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HWY BOSTON ST over I 93 /US1/ST3

Map 

Coordinates:
+42.32694, -71.05861
42°19'37" N, 71°03'31" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY BOSTON ST over I 93 /US1/ST3
Structure number:B162663F7DOTNBI
Location:2.4 KM S OF JCT I90&93
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:73.2 ft. [22.3 m]
Total length:152.9 ft. [46.6 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:13.1 ft. [4.0 m]
Skew angle:37°
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:1987
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 18 / H 20 [4]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: November 2014 

Status:Open, no restriction [A]
Average daily traffic:13,200 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 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:66.6 tons [60.5 metric tons]
Inventory rating:63.5 tons [57.7 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:62.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,209,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201462.9Functionally obsoleteSatisfactoryFairGood13200
November 201262.4Functionally obsoleteSatisfactoryFairFair16900
November 201062.4Functionally obsoleteSatisfactoryFairFair16900
November 200862.4Functionally obsoleteSatisfactoryFairSatisfactory16900