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I 93 NB over I 93 SB

Suffolk County, Massachusetts

Map

Coordinates:
+42.37222, -71.06778
42°22'20" N, 71°04'04" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:I 93 NB over I 93 SB
Structure number:B16600900DOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:143.1 ft. [43.6 m]
Total length:546.9 ft. [166.7 m]
Roadway width between curbs:49.9 ft. [15.2 m]
Deck width edge-to-edge:54.1 ft. [16.5 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Owner:State Highway Agency [01]
Year built:2003
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:4
Main spans material:Prestressed concrete continuous [6]
Main spans design:Segmental box girder [21]
Deck type:Other [9]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: January 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:78,500 [as of 2012]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 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:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:55.1 tons [50.1 metric tons]
Inventory rating:49.0 tons [44.5 metric tons]
Sufficiency rating:74.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$6,889,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201674.0FairGoodGoodSatisfactoryFO78500
January 201474.0FairGoodGoodSatisfactoryFO78500
January 201274.0FairGoodGoodSatisfactoryFO78500
January 201074.4GoodGoodGoodGood-58689