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HWY CAMBRIDGE ST over COMB I 90 & MBTA/CSX

Map

Coordinates:
+42.35611, -71.13056
42°21'22" N, 71°07'50" 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:14.8 ft. [4.5 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]
Operating rating:47.9 tons [43.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
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

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201748.5PoorPoorFairFairSD30100
February 201548.5PoorPoorFairFairSD30100
February 201348.5PoorPoorFairFairSD30100
February 201171.9PoorPoorFairSatisfactorySD19900
November 200871.9PoorPoorFairSatisfactorySD19900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.6,52406,4191050
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.39,3674,48234,88500
Substructure
Reinforced Concrete Columneach1201200
Reinforced Concrete Pier Walllinear ft.361356500
Reinforced Concrete Abutmentlinear ft.231023100
Masonry Abutmentlinear ft.154609400
Reinforced Concrete Pier Caplinear ft.6923462071390
Joints
Strip Seal Jointlinear ft.870087000
Bearings
Movable Bearingeach7007000
Steel Protective Coatingsq. ft.999999000
Fixed Bearingeach7007000
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.9599490100