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: October 2014 

Status:Open, no restriction [A]
Average daily traffic:4,030 [as of 2014]
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:84.2 tons [76.5 metric tons]
Inventory rating:45.5 tons [41.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:87.6

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201487.6Functionally obsoleteGoodVery GoodVery Good4030
November 201288.6Functionally obsoleteGoodVery GoodVery Good3480
December 201088.7Functionally obsoleteGoodSatisfactoryVery Good3370
December 200892.7Not deficientVery GoodSatisfactoryVery Good3100
November 200692.7Not deficientVery GoodSatisfactoryVery Good2920
May 200492.7Not deficientVery GoodSatisfactoryVery Good2780
August 200192.7Not deficientVery GoodSatisfactoryVery Good2771
September 199794.7Not deficientVery GoodGoodVery Good2771
May 199594.8Not deficientSatisfactoryGoodVery Good2067
June 199394.9Not deficientSatisfactoryGoodVery Good971
March 199194.9Not deficientSatisfactoryGoodVery Good971