I0310 over RAMP"C" FROM I 310 SB


+29.93221, -90.37999
29°55'56" N, 90°22'48" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0310 over RAMP"C" FROM I 310 SB
Structure number:024504503800361
Location:.36 MI SOUTH OF LA 18
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:92.9 ft. [28.3 m]
Total length:1290.1 ft. [393.2 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:41.3 ft. [12.6 m]
Vertical clearance below bridge:22.6 ft. [6.9 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:16
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:24,900 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:54.9 tons [49.9 metric tons]
Inventory rating:32.9 tons [29.9 metric tons]
Sufficiency rating:83.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201683.7FairGoodSatisfactoryGood-24900
October 201483.9FairGoodSatisfactoryGood-24180
December 201285.6FairGoodSatisfactoryGood-20880
January 201186.0FairGoodSatisfactoryGood-20220
July 200886.8GoodGoodGoodGood-18600
May 200687.4FairGoodGoodSatisfactory-17520
October 200387.4FairGoodGoodSatisfactory-17520
August 200277.0FairGoodGoodFair-16920
July 199891.4GoodGoodGoodGood-16629
June 199589.1GoodGoodGoodGood-20677
November 199294.9GoodGoodGoodGood-9712
March 199194.9GoodGoodGoodGood-9712

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Girder/Beamlinear ft.7,74007,74000
Reinforced Concrete Decksq. ft.51,60051,600000
Reinforced Concrete Abutmentlinear ft.6060000
Reinforced Concrete Pileeach3333000
Reinforced Concrete Pier Caplinear ft.640640000
Pourable Jointlinear ft.4040000
Compression Jointlinear ft.120120000
Assembly with Sealeach4040000
Elastomeric Bearingeach5959000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,5802,580000