mta-bor298001_ALI_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 Horizontal Alignment Review Report for the MT FLAP BOR 2980(1), Sun River Bridge Replacement project. The report details the horizontal alignment of the planned new bridge and approach roads, including the station locations, tangent lengths, radii, and other geometric characteristics.
The related federal contract opportunity is for the construction of a new 462-foot long, 3-span precast-post-tensioned girder bridge with precast concrete deck, approximately 200 feet downstream of the existing steel truss bridge. The work also includes new embankment approach roads with MSE wall construction. The project is located approximately 50 miles northwest of Augusta, MT, and has a tentative completion date of Fall 2026. The contract is a sealed bid, firm-fixed-price opportunity with an estimated value between $10 million to $20 million. The solicitation is offered for full and open competition on an unrestricted basis by the Department of Transportation Federal Highway Administration.
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Text version
Horizontal Alignment Review Report Report Created: Thursday, August 8, 2024
Time: 9:00:28 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 08:48:42
Note: All units in this report are in feet unless specified otherwise.
Alignment Name: "MAIN-01" Alignment Description:
Alignment Style: Alignment\Baseline Station Northing Easting
Element: Linear
START ( START ) 0+80.47 43510.1064 81725.5703
PC ( PC ) 1+55.29 43566.0771 81775.2281
Tangential Direction: N41.580°E
Tangential Length: 74.824
Element: Circular
PC ( PC ) 1+55.29 43566.0771 81775.2281
HPI ( HPI ) 1+74.67 43580.5729 81788.0889
CC ( CC ) 43366.9784 81999.6378
PT ( PT ) 1+94.00 43593.2936 81802.7078
Radius: 300.000 Delta: 7.392° Right
Degree of Curvature (Arc): 19.099° Length: 38.703
Tangent: 19.379 Chord: 38.676
Middle Ordinate: 0.624 External: 0.625
Back Tangent Direction: N41.580°E Back Radial Direction: S48.420°E
Chord Direction: N45.276°E Ahead Radial Direction: S41.028°E
Ahead Tangent Direction: N48.972°E
Element: Linear
PT ( PT ) 1+94.00 43593.2936 81802.7078
PC ( PC ) 8+52.49 44025.5469 82299.4604
Tangential Direction: N48.972°E
Page 1 of 3Horizontal Alignment Review Report
8/8/2024
Tangential Length: 658.488
Element: Circular
PC ( PC ) 8+52.49 44025.5469 82299.4604
HPI ( HPI ) 9+55.20 44092.9694 82376.9434
CC ( CC ) 43836.9509 82463.5687
PT ( PT ) 10+47.39 44086.4462 82479.4463
Radius: 250.000 Delta: 44.670° Right
Degree of Curvature (Arc): 22.918° Length: 194.909
Tangent: 102.710 Chord: 190.010
Middle Ordinate: 18.755 External: 20.277
Back Tangent Direction: N48.972°E Back Radial Direction: S41.028°E
Chord Direction: N71.306°E Ahead Radial Direction: S3.641°W
Ahead Tangent Direction: S86.359°E
Element: Linear
PT ( PT ) 10+47.39 44086.4462 82479.4463
PC ( PC ) 12+07.22 44076.2955 82638.9514
Tangential Direction: S86.359°E Tangential Length: 159.828
Element: Circular
PC ( PC ) 12+07.22 44076.2955 82638.9514
HPI ( HPI ) 14+17.93 44062.9134 82849.2332
CC ( CC ) 45473.4691 82727.8660
PT ( PT ) 16+25.50 44112.0190 83054.1384
Radius: 1400.000 Delta: 17.118° Left
Degree of Curvature (Arc): 4.093° Length: 418.275
Tangent: 210.707 Chord: 416.721
Middle Ordinate: 15.592 External: 15.767
Back Tangent Direction: S86.359°E Back Radial Direction: S3.641°W
Chord Direction: N85.082°E Ahead Radial Direction: S13.477°E
Ahead Tangent Direction: N76.523°E
Element: Linear
Page 2 of 3Horizontal Alignment Review Report
PT ( PT ) 16+25.50 44112.0190 83054.1384
PC ( PC ) 18+70.19 44169.0450 83292.0930
Tangential Direction: N76.523°E Tangential Length: 244.692
Element: Circular
PC ( PC ) 18+70.19 44169.0450 83292.0930
HPI ( HPI ) 19+37.79 44184.7993 83357.8316
CC ( CC ) 45141.5094 83059.0413
PT ( PT ) 20+05.18 44209.2577 83420.8518
Radius: 1000.000 Delta: 7.735° Left
Degree of Curvature (Arc): 5.730° Length: 134.995
Tangent: 67.600 Chord: 134.892
Middle Ordinate: 2.277 External: 2.282
Back Tangent Direction: N76.523°E Back Radial Direction: S13.477°E
Chord Direction: N72.656°E Ahead Radial Direction: S21.211°E
Ahead Tangent Direction: N68.789°E
Element: Linear
PT ( PT ) 20+05.18 44209.2577 83420.8518
END ( END ) 23+00.00 44315.9254 83695.6950
Tangential Direction: N68.789°E
Tangential Length: 294.817
Page 3 of 3Horizontal Alignment Review Report
File details come from the government source that posted it. Updated .