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I 93 NB over I 93 SB

Map

Coordinates:
+42.37222, -71.06778
42°22'20" N, 71°04'04" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 NB over I 93 SB
Structure number:B16600900DOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:143.1 ft. [43.6 m]
Total length:546.9 ft. [166.7 m]
Roadway width between curbs:49.9 ft. [15.2 m]
Deck width edge-to-edge:54.1 ft. [16.5 m]
Vertical clearance below bridge:14.4 ft. [4.4 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:4
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: January 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:78,500 [as of 2012]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:55.1 tons [50.1 metric tons]
Inventory rating:49.0 tons [44.5 metric tons]
Sufficiency rating:74.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$6,889,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201674.0FairGoodGoodSatisfactoryFO78500
January 201474.0FairGoodGoodSatisfactoryFO78500
January 201274.0FairGoodGoodSatisfactoryFO78500
January 201074.4GoodGoodGoodGood-58689

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.1,0941,0682600
Prestressed Concrete Girder/Beamlinear ft.4473975000
Deck
Reinforced Concrete Decksq. ft.27,35025,7091,64100
Wearing Surfacessq. ft.27,35025,7091,64100
Substructure
Reinforced Concrete Columneach96300
Reinforced Concrete Pier Caplinear ft.378037800
Joints
Assembly with Sealeach102102000
Bearings
Elastomeric Bearingeach55000
Movable Bearingeach44000
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,0681,068000