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ST 99 SB/MAIN ST over RR MBTA/BMRR/CSX

Map

Coordinates:
+42.40159, -71.06096
42°24'06" N, 71°03'39" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ST 99 SB/MAIN ST over RR MBTA/BMRR/CSX
Structure number:E120013GHDOT634
Location:30 M S OF JCT SR16&SR99
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:85.0 ft. [25.9 m]
Total length:128.9 ft. [39.3 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:50.9 ft. [15.5 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:18°
Owner:State Highway Agency [01]
Year built:1954
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:41,500 [as of 2018]
Truck traffic:12% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 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:Equal to present minimum criteria [6]
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:76.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,137,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairFairFairFair4150076.8
August 2016FairFairFairFair2910077.5
August 2014FairFairSatisfactoryFair3140062.6
August 2012FairFairSatisfactoryFair3140062.6
August 2010FairFairSatisfactoryFair3200062.5
August 2008FairFairGoodSatisfactory3200072.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.685677008
Steel Protective Coatingsq. ft.6,1380006,138
Reinforced Concrete Girder/Beamlinear ft.131120074
Deck
Reinforced Concrete Decksq. ft.4,1103,697039914
Wearing Surfacessq. ft.2,44392901,46648
Substructure
Other Material Pier Walllinear ft.1449472518
Reinforced Concrete Abutmentlinear ft.1361201600
Joints
Other Jointlinear ft.9700097
Bearings
Movable Bearingeach88000
Steel Protective Coatingsq. ft.4040000
Fixed Bearingeach88000
Steel Protective Coatingsq. ft.4040000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.2612100051
Steel Protective Coatingsq. ft.1,0500966084
Deck
Reinforced Concrete Slabsq. ft.3,8323,54328900
Wearing Surfacessq. ft.2,25583201,37548