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HWY CAMBRIDGE ST over COMB ORANGE & MBTA/BMRR

Map

Coordinates:
+42.38299, -71.07700
42°22'59" N, 71°04'37" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY CAMBRIDGE ST over COMB ORANGE & MBTA/BMRR
Structure number:B1606638DMUNNBI
Location:0.33 KM W SULLIVAN SQ.
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:86.9 ft. [26.5 m]
Total length:172.9 ft. [52.7 m]
Roadway width between curbs:55.1 ft. [16.8 m]
Deck width edge-to-edge:74.2 ft. [22.6 m]
Vertical clearance above deck:14.4 ft. [4.4 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:26°
Owner:City or Municipal Highway Agency [04]
Year built:1880
Year reconstructed:1972
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:28,400 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 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 minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:70.2 tons [63.8 metric tons]
Inventory rating:38.5 tons [35.0 metric tons]
Sufficiency rating:78.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$6,745,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201578.8FairSatisfactoryFairFairFO28400
July 201377.9FairSatisfactoryFairFairFO35700
July 201177.9FairSatisfactoryFairFairFO35800
July 200977.9FairSatisfactoryFairFairFO35800
July 200777.7FairSatisfactoryFairFairFO38100
July 200577.3FairSatisfactoryFairFairFO41500
July 200377.8FairSatisfactoryGoodFairFO36700
July 200177.7FairSatisfactoryGoodFairFO38100
July 199979.7FairSatisfactorySatisfactoryFairFO19900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,99202,8221673
Steel Protective Coatingsq. ft.27,9150026,3291,586
Deck
Reinforced Concrete Decksq. ft.12,82012,820000
Wearing Surfacessq. ft.9,530009,5300
Substructure
Reinforced Concrete Pier Walllinear ft.7575000
Reinforced Concrete Abutmentlinear ft.87004443
Other Material Abutmentlinear ft.8700870
Joints
Compression Jointlinear ft.110000110
Bearings
Movable Bearingeach34170170
Steel Protective Coatingsq. ft.5000050
Fixed Bearingeach1700170
Steel Protective Coatingsq. ft.2500025
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.3502800700
Steel Protective Coatingsq. ft.1,00501,00500