I 93 SB B5-B10 over RR MBTA/BMRR


+42.38125, -71.07666
42°22'53" N, 71°04'36" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 SB B5-B10 over RR MBTA/BMRR
Structure number:B162813EDDOTNBI
Location:.9 MI N OF JCT I93&US1
Purpose:Carries highway over 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:44.9 ft. [13.7 m]
Deck width edge-to-edge:57.1 ft. [17.4 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Vertical clearance below bridge:32.8 ft. [10.0 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+Mod / HS 20+Mod [6]
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: July 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:87,100 [as of 2017]
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: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]
Sufficiency rating:68.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$15,142,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairSatisfactorySatisfactoryFair8710068.1
July 2015FairSatisfactorySatisfactoryFair4794072.9
July 2013FairSatisfactorySatisfactoryFair4794072.9
March 2011FairSatisfactorySatisfactoryFair6870070.3
April 2008FairSatisfactorySatisfactoryFair6870070.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,7532,7320210
Steel Protective Coatingsq. ft.50,92550,72502000
Steel Stringerlinear ft.1,5931,593000
Steel Protective Coatingsq. ft.11,12311,123000
Reinforced Concrete Decksq. ft.30,94730,9252200
Wearing Surfacessq. ft.17,14617,146000
Steel Floor Beamlinear ft.301301000
Steel Protective Coatingsq. ft.4,0664,066000
Steel Columneach1612040
Steel Protective Coatingsq. ft.27,99227,87201200
Steel Pier Caplinear ft.51143655200
Steel Protective Coatingsq. ft.14,81814,61802000
Open Jointlinear ft.150150000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,0861,0760100