I0310 over M P RR


+29.93554, -90.37805
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:024504503800058
Location:.05 MI SOUTH OF LA 18
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:125.0 ft. [38.1 m]
Total length:1212.0 ft. [369.4 m]
Roadway width between curbs:34.1 ft. [10.4 m]
Deck width edge-to-edge:36.7 ft. [11.2 m]
Vertical clearance below bridge:28.5 ft. [8.7 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:15
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: September 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:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:56.9 tons [51.7 metric tons]
Inventory rating:33.9 tons [30.8 metric tons]
Sufficiency rating:86.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201686.9GoodGoodVery GoodVery GoodFO4150
October 201486.8GoodGoodVery GoodVery GoodFO4030
November 201287.8GoodGoodVery GoodVery GoodFO3480
December 201087.9GoodGoodGoodVery GoodFO3370
December 200891.9GoodGoodGoodVery Good-3100
November 200691.9GoodGoodGoodVery Good-2920
May 200491.9GoodGoodGoodVery Good-2780
March 200192.7GoodGoodGoodVery Good-2771
December 199894.7GoodGoodGoodVery Good-2771
April 199594.8GoodGoodGoodVery Good-2067
May 199394.9GoodGoodGoodVery Good-971
March 199194.9GoodGoodGoodVery Good-971

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.625625000
Prestressed Concrete Girder/Beamlinear ft.6,5406,540000
Reinforced Concrete Decksq. ft.40,0954,12535,97000
Reinforced Concrete Abutmentlinear ft.100100000
Reinforced Concrete Pileeach1414000
Reinforced Concrete Pier Caplinear ft.462462000
Pourable Jointlinear ft.3333000
Compression Jointlinear ft.9900099
Assembly with Sealeach99790200
Elastomeric Bearingeach174174000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,4302,430000