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HWY DARTMOUTH ST over TR ORANGE LINE

Map 

Coordinates:
+42.34728, -71.07595
42°20'50" N, 71°04'33" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY DARTMOUTH ST over TR ORANGE LINE
Structure number:B160854V7MBTNBI
Location:AT BACK BAY STATION
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:71.9 ft. [21.9 m]
Total length:309.7 ft. [94.4 m]
Roadway width between curbs:61.0 ft. [18.6 m]
Deck width edge-to-edge:82.4 ft. [25.1 m]
Vertical clearance below bridge:17.7 ft. [5.4 m]
Skew angle:99°
Owner:Other State Agencies [21]
Year built:1961
Year reconstructed:1981
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2014 

Status:Open, no restriction [A]
Average daily traffic:8,900 [as of 1997]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 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:Basically intolerable requiring high priority of replacement [2]
Scour condition:Bridge not over waterway. [N]
Operating rating:49.0 tons [44.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:76.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$8,611,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201476.9Functionally obsoleteSatisfactoryFairSatisfactory8900
April 201371.8Functionally obsoleteSatisfactoryGoodSatisfactory8900
April 201171.8Functionally obsoleteSatisfactoryGoodSatisfactory8900
April 200971.8Functionally obsoleteGoodGoodGood8900
January 200871.8Functionally obsoleteGoodVery GoodSatisfactory8900
January 200671.8Functionally obsoleteGoodVery GoodSatisfactory8900
February 200371.8Functionally obsoleteGoodVery GoodSatisfactory8900
February 200171.8Functionally obsoleteGoodVery GoodSatisfactory8900
October 199871.8Functionally obsoleteGoodVery GoodSatisfactory8900