I0055 over I-10 & US 51 & SWAMP


+30.28118, -90.40110
30°16'52" N, 90°24'04" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0055 over I-10 & US 51 & SWAMP
Structure number:624804520100002
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:69.9 ft. [21.3 m]
Total length:76717.7 ft. [23382.4 m]
Roadway width between curbs:39.0 ft. [11.9 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1975
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:223
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: June 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:24,000 [as of 2016]
Truck traffic:22% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:94.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017GoodGoodGoodGood2400094.0
June 2015GoodGoodGoodGood1404094.0
June 2013GoodGoodGoodGood1368095.0
July 2011GoodGoodGoodGood1092095.0
August 2009GoodGoodGoodGood1212095.0
February 2008GoodGoodGoodGood1212095.0
August 2005GoodGoodVery GoodGood1158097.0
August 2003FairSatisfactoryGoodSatisfactory1080097.0
August 2001FairSatisfactoryGoodSatisfactory1031195.0
July 1999FairSatisfactoryGoodSatisfactory1031195.0
July 1997FairSatisfactoryGoodSatisfactory877796.0
June 1995FairSatisfactoryVery GoodVery Good878296.0
July 1993FairSatisfactoryVery GoodVery Good824090.7
July 1991FairSatisfactoryVery GoodVery Good710590.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,5152,29522000
Steel Protective Coatingsq. ft.100,60099,1001,50000
Prestressed Concrete Girder/Beamlinear ft.394,852394,75290100
Reinforced Concrete Decksq. ft.3,133,2122,923,171210,04100
Prestressed Concrete Pileeach652652000
Reinforced Concrete Pileeach1,9631,962010
Reinforced Concrete Pier Caplinear ft.44,81044,810000
Compression Jointlinear ft.2,4992,499000
Open Jointlinear ft.760760000
Assembly without Seal Jointlinear ft.240240000
Other Jointlinear ft.10,47310,473000
Elastomeric Bearingeach11,31611,314200
Movable Bearingeach50252500
Steel Protective Coatingsq. ft.1501005000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.154,346154,3192700