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I 93 SB over COMB I90 & AMTRAK

Map 

Coordinates:
+42.34528, -71.06083
42°20'43" N, 71°03'39" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 SB over COMB I90 & AMTRAK
Structure number:B166569Q6DOTNBI
Location:UNIT 4
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:205.4 ft. [62.6 m]
Total length:633.9 ft. [193.2 m]
Roadway width between curbs:55.1 ft. [16.8 m]
Deck width edge-to-edge:57.4 ft. [17.5 m]
Vertical clearance below bridge:28.5 ft. [8.7 m]
Owner:State Highway Agency [01]
Year built:2000
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
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: August 2015 

Status:Open, no restriction [A]
Average daily traffic:106,231 [as of 2011]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:50.7 tons [46.1 metric tons]
Inventory rating:30.4 tons [27.6 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:62.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$19,114,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201562.6Functionally obsoleteGoodSatisfactoryGood106231
August 201362.6Functionally obsoleteGoodGoodGood106231
August 201167.9Functionally obsoleteGoodGoodGood91800
June 200967.9Functionally obsoleteGoodGoodGood91800