I0012 over I-12 OVER US 61 AIRLINE


+30.42419, -91.07450
30°25'27" N, 91°04'28" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0012 over I-12 OVER US 61 AIRLINE
Structure number:611704540102782
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:54.1 ft. [16.5 m]
Total length:476.1 ft. [145.1 m]
Roadway width between curbs:65.0 ft. [19.8 m]
Deck width edge-to-edge:69.9 ft. [21.3 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1986
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:10
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:73,020 [as of 2015]
Truck traffic:19% of total traffic
Deck condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:83.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2016FairSatisfactorySatisfactoryGood7302083.5
April 2014FairSatisfactorySatisfactoryGood7650083.2
April 2012FairSatisfactoryGoodGood6816084.0
May 2010FairSatisfactoryGoodVery Good7362083.5
April 2008FairSatisfactoryGoodGood7044082.8
April 2006FairSatisfactoryGoodGood6306083.6
April 2004FairSatisfactoryGoodGood6282083.6
April 2002FairSatisfactoryGoodVery Good6078083.8
April 2000FairSatisfactoryGoodVery Good5233084.7
April 1998FairSatisfactoryGoodVery Good5233085.7
April 1996FairSatisfactoryVery GoodVery Good5595785.3
April 1994FairSatisfactoryVery GoodVery Good5427486.6
April 1992FairSatisfactoryVery GoodVery Good4791987.1