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I 55 RAMP A over RAMP B AT HIGH ST

Map

Coordinates:
+32.30061, -90.16768
32°18'02" N, 90°10'04" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 55 RAMP A over RAMP B AT HIGH ST
Structure number:170005502509490
Location:1.8 MI N INT I 55 I 20
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:87.9 ft. [26.8 m]
Total length:408.2 ft. [124.4 m]
Roadway width between curbs:28.9 ft. [8.8 m]
Deck width edge-to-edge:31.8 ft. [9.7 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1967
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Concrete continuous [2]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: June 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,900 [as of 2014]
Truck traffic:13% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:76.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$999,999,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2016FairFairFairVery Good390076.5
June 2014FairFairFairVery Good390076.8
July 2012FairFairFairVery Good410076.8
June 2010FairFairFairVery Good410076.8
June 2008FairFairVery GoodVery Good700087.6
October 2006FairFairVery GoodVery Good700090.6
October 2004GoodGoodVery GoodVery Good600091.7
August 2002GoodGoodVery GoodVery Good585091.7
October 2000GoodGoodVery GoodVery Good585091.7
August 1998GoodGoodVery GoodVery Good585091.7
November 1996GoodGoodVery GoodVery Good585092.0
January 1995GoodGoodVery GoodVery Good532092.0
June 1991GoodGoodVery GoodVery Good484092.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Closed Web/Box Girderlinear ft.408407100
Deck
Reinforced Concrete Top Flangesq. ft.12,987011,9871,0000
Substructure
Reinforced Concrete Columneach1515000
Reinforced Concrete Abutmentlinear ft.122117500
Reinforced Concrete Pier Caplinear ft.4848000
Joints
Compression Jointlinear ft.5855003
Assembly without Seal Jointlinear ft.5858000
Bearings
Elastomeric Bearingeach2020000
Movable Bearingeach1010000
Steel Protective Coatingsq. ft.1001000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.816816000