I0310 over RAMP "A"


+29.93324, -90.37941
29°55'60" N, 90°22'46" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I0310 over RAMP "A"
Structure number:024504503800207
Location:.2 MI SOUTH OF LA 18
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:94.2 ft. [28.7 m]
Total length:1472.2 ft. [448.7 m]
Roadway width between curbs:24.9 ft. [7.6 m]
Deck width edge-to-edge:28.2 ft. [8.6 m]
Vertical clearance above deck:23.3 ft. [7.1 m]
Vertical clearance below bridge:21.0 ft. [6.4 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:18
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: October 2016 

Good/Fair/Poor Condition:Fair
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:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:64.9 tons [59.0 metric tons]
Inventory rating:37.7 tons [34.3 metric tons]
Sufficiency rating:86.6

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201686.6FairGoodFairFair-4150
October 201586.6FairGoodFairFair-4150
October 201486.6FairGoodFairFair-4030
October 201386.6FairGoodFairFair-3900
November 201286.6FairGoodFairGood-3480
October 201170.5PoorGoodPoorGoodSD3450
January 201186.6FairGoodFairGood-3370
October 200986.7FairGoodFairGood-3100
July 200886.7FairGoodFairGood-3070
August 200786.7FairSatisfactoryFairGood-3000
May 200686.7FairSatisfactoryFairGood-2920
December 200486.7FairSatisfactoryFairGood-2780
August 200297.7FairSatisfactorySatisfactoryGood-2820
July 199899.7GoodGoodGoodGood-2771
May 199599.8GoodGoodGoodGood-2067
June 199399.9GoodGoodGoodGood-971
March 199199.9GoodGoodGoodGood-971