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HWY BOYLSTON ST over COMB I 90 & MBTA/CSX

Map

Coordinates:
+42.34750, -71.08667
42°20'51" N, 71°05'12" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY BOYLSTON ST over COMB I 90 & MBTA/CSX
Structure number:B160504T6DOTNBI
Location:AT PRU CENTER S55
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:173.9 ft. [53.0 m]
Total length:450.2 ft. [137.2 m]
Roadway width between curbs:60.0 ft. [18.3 m]
Deck width edge-to-edge:82.4 ft. [25.1 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:70°
Owner:State Highway Agency [01]
Year built:1965
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:16,181 [as of 2016]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:74.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$18,596,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016FairGoodSatisfactoryFair1618174.6
August 2014FairGoodSatisfactoryFair3070070.3
August 2012FairGoodSatisfactoryFair3070072.1
August 2010FairGoodGoodFair3070075.1
December 2007FairGoodGoodFair1990078.3

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.7,0006,88801120
Steel Protective Coatingsq. ft.42,00026,92515,07500
Deck
Reinforced Concrete Decksq. ft.47,44946,84960000
Wearing Surfacessq. ft.40,60040,5881200
Substructure
Reinforced Concrete Columneach5445090
Reinforced Concrete Pier Walllinear ft.20010050500
Reinforced Concrete Abutmentlinear ft.47040050200
Reinforced Concrete Pier Caplinear ft.1,1202605503100
Joints
Compression Jointlinear ft.90077001300
Bearings
Movable Bearingeach121566500
Steel Protective Coatingsq. ft.363363000
Fixed Bearingeach121814000
Steel Protective Coatingsq. ft.242242000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.720720000