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I 93 RAMP SN over TR MBTA ORANGE LINE

Map

Coordinates:
+42.38172, -71.07697
42°22'54" N, 71°04'37" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 RAMP SN over TR MBTA ORANGE LINE
Structure number:B166059E8DOTNBI
Location:I93 US1 INTERCHANGE
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:81.7 ft. [24.9 m]
Total length:81.7 ft. [24.9 m]
Roadway width between curbs:22.0 ft. [6.7 m]
Deck width edge-to-edge:25.9 ft. [7.9 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1999
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Main span material:Steel [3]
Main span 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: September 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:19,452 [as of 2016]
Truck traffic:4% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:95.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$388,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016GoodVery GoodGoodVery Good1945295.3
September 2014GoodVery GoodGoodVery Good1850095.4
September 2012GoodVery GoodGoodVery Good1850095.4
March 2010GoodVery GoodGoodGood1850095.4
December 2007GoodVery GoodVery GoodVery Good-98.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1521381400
Steel Protective Coatingsq. ft.2,6802,680000
Deck
Reinforced Concrete Decksq. ft.1,9601,960000
Wearing Surfacessq. ft.1,9601,960000
Substructure
Steel Columneach22000
Steel Protective Coatingsq. ft.1,0001,000000
Reinforced Concrete Columneach11000
Steel Pier Caplinear ft.5252000
Steel Protective Coatingsq. ft.1,5001,500000
Reinforced Concrete Pier Caplinear ft.1818000
Joints
Strip Seal Jointlinear ft.2525000
Assembly with Sealeach2525000
Bearings
Movable Bearingeach22000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.8080000
Reinforced Concrete Bridge Raillinear ft.160158200