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I 93 NB over I 93 SB BT 46 - 57

Map 

Coordinates:
+42.37778, -71.07556
42°22'40" N, 71°04'32" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 NB over I 93 SB BT 46 - 57
Structure number:B162813BMDOTNBI
Location:.5 MI N OF JCT I93&US1
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:82.0 ft. [25.0 m]
Total length:898.0 ft. [273.7 m]
Roadway width between curbs:62.0 ft. [18.9 m]
Deck width edge-to-edge:68.9 ft. [21.0 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Vertical clearance below bridge:14.8 ft. [4.5 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 / HS 20 [5]
Number of main spans:11
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 2014 

Status:Open, no restriction [A]
Average daily traffic:74,200 [as of 2014]
Truck traffic:20% of total traffic
Deck condition:Fair [5 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: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:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:60.6 tons [55.1 metric tons]
Inventory rating:36.3 tons [33.0 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:76.0
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$9,976,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201476.0Functionally obsoleteFairSatisfactorySatisfactory74200
April 201277.0Functionally obsoleteSatisfactorySatisfactorySatisfactory74200
April 201077.0Functionally obsoleteSatisfactorySatisfactorySatisfactory96400
March 200877.0Functionally obsoleteSatisfactorySatisfactorySatisfactory96400