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


+29.89744, -90.39898
29°53'51" N, 90°23'56" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0310 over S.P. R.R. & LA-631
Structure number:024504503803667
Location:.50 MI N. OF US 90
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:110.9 ft. [33.8 m]
Total length:1534.2 ft. [467.6 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:25.9 ft. [7.9 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:20
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: July 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,290 [as of 2015]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
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:63.8 tons [58.0 metric tons]
Inventory rating:38.0 tons [34.5 metric tons]
Sufficiency rating:93.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201693.0GoodGoodGoodGood-4290
July 201493.0GoodGoodGoodGood-4160
August 201293.0GoodGoodGoodGood-3520
August 201093.0FairVery GoodSatisfactoryGood-3460
August 200893.0FairVery GoodSatisfactoryGood-3120
August 200693.0FairVery GoodSatisfactoryGood-2850
April 200493.0FairVery GoodSatisfactoryGood-2740
March 200193.0GoodVery GoodVery GoodVery Good-2992
November 199795.0GoodVery GoodVery GoodVery Good-2992
September 199495.0GoodVery GoodVery GoodVery Good-1700
September 199295.0GoodVery GoodVery GoodVery Good-971
August 199095.0GoodVery GoodVery GoodVery Good-971