I0310 over LA 18 & 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 LA 18 & M. P. RR
Structure number:024504503800001
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:200.1 ft. [61.0 m]
Total length:1900.0 ft. [579.1 m]
Roadway width between curbs:76.1 ft. [23.2 m]
Deck width edge-to-edge:87.3 ft. [26.6 m]
Vertical clearance below bridge:92.2 ft. [28.1 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:14
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: October 2014 

Status:Open, no restriction [A]
Average daily traffic:40,300 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:56.4 tons [51.3 metric tons]
Inventory rating:33.7 tons [30.6 metric tons]
Sufficiency rating:74.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201474.2Not deficientGoodSatisfactoryVery Good40300
December 201274.2Not deficientGoodSatisfactoryVery Good34800
January 201174.2Not deficientGoodGoodVery Good33700
July 200874.2Not deficientGoodGoodVery Good31000
May 200674.2Not deficientGoodGoodVery Good29200
October 200374.2Not deficientVery GoodGoodVery Good29200
March 200175.0Not deficientSatisfactoryGoodVery Good27716
September 199775.0Not deficientSatisfactoryGoodVery Good27716
May 198675.0Not deficientGoodGoodGood9712