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I 93 RAMPS SN NS over RR MBTA

Map

Coordinates:
+42.37889, -71.07639
42°22'44" N, 71°04'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 RAMPS SN NS over RR MBTA
Structure number:B166059TXDOTNBI
Location:I93 US1 INTERCHANGE
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:147.0 ft. [44.8 m]
Total length:434.1 ft. [132.3 m]
Roadway width between curbs:50.9 ft. [15.5 m]
Deck width edge-to-edge:56.8 ft. [17.3 m]
Vertical clearance below bridge:40.0 ft. [12.2 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1999
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: September 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:57,676 [as of 2016]
Truck traffic:4% of total traffic
Deck condition:Good [7 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:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:92.2 tons [83.8 metric tons]
Inventory rating:55.2 tons [50.2 metric tons]
Sufficiency rating:83.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$4,972,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201683.0FairGoodSatisfactoryGood-57676
September 201483.0FairGoodSatisfactoryGood-94900
September 201292.8GoodVery GoodGoodGood-11000
March 201092.8GoodVery GoodGoodGood-11000
December 200796.0GoodVery GoodVery GoodGood--

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Closed Web/Box Girderlinear ft.1,2421,11812400
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.27,18225,5511,63100
Wearing Surfacessq. ft.27,18225,5511,63100
Substructure
Reinforced Concrete Columneach77000
Reinforced Concrete Pier Caplinear ft.1991267300
Joints
Assembly with Sealeach109921700
Bearings
Fixed Bearingeach66000
Steel Protective Coatingsq. ft.999999000
Pot Bearingeach66000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.868868000
Reinforced Concrete Bridge Raillinear ft.1,30201,30200