I 93 SB B10-B16RP over RR MBTA & BMRR


+42.38167, -71.07667
42°22'54" N, 71°04'36" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 SB B10-B16RP over RR MBTA & BMRR
Structure number:B162813CGDOTNBI
Location:.8 MI N OF JCT US1 & I93
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:91.9 ft. [28.0 m]
Total length:395.0 ft. [120.4 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:44.9 ft. [13.7 m]
Vertical clearance below bridge:25.9 ft. [7.9 m]
Skew angle:99°
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:5
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:19,554 [as of 2010]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 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:Superior to present desirable criteria [9]
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:64.6 tons [58.7 metric tons]
Inventory rating:38.7 tons [35.2 metric tons]
Sufficiency rating:92.1
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$1,868,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201592.1FairSatisfactorySatisfactorySatisfactoryFO19554
July 201392.1FairSatisfactorySatisfactorySatisfactoryFO19554
March 201192.7FairSatisfactorySatisfactorySatisfactoryFO13000
May 200892.7FairSatisfactorySatisfactorySatisfactoryFO13000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,2832,280030
Steel Protective Coatingsq. ft.22,35122,342630
Reinforced Concrete Decksq. ft.22,76122,66110000
Wearing Surfacessq. ft.22,17421,174990100
Steel Columneach1817010
Steel Protective Coatingsq. ft.5,5355,523660
Steel Pier Caplinear ft.54846172150
Steel Protective Coatingsq. ft.16,3305,8107,8902,6300
Open Jointlinear ft.7575000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.5745630110