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I 93 RAMP SN over US 1 RAMP TC & LC

Map

Coordinates:
+42.36972, -71.06528
42°22'11" N, 71°03'55" 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:15.7 ft. [4.8 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 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:28,249 [as of 2010]
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]
Operating rating:108.9 tons [99.0 metric tons]
Inventory rating:57.0 tons [51.8 metric tons]
Sufficiency rating:82.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$4,201,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201582.3GoodGoodGoodGoodFO28249
August 201378.0GoodGoodGoodGoodFO61100
August 201178.0GoodGoodGoodGoodFO174630
July 201178.0GoodVery GoodGoodGoodFO174630
June 200978.0GoodVery GoodGoodGoodFO174630

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.784784000
Deck
Reinforced Concrete Decksq. ft.27,61427,614000
Wearing Surfacessq. ft.27,61427,05356100
Substructure
Reinforced Concrete Columneach66000
Reinforced Concrete Pier Caplinear ft.7878000
Joints
Assembly with Sealeach7171000
Bearings
Elastomeric Bearingeach1414000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,5681,568000