I0310 over M P RR


+29.93560, -90.37819
29°56'08" N, 90°22'41" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0310 over M P RR
Structure number:024504503800206
Location:.2 MI SOUTH OF LA 18
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:129.9 ft. [39.6 m]
Total length:1395.1 ft. [425.2 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:29.2 ft. [8.9 m]
Vertical clearance below bridge:22.6 ft. [6.9 m]
Owner:State Highway Agency [01]
Year built:1979
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:13
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,150 [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:Equal to present desirable criteria [8]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:54.9 tons [49.9 metric tons]
Inventory rating:32.9 tons [29.9 metric tons]
Sufficiency rating:92.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201692.3GoodGoodGoodGoodFO4150
October 201492.2GoodGoodGoodGoodFO4030
November 201292.2GoodGoodGoodGoodFO3480
December 201092.2GoodGoodGoodGoodFO3370
July 200896.3GoodGoodGoodGood-3100
May 200696.3GoodGoodVery GoodGood-2920
October 200396.3GoodGoodVery GoodVery Good-2920
March 200197.7GoodGoodVery GoodVery Good-2771
September 199799.7GoodGoodVery GoodVery Good-2771
March 199599.9GoodGoodVery GoodVery Good-1951
December 199299.9GoodGoodVery GoodVery Good-971
May 198599.9GoodGoodVery GoodVery Good-971

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.3,9523,952000
Prestressed Concrete Girder/Beamlinear ft.1,4761,476000
Reinforced Concrete Decksq. ft.37,99637,996000
Reinforced Concrete Pileeach1212000
Reinforced Concrete Pier Caplinear ft.344344000
Compression Jointlinear ft.5656000
Assembly with Sealeach112112000
Elastomeric Bearingeach104104000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,7142,714000