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HWY CAMBRIDGE ST over COMB I 90 & MBTA/CSX

Map

Coordinates:
+42.35633, -71.13073
42°21'23" N, 71°07'51" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY CAMBRIDGE ST over COMB I 90 & MBTA/CSX
Structure number:B160564REDOTNBI
Location:.2 MI W.RAILROAD YDS S101
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:130.3 ft. [39.7 m]
Total length:474.1 ft. [144.5 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:77.1 ft. [23.5 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1964
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:5
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 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:30,100 [as of 2013]
Truck traffic:5% of total traffic
Deck condition:Poor [4 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:Basically intolerable requiring high priority of replacement [2]
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:48.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$18,295,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2017PoorPoorFairFair3010048.5
February 2015PoorPoorFairFair3010048.5
February 2013PoorPoorFairFair3010048.5
February 2011PoorPoorFairSatisfactory1990071.9
November 2008PoorPoorFairSatisfactory1990071.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.6,63806,5331050
Steel Protective Coatingsq. ft.81,7650081,015750
Deck
Reinforced Concrete Decksq. ft.43,230042,9043260
Wearing Surfacessq. ft.32,24431,88953500
Substructure
Reinforced Concrete Columneach1201200
Reinforced Concrete Pier Walllinear ft.3592817170
Reinforced Concrete Abutmentlinear ft.23018718250
Masonry Abutmentlinear ft.1541240300
Reinforced Concrete Pier Caplinear ft.635300275600
Joints
Strip Seal Jointlinear ft.87081303126
Bearings
Movable Bearingeach70030400
Steel Protective Coatingsq. ft.2100090120
Fixed Bearingeach70030400
Steel Protective Coatingsq. ft.2100090120
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.9489341400