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I 93 NB B16-NB4 over I 93 SB&CMBRG&MBTA/BMRR

Map 

Coordinates:
+42.38278, -71.07667
42°22'58" N, 71°04'36" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 NB B16-NB4 over I 93 SB&CMBRG&MBTA/BMRR
Structure number:B162813E3DOTNBI
Location:1.1 MI N OF JCT I93&US1
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:212.0 ft. [64.6 m]
Total length:1233.0 ft. [375.8 m]
Roadway width between curbs:64.3 ft. [19.6 m]
Deck width edge-to-edge:71.2 ft. [21.7 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
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 / HS 20 [5]
Number of main spans:10
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: April 2015 

Status:Open, no restriction [A]
Average daily traffic:47,940 [as of 2012]
Truck traffic:9% 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: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:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:60.2 tons [54.7 metric tons]
Inventory rating:36.1 tons [32.8 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:74.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$45,934,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201574.3Functionally obsoleteSatisfactoryFairFair47940
April 201374.3Functionally obsoleteSatisfactoryFairSatisfactory47940
March 201170.0Functionally obsoleteSatisfactoryFairSatisfactory84200
April 200870.0Functionally obsoleteSatisfactoryFairSatisfactory84200