+32.30283, -90.16629
32°18'10" N, 90°09'59" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 55 over HIGH STREET
Structure number:11000550250951B
Location:1.9 MI N JCT I 55 I 20
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:50.9 ft. [15.5 m]
Total length:287.1 ft. [87.5 m]
Roadway width between curbs:55.4 ft. [16.9 m]
Deck width edge-to-edge:59.4 ft. [18.1 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:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: June 2014 

Status:Open, no restriction [A]
Average daily traffic:52,500 [as of 2012]
Truck traffic:20% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:61.1 tons [55.5 metric tons]
Inventory rating:52.8 tons [48.0 metric tons]
Sufficiency rating:76.9

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201476.9Not deficientGoodVery GoodVery Good52500
July 201275.7Not deficientGoodVery GoodVery Good74000
June 201075.7Not deficientGoodVery GoodVery Good74000
June 200875.9Not deficientGoodVery GoodVery Good53000
October 200676.0Not deficientGoodVery GoodVery Good52000
October 200490.5Not deficientGoodVery GoodVery Good50000
August 200278.2Not deficientGoodVery GoodVery Good47500
October 200078.6Not deficientGoodVery GoodVery Good40500
August 199878.6Not deficientGoodVery GoodVery Good40500
November 199681.0Not deficientGoodVery GoodVery Good40500
January 199581.0Not deficientGoodVery GoodVery Good34500
June 199181.0Not deficientGoodVery GoodVery Good29980