I0310 over I-10/I-310/SWAMP


+30.00149, -90.29439
30°00'05" N, 90°17'40" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0310 over I-10/I-310/SWAMP
Structure number:024504503600408
Location:0.4 M SOUTH OF I-10
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:80.1 ft. [24.4 m]
Total length:4815.2 ft. [1467.6 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Owner:State Highway Agency [01]
Year built:1992
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:66
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: September 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:6,370 [as of 2015]
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:64.4 tons [58.5 metric tons]
Inventory rating:34.7 tons [31.5 metric tons]
Sufficiency rating:95.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201595.7GoodGoodVery GoodVery Good-6370
September 201395.7GoodGoodVery GoodVery Good-6180
October 201195.7GoodVery GoodVery GoodVery Good-5110
November 200995.7GoodVery GoodVery GoodVery Good-4730
August 200795.7GoodVery GoodVery GoodVery Good-4420
December 200296.0GoodVery GoodVery GoodVery Good-4190
August 199998.0GoodVery GoodVery GoodVery Good-4344
December 199698.0GoodVery GoodVery GoodVery Good-3422
April 199498.0GoodVery Good---4450

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Girder/Beamlinear ft.19,32819,328000
Reinforced Concrete Decksq. ft.144,3790144,37900
Prestressed Concrete Pileeach8282000
Reinforced Concrete Pileeach9494000
Reinforced Concrete Pier Caplinear ft.2,0842,084000
Compression Jointlinear ft.3434000
Open Jointlinear ft.469469000
Elastomeric Bearingeach536536000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.9,5129,512000