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US 1 RAMP S-TB over COMB RMP NS CT TL&MBTA

Map

Coordinates:
+42.37228, -71.06866
42°22'20" N, 71°04'07" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 1 RAMP S-TB over COMB RMP NS CT TL&MBTA
Structure number:B166118Y3DOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:163.1 ft. [49.7 m]
Total length:696.9 ft. [212.4 m]
Roadway width between curbs:24.9 ft. [7.6 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:2001
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:5
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:44,700 [as of 2007]
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Sufficiency rating:81.9
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$824,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016FairGoodSatisfactoryGood4470081.9
September 2014FairGoodSatisfactoryGood1150088.7
September 2012FairGoodSatisfactoryGood1150088.7
May 2010GoodGoodGoodGood1150088.7
February 2008GoodGoodGoodVery Good-91.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.69758694170
Deck
Prestressed Concrete Top Flangesq. ft.18,90018,78761520
Wearing Surfacessq. ft.18,90016,0211,9319480
Substructure
Prestressed Concrete Columneach65010
Reinforced Concrete Pier Caplinear ft.48231960
Joints
Assembly with Sealeach54034200
Bearings
Elastomeric Bearingeach125610
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,3941,390220