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HWY BEACON ST over COMB I 90 & MBTA/CSX

Map

Coordinates:
+42.34788, -71.10056
42°20'52" N, 71°06'02" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY BEACON ST over COMB I 90 & MBTA/CSX
Structure number:B160544T2DOTNBI
Location:.1MI.W.BROOKLINE AVE S50
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:136.2 ft. [41.5 m]
Total length:355.0 ft. [108.2 m]
Roadway width between curbs:82.0 ft. [25.0 m]
Deck width edge-to-edge:102.4 ft. [31.2 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1965
Year reconstructed:1993
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:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:33,000 [as of 2016]
Truck traffic:13% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
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 replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:28.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$30,161,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2016PoorPoorSatisfactoryPoor3300028.8
February 2014PoorPoorSatisfactoryFair1090049.8
February 2012PoorPoorSatisfactoryFair1090073.7
March 2010PoorPoorSatisfactoryFair1090072.7
January 2008FairFairSatisfactoryFair1990072.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.5,20005,19730
Steel Protective Coatingsq. ft.66,235054,27311,9620
Reinforced Concrete Girder/Beamlinear ft.37625127980
Deck
Reinforced Concrete Decksq. ft.36,598036,59800
Wearing Surfacessq. ft.30,25730,1698800
Substructure
Reinforced Concrete Columneach10010
Reinforced Concrete Pier Walllinear ft.8495841001650
Reinforced Concrete Abutmentlinear ft.2,1061,734852870
Joints
Compression Jointlinear ft.1,8771,456084337
Bearings
Movable Bearingeach7800780
Steel Protective Coatingsq. ft.117003978
Fixed Bearingeach1806120
Steel Protective Coatingsq. ft.2700918
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.8258090160
Steel Protective Coatingsq. ft.2,5782,578000
Deck
Reinforced Concrete Slabsq. ft.33,91233,73701750
Wearing Surfacessq. ft.22,8618,759014,1020