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I 93 RAMP LC-N over I 93 RAMP S-N BOAT

Map

Coordinates:
+42.36639, -71.06667
42°21'59" N, 71°04'00" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 RAMP LC-N over I 93 RAMP S-N BOAT
Structure number:B166916K2DOTNBI
Location:UNIT 1
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:146.3 ft. [44.6 m]
Total length:396.0 ft. [120.7 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:29.9 ft. [9.1 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:State Highway Agency [01]
Year built:2003
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:Steel continuous [4]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: December 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:8,756 [as of 2013]
Truck traffic:5% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present desirable criteria [8]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:38.3 tons [34.8 metric tons]
Inventory rating:23.0 tons [20.9 metric tons]
Sufficiency rating:80.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$6,200,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201580.3GoodGoodGoodGoodFO8756
December 201380.3GoodGoodGoodGoodFO8756
December 201180.3GoodGoodGoodGood-8756
December 200935.0FairGoodSatisfactoryVery Good-8756

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.517517000
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.10,26910,269000
Wearing Surfacessq. ft.10,26910,269000
Substructure
Reinforced Concrete Columneach33000
Joints
Assembly with Sealeach104104000
Bearings
Movable Bearingeach77000
Steel Protective Coatingsq. ft.999999000
Fixed Bearingeach11000
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.7927137900