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HWY BOSTON ST over TR AMTRAK & RED LINE

Map 

Coordinates:
+42.32762, -71.05808
42°19'39" N, 71°03'29" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY BOSTON ST over TR AMTRAK & RED LINE
Structure number:B161284VLMBTNBI
Location:.04 M.OF I93
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:72.5 ft. [22.1 m]
Total length:78.1 ft. [23.8 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:62.0 ft. [18.9 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:38°
Owner:Other State Agencies [21]
Year built:1977
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Prestressed concrete [5]
Main span design:Box beam or girders - Multiple [05]
Deck type:Other [9]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2014 

Status:Open, no restriction [A]
Average daily traffic:15,300 [as of 2012]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Superior to present desirable criteria [9]
Scour condition:Bridge not over waterway. [N]
Operating rating:73.9 tons [67.2 metric tons]
Inventory rating:44.3 tons [40.3 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:90.5
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$391,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201490.5Functionally obsoleteSatisfactorySatisfactorySatisfactory15300
December 201290.5Functionally obsoleteSatisfactorySatisfactorySatisfactory15300
August 201293.1Functionally obsoleteFairGoodSatisfactory8900
August 201093.1Functionally obsoleteFairGoodSatisfactory8900
July 200894.1Functionally obsoleteSatisfactoryGoodSatisfactory8900
July 200694.1Functionally obsoleteSatisfactoryGoodSatisfactory8900
July 200494.1Functionally obsoleteSatisfactoryGoodSatisfactory8900
July 200294.1Functionally obsoleteSatisfactoryGoodSatisfactory8900
August 200094.1Functionally obsoleteSatisfactoryGoodSatisfactory8900
August 199894.1Functionally obsoleteSatisfactoryGoodSatisfactory8900