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:024504503800055
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:124.0 ft. [37.8 m]
Total length:1256.0 ft. [382.8 m]
Roadway width between curbs:24.9 ft. [7.6 m]
Deck width edge-to-edge:28.2 ft. [8.6 m]
Vertical clearance below bridge:23.6 ft. [7.2 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]
Main span material:Steel [3]
Main span 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:Equal to present desirable criteria [8]
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:84.8 tons [77.1 metric tons]
Inventory rating:45.9 tons [41.7 metric tons]
Sufficiency rating:87.6

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201687.6GoodGoodVery GoodVery GoodFO4150
October 201487.6GoodGoodVery GoodVery GoodFO4030
November 201288.6GoodGoodVery GoodVery GoodFO3480
December 201088.7FairGoodSatisfactoryVery GoodFO3370
December 200892.7FairVery GoodSatisfactoryVery Good-3100
November 200692.7FairVery GoodSatisfactoryVery Good-2920
May 200492.7FairVery GoodSatisfactoryVery Good-2780
August 200192.7FairVery GoodSatisfactoryVery Good-2771
September 199794.7GoodVery GoodGoodVery Good-2771
May 199594.8FairSatisfactoryGoodVery Good-2067
June 199394.9FairSatisfactoryGoodVery Good-971
March 199194.9FairSatisfactoryGoodVery Good-971

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.500500000
Prestressed Concrete Girder/Beamlinear ft.5,1255,125000
Reinforced Concrete Decksq. ft.41,9764,12537,85100
Reinforced Concrete Abutmentlinear ft.4848000
Reinforced Concrete Pileeach1414000
Reinforced Concrete Pier Caplinear ft.528528000
Pourable Jointlinear ft.3333000
Compression Jointlinear ft.9999000
Assembly with Sealeach99750240
Elastomeric Bearingeach152152000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,5442,544000