I 93 SB BT 61-B5 over RR BMRR


+42.37972, -71.07648
42°22'47" N, 71°04'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 SB BT 61-B5 over RR BMRR
Structure number:B162813BVDOTNBI
Old structure number:3BV09383607V101 (from 1992 edition)
Location:0.24 MI S OF CAMBRIDGE ST
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:83.0 ft. [25.3 m]
Total length:486.9 ft. [148.4 m]
Roadway width between curbs:44.6 ft. [13.6 m]
Deck width edge-to-edge:57.1 ft. [17.4 m]
Vertical clearance above deck:14.8 ft. [4.5 m]
Vertical clearance below bridge:36.1 ft. [11.0 m]
Owner:State Highway Agency [01]
Year built:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:6
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: July 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:87,100 [as of 2016]
Truck traffic:6% 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:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:51.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$13,919,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2016FairSatisfactorySatisfactoryFair8710051.0
July 2014FairSatisfactorySatisfactoryFair7210052.7
July 2012FairSatisfactorySatisfactoryFair7210057.6
March 2010FairSatisfactorySatisfactoryFair7210057.6
August 1999FairSatisfactorySatisfactoryFair6400058.7
June 1997FairSatisfactorySatisfactorySatisfactory5420072.5
March 1995FairSatisfactorySatisfactorySatisfactory12778981.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,4621,35680260
Steel Protective Coatingsq. ft.21,92521,33525025090
Steel Stringerlinear ft.2,4362,436000
Steel Protective Coatingsq. ft.16,52016,520000
Reinforced Concrete Decksq. ft.27,76927,63901300
Wearing Surfacessq. ft.24,35924,359000
Steel Floor Beamlinear ft.502502000
Steel Protective Coatingsq. ft.6,3006,300000
Steel Columneach1813140
Steel Protective Coatingsq. ft.10,05010,050000
Steel Pier Caplinear ft.581293462420
Steel Protective Coatingsq. ft.12,0509,8001,4008500
Open Jointlinear ft.114114000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.97494618100
Reinforced Concrete Bridge Raillinear ft.974820118360