US0090B over LA 428/US 90B/RAMPS/STS


+29.93053, -90.03758
29°55'50" N, 90°02'15" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US0090B over LA 428/US 90B/RAMPS/STS
Structure number:023602830804157
Location:1.74 MI SOUTH OF MISS. RI
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:244.1 ft. [74.4 m]
Total length:3164.2 ft. [964.4 m]
Roadway width between curbs:22.0 ft. [6.7 m]
Deck width edge-to-edge:24.9 ft. [7.6 m]
Vertical clearance above deck:19.4 ft. [5.9 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:6
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: June 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:16,980 [as of 2015]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:73.8 tons [67.1 metric tons]
Inventory rating:40.9 tons [37.2 metric tons]
Sufficiency rating:93.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201693.3GoodGoodGoodGood-16980
June 201494.1GoodGoodVery GoodGood-9070
June 201294.1GoodGoodGoodGood-9160
September 200891.2GoodVery GoodVery GoodVery Good-8190
August 200694.2GoodVery GoodVery GoodVery Good-8510
August 200490.2GoodVery GoodVery GoodVery GoodFO7870
July 200290.1GoodVery GoodVery GoodVery GoodFO8320
July 199890.1GoodVery GoodVery GoodVery GoodFO8559
May 199390.4GoodVery GoodVery GoodVery Good-6800