HWY BOSTON ST over I 93 /US1/ST3


+42.32718, -71.05830
42°19'38" N, 71°03'30" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY BOSTON ST over I 93 /US1/ST3
Structure number:B162663F7DOTNBI
Location:2.4 KM S OF JCT I90&93
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:73.2 ft. [22.3 m]
Total length:152.9 ft. [46.6 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:62.0 ft. [18.9 m]
Vertical clearance below bridge:9.8 ft. [3.0 m]
Skew angle:37°
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:1987
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 18 / H 20 [4]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:11,896 [as of 2018]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 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: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]
Sufficiency rating:74.5
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$5,648,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018FairSatisfactorySatisfactoryGood1189674.5
November 2016FairSatisfactorySatisfactoryGood1910073.6
November 2014FairSatisfactoryFairGood1320062.9
November 2012FairSatisfactoryFairFair1690062.4
November 2010FairSatisfactoryFairFair1690062.4
November 2008FairSatisfactoryFairSatisfactory1690062.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,4901,490000
Steel Protective Coatingsq. ft.13,18713,187000
Reinforced Concrete Decksq. ft.9,4819,474700
Wearing Surfacessq. ft.6,1205,92419600
Reinforced Concrete Columneach64200
Reinforced Concrete Abutmentlinear ft.167167000
Reinforced Concrete Pier Caplinear ft.7268400
Strip Seal Jointlinear ft.9997200
Compression Jointlinear ft.5050000
Movable Bearingeach2019100
Steel Protective Coatingsq. ft.6060000
Fixed Bearingeach2020000
Steel Protective Coatingsq. ft.6060000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.277276100
Steel Protective Coatingsq. ft.1,3851,385000