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US 1 RAMP TC over RR MBTA

Map

Coordinates:
+42.37139, -71.06944
42°22'17" N, 71°04'10" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 1 RAMP TC over RR MBTA
Structure number:B1639282FDOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:152.9 ft. [46.6 m]
Total length:387.2 ft. [118.0 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:36.4 ft. [11.1 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:2002
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Segmental box girder [21]
Deck type:Other [9]
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:56,700 [as of 2014]
Truck traffic:7% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
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:87.3 tons [79.4 metric tons]
Inventory rating:48.5 tons [44.1 metric tons]
Sufficiency rating:82.8
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$1,714,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201682.8FairSatisfactorySatisfactoryGoodFO56700
September 201481.0FairSatisfactorySatisfactoryGoodFO221000
September 201281.0FairSatisfactorySatisfactoryGoodFO221000
March 201081.0FairSatisfactorySatisfactoryGood-221000
January 200881.0FairGoodSatisfactoryGood-174630

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.387038700
Deck
Reinforced Concrete Decksq. ft.16,90216,902000
Wearing Surfacessq. ft.16,90216,902000
Substructure
Reinforced Concrete Columneach54100
Prestressed Concrete Pier Caplinear ft.69343500
Joints
Assembly with Sealeach8383000
Bearings
Elastomeric Bearingeach44000
Movable Bearingeach61500
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.774077400