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I 93 RAMP SN over TR MBTA ORANGE LINE

Map

Coordinates:
+42.38194, -71.07694
42°22'55" 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]
Operating rating:78.9 tons [71.7 metric tons]
Inventory rating:47.2 tons [42.9 metric tons]
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

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201695.3GoodVery GoodGoodVery Good-19452
September 201495.4GoodVery GoodGoodVery Good-18500
September 201295.4GoodVery GoodGoodVery Good-18500
March 201095.4GoodVery GoodGoodGood-18500
December 200798.0GoodVery GoodVery GoodVery Good--

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.152015200
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.1,9601,960000
Wearing Surfacessq. ft.1,9601,960000
Substructure
Steel Columneach20200
Steel Protective Coatingsq. ft.999999000
Reinforced Concrete Columneach11000
Steel Pier Caplinear ft.5205200
Steel Protective Coatingsq. ft.999999000
Reinforced Concrete Pier Caplinear ft.1818000
Joints
Strip Seal Jointlinear ft.2525000
Assembly with Sealeach2525000
Bearings
Movable Bearingeach22000
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.8080000
Reinforced Concrete Bridge Raillinear ft.160158200