+29.94553, -90.37233
29°56'44" N, 90°22'20" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Structure number:024504503700001
Location:I-310 OVER LA 48 AND LA 1
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:1235.0 ft. [376.4 m]
Total length:2745.2 ft. [836.7 m]
Roadway width between curbs:76.4 ft. [23.3 m]
Deck width edge-to-edge:92.5 ft. [28.2 m]
Vertical clearance below bridge:132.9 ft. [40.5 m]
Owner:State Highway Agency [01]
Year built:1983
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:5
Main spans material:Steel continuous [4]
Main spans design:Stayed girder [14]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: February 2017 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:54,800 [as of 2015]
Truck traffic:10% of total traffic
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:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:In place and functioning [2]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:61.8 tons [56.2 metric tons]
Inventory rating:37.0 tons [33.6 metric tons]
Sufficiency rating:70.0

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201770.0GoodGoodGoodGood-54800
February 201570.0GoodGoodGoodGood-54800
February 201370.0GoodGoodGoodGood-44600
February 201236.0PoorGoodSeriousGoodSD44400
February 201136.0PoorGoodSeriousGoodSD43800
November 200936.0PoorGoodSeriousGoodSD39800
August 200836.0PoorGoodSeriousGoodSD39600
May 200736.0PoorGoodSeriousGoodSD39000
April 200470.0FairGoodSatisfactoryGood-41900
March 200170.0FairGoodSatisfactoryGood-39892
April 199770.0FairGoodSatisfactoryGood-39892
December 199470.0FairSatisfactorySatisfactoryGood-31021
March 199170.0FairGoodSatisfactoryGood-9712