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I 93 SB BT 57-61 over RR MBTA & BMRR

Map 

Coordinates:
+42.37917, -71.07639
42°22'45" N, 71°04'35" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 SB BT 57-61 over RR MBTA & BMRR
Structure number:B162813BUDOTNBI
Location:.5 MI N OF JCT 193&US1
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:83.0 ft. [25.3 m]
Total length:335.0 ft. [102.1 m]
Roadway width between curbs:44.3 ft. [13.5 m]
Deck width edge-to-edge:89.6 ft. [27.3 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Vertical clearance below bridge:19.0 ft. [5.8 m]
Owner:State Highway Agency [01]
Year built:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2014 

Status:Open, no restriction [A]
Average daily traffic:68,700 [as of 2005]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
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:62.0 tons [56.4 metric tons]
Inventory rating:37.2 tons [33.8 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:55.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$15,832,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201455.7Functionally obsoleteSatisfactorySatisfactoryFair68700
November 201255.7Functionally obsoleteSatisfactorySatisfactoryFair68700
March 201255.7Functionally obsoleteSatisfactorySatisfactoryFair68700
March 201055.7Functionally obsoleteSatisfactorySatisfactoryFair68700
February 201055.7Functionally obsoleteSatisfactorySatisfactoryFair68700