I0310 over ICG.RR, RAMP E,F,&H, LA4


+29.95406, -90.36736
29°57'15" N, 90°22'02" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0310 over ICG.RR, RAMP E,F,&H, LA4
Structure number:024504503606221
Location:5.14 MI S I-10, I-310 JCT
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:266.1 ft. [81.1 m]
Total length:5145.3 ft. [1568.2 m]
Roadway width between curbs:76.1 ft. [23.2 m]
Deck width edge-to-edge:82.0 ft. [25.0 m]
Vertical clearance below bridge:24.0 ft. [7.3 m]
Owner:State Highway Agency [01]
Year built:1983
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:5
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: September 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:50,500 [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:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:50.5 tons [45.9 metric tons]
Inventory rating:30.7 tons [27.9 metric tons]
Sufficiency rating:80.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201580.9FairGoodSatisfactorySatisfactory-50500
September 201380.9FairGoodSatisfactorySatisfactory-49000
October 201180.9FairGoodSatisfactorySatisfactory-41500
November 200980.9GoodGoodGoodGood-37600
August 200780.9GoodGoodVery GoodVery Good-34900
February 200580.9GoodGoodVery GoodVery Good-31900
March 200183.7GoodGoodVery GoodVery Good-35868
August 199583.7GoodGoodGoodVery Good-35868

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.15,70014,2001,50000
Prestressed Concrete Girder/Beamlinear ft.52,99514,67038,32500
Reinforced Concrete Decksq. ft.448,280111,905336,37500
Steel Pin or Pin & Hangar Assemblyeach1616000
Reinforced Concrete Pier Walllinear ft.77000
Reinforced Concrete Abutmentlinear ft.8585000
Reinforced Concrete Pileeach1555610890
Reinforced Concrete Pier Caplinear ft.4,4401,3053,13500
Compression Jointlinear ft.595385700140
Assembly with Sealeach1,1051,05001045
Elastomeric Bearingeach1,1731,1590140
Movable Bearingeach48024240
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.20,67220,672000