I0310 over S.P. R.R. & LA 631


+29.89678, -90.40052
29°53'48" N, 90°24'02" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I0310 over S.P. R.R. & LA 631
Structure number:024504503803756
Location:.5 MI NORTH OF US 90
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:111.9 ft. [34.1 m]
Total length:1319.0 ft. [402.0 m]
Roadway width between curbs:24.9 ft. [7.6 m]
Deck width edge-to-edge:27.9 ft. [8.5 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Owner:State Highway Agency [01]
Year built:1986
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:17
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,290 [as of 2015]
Truck traffic:7% of total traffic
Deck condition:Satisfactory [6 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:Better than present minimum criteria [7]
Underclearances appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:63.4 tons [57.6 metric tons]
Inventory rating:37.6 tons [34.2 metric tons]
Sufficiency rating:98.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201598.0FairSatisfactorySatisfactoryVery Good-4290
December 201487.0FairSatisfactoryFairVery Good-4160
December 201387.0FairSatisfactoryFairVery Good-4030
December 201287.0FairSatisfactoryFairVery Good-3520
December 201187.0FairSatisfactoryFairVery Good-3510
November 201087.0FairVery GoodFairVery Good-3460
December 200971.0PoorVery GoodPoorVery GoodSD3120
November 200869.0PoorVery GoodPoorVery GoodSD3080
November 200771.0PoorVery GoodPoorVery GoodSD3010
May 200671.0PoorVery GoodPoorVery GoodSD2850
April 200471.0PoorVery GoodPoorVery GoodSD2740
March 200171.0PoorVery GoodPoorVery GoodSD2992
November 1997100.0GoodVery GoodVery GoodVery Good-2992
November 1994100.0GoodVery GoodVery GoodVery Good-1700
August 1992100.0GoodVery GoodVery GoodVery Good-971
August 1990100.0GoodVery GoodVery GoodVery Good-971