I0310 over US 61/RR/SWAMP/LA 626


+30.00135, -90.29419
30°00'05" N, 90°17'39" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I0310 over US 61/RR/SWAMP/LA 626
Structure number:024504503600412
Location:0.41 M SOUTH OF I-10
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:89.9 ft. [27.4 m]
Total length:25756.2 ft. [7850.1 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:43.0 ft. [13.1 m]
Vertical clearance above deck:16.7 ft. [5.1 m]
Vertical clearance below bridge:15.4 ft. [4.7 m]
Owner:State Highway Agency [01]
Year built:1992
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:465
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: October 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:30,300 [as of 2015]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:55.9 tons [50.8 metric tons]
Inventory rating:33.9 tons [30.8 metric tons]
Sufficiency rating:83.1

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201683.1FairSatisfactoryFairSatisfactory-30300
October 201582.9FairSatisfactoryFairSatisfactory-30300
October 201482.2FairSatisfactoryFairGood-37080
October 201382.3FairSatisfactoryFairGood-36000
November 201294.3FairSatisfactorySatisfactoryGood-31200
October 201182.9FairSatisfactoryFairGood-30660
November 200983.1FairGoodFairGood-28380
July 200883.3FairSatisfactoryFairSatisfactory-26820
August 200783.3FairSatisfactoryFairSatisfactory-26520
January 200566.8PoorSatisfactoryPoorSatisfactorySD24600
January 200366.7PoorSatisfactoryPoorSatisfactorySD25140
September 199968.6PoorGoodPoorGood-26068
March 199770.2PoorGoodPoorGood-20534
April 199498.0GoodGood---26704