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I 93 RAMP SN over US 1 RAMP TC & LC

Map

Coordinates:
+42.37067, -71.06618
42°22'14" N, 71°03'58" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 RAMP SN over US 1 RAMP TC & LC
Structure number:B166078YPDOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:144.0 ft. [43.9 m]
Total length:782.8 ft. [238.6 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:36.1 ft. [11.0 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:1999
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:6
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: August 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:37,301 [as of 2016]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
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:79.6
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$3,865,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017GoodGoodGoodGood3730179.6
August 2015GoodGoodGoodGood2824982.3
August 2013GoodGoodGoodGood6110078.0
August 2011GoodGoodGoodGood17463078.0
July 2011GoodVery GoodGoodGood17463078.0
June 2009GoodVery GoodGoodGood17463078.0

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.7847503400
Deck
Prestressed Concrete Top Flangesq. ft.27,83227,832000
Wearing Surfacessq. ft.25,87225,3034451240
Substructure
Reinforced Concrete Columneach86020
Prestressed Concrete Pier Caplinear ft.7878000
Joints
Assembly with Sealeach7171000
Bearings
Elastomeric Bearingeach1410400
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,5681,567100