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ST 99 NB/BROADWAY over RR MBTA/BMRR/CSX

Map

Coordinates:
+42.40163, -71.06027
42°24'06" N, 71°03'37" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ST 99 NB/BROADWAY over RR MBTA/BMRR/CSX
Structure number:E120073GKDOT634
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:107.0 ft. [32.6 m]
Total length:110.9 ft. [33.8 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]
Owner:State Highway Agency [01]
Year built:1956
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
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:Poor
Status:Open, no restriction [A]
Average daily traffic:27,800 [as of 2018]
Truck traffic:10% of total traffic
Deck condition:Poor [4 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:Equal to present minimum criteria [6]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:67.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,666,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018PoorPoorSatisfactoryFair2780067.4
August 2016PoorPoorSatisfactoryFair2910066.9
August 2014PoorPoorSatisfactoryFair2340069.3
August 2012FairFairGoodFair2340071.5
August 2010FairFairGoodFair2300071.7
August 2008FairFairGoodSatisfactory2300084.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.6750615600
Steel Protective Coatingsq. ft.11,01500011,015
Deck
Reinforced Concrete Decksq. ft.5,7144,929016769
Wearing Surfacessq. ft.4,0473,523047252
Substructure
Reinforced Concrete Abutmentlinear ft.113063050
Joints
Assembly with Sealeach5600560
Other Jointlinear ft.5600560
Bearings
Movable Bearingeach60330
Steel Protective Coatingsq. ft.3000300
Fixed Bearingeach60600
Steel Protective Coatingsq. ft.3300330
Bridge Rail
Other Material Bridge Raillinear ft.22510911204
Steel Protective Coatingsq. ft.5670081486