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I 93 NB B5-B10 over COMB MBTA & I 93 SB

Map 

Coordinates:
+42.38139, -71.07667
42°22'53" N, 71°04'36" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 NB B5-B10 over COMB MBTA & I 93 SB
Structure number:B162813DYDOTNBI
Location:.8 MI N OF RAMP I93&US1
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:139.1 ft. [42.4 m]
Total length:549.9 ft. [167.6 m]
Roadway width between curbs:57.1 ft. [17.4 m]
Deck width edge-to-edge:62.0 ft. [18.9 m]
Vertical clearance below bridge:16.7 ft. [5.1 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:5
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: April 2015 

Status:Open, no restriction [A]
Average daily traffic:47,940 [as of 2015]
Truck traffic:9% 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:Better than present minimum criteria [7]
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:51.3 tons [46.6 metric tons]
Inventory rating:30.7 tons [27.9 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:74.2
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$17,876,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201574.2Functionally obsoleteSatisfactorySatisfactoryFair47940
April 201374.2Functionally obsoleteSatisfactorySatisfactoryFair47940
March 201172.8Functionally obsoleteSatisfactoryFairFair59900
April 200872.8Functionally obsoleteSatisfactoryFairFair59900