916
Length: 85.000 Entrance Grade: 0.003
Exit Grade: -0.024 r = 100 * (g2 - g1) / L: -3.142
K = l / (g2 - g1): 31.831 Middle Ordinate: -0.284
Element: Linear
VPT 2+92.50 4465.9865
VPC 7+75.00 4454.4808
Tangent Grade: -0.024 Tangent Length: 482.500
Element: Symmetrical Parabola
VPC 7+75.00 4454.4808
VPI 9+00.00 4451.5000
VPT 10+25.00 4454.3276
VLP 9+03.30 4452.9511
Length: 250.000 Entrance Grade: -0.024
Exit Grade: 0.023 r = 100 * (g2 - g1) / L: 1.859
K = l / (g2 - g1): 53.802 Middle Ordinate: 1.452
Element: Linear
VPT 10+25.00 4454.3276
VPC 15+50.00 4466.2034
Tangent Grade: 0.023 Tangent Length: 525.000
Element: Symmetrical Parabola
VPC 15+50.00 4466.2034
VPI 16+25.00 4467.9000
VPT 17+00.00 4467.3667
VHP 16+64.12 4467.4942
Length: 150.000 Entrance Grade: 0.023
Exit Grade: -0.007 r = 100 * (g2 - g1) / L: -1.982
Page 2 of 3Vertical Alignment Review Report
Horizontal Alignment: "MAIN-01" Horizontal Description:
Horizontal Style: Alignment\Baseline K = l / (g2 - g1): 50.451
Middle Ordinate: -0.557
Element: Linear
VPT 17+00.00 4467.3667
VPC 18+00.00 4466.6556
Tangent Grade: -0.007 Tangent Length: 100.000
Element: Symmetrical Parabola
VPC 18+00.00 4466.6556
VPI 18+50.00 4466.3000
VPT 19+00.00 4466.3833
VLP 18+81.02 4466.3675
Length: 100.000 Entrance Grade: -0.007
Exit Grade: 0.002 r = 100 * (g2 - g1) / L: 0.878
K = l / (g2 - g1): 113.929 Middle Ordinate: 0.110
Element: Linear
VPT 19+00.00 4466.3833
END 20+41.61 4466.6193
Tangent Grade: 0.002 Tangent Length: 141.606
Page 3 of 3Vertical Alignment Review Report
File details come from the government source that posted it. Updated .