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 2014 

Status:Open, no restriction [A]
Average daily traffic:9,070 [as of 2014]
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 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]
Scour condition:Bridge not over waterway. [N]
Operating rating:73.3 tons [66.6 metric tons]
Inventory rating:40.6 tons [36.9 metric tons]
Sufficiency rating:94.1

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201494.1Not deficientGoodVery GoodGood9070
June 201294.1Not deficientGoodGoodGood9160
September 200891.2Not deficientVery GoodVery GoodVery Good8190
August 200694.2Not deficientVery GoodVery GoodVery Good8510
August 200490.2Functionally obsoleteVery GoodVery GoodVery Good7870
July 200290.1Functionally obsoleteVery GoodVery GoodVery Good8320
July 199890.1Functionally obsoleteVery GoodVery GoodVery Good8559
May 199390.4Not deficientVery GoodVery GoodVery Good6800
199384.9Not deficient---37112