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I 55 RAMP A over RAMP B AT HIGH ST

Map

Coordinates:
+32.30227, -90.16647
32°18'08" N, 90°09'59" 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:16.1 ft. [4.9 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]
Inventory rating:72.7 tons [66.1 metric tons]
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

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201676.5FairFairFairVery Good-3900
June 201476.8FairFairFairVery Good-3900
July 201276.8FairFairFairVery Good-4100
June 201076.8FairFairFairVery Good-4100
June 200887.6FairFairVery GoodVery Good-7000
October 200690.6FairFairVery GoodVery Good-7000
October 200491.7GoodGoodVery GoodVery Good-6000
August 200291.7GoodGoodVery GoodVery Good-5850
October 200091.7GoodGoodVery GoodVery Good-5850
August 199891.7GoodGoodVery GoodVery Good-5850
November 199692.0GoodGoodVery GoodVery Good-5850
January 199592.0GoodGoodVery GoodVery Good-5320
June 199192.0GoodGoodVery GoodVery Good-4840