LA3064 over LA 3064-ESSEN OVER I-12


+30.41702, -91.09776
30°25'01" N, 91°05'52" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:LA3064 over LA 3064-ESSEN OVER I-12
Structure number:611702583201621
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:69.9 ft. [21.3 m]
Total length:634.9 ft. [193.5 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:60.0 ft. [18.3 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Owner:State Highway Agency [01]
Year built:1967
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:12
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: July 2015 

Status:Open, no restriction [A]
Average daily traffic:38,100 [as of 2015]
Truck traffic:6% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:65.3 tons [59.4 metric tons]
Inventory rating:38.6 tons [35.1 metric tons]
Sufficiency rating:75.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201575.0Not deficientGoodGoodSatisfactory38100
August 201375.0Not deficientGoodGoodSatisfactory38400
September 201176.0Not deficientGoodGoodSatisfactory42100
October 200976.0Not deficientSatisfactoryGoodSatisfactory42100
October 200775.0Not deficientSatisfactoryGoodVery Good40400
October 200575.0Not deficientSatisfactoryGoodVery Good42400
October 200375.0Not deficientSatisfactoryGoodVery Good44700
October 200175.0Not deficientSatisfactoryVery GoodVery Good44333
October 199977.0Not deficientSatisfactoryVery GoodVery Good42234
October 199778.0Not deficientSatisfactoryVery GoodVery Good42234
October 199578.0Not deficientSatisfactoryVery GoodVery Good43406
October 199378.9Not deficientSatisfactoryVery GoodVery Good34411
October 199178.5Not deficientSatisfactoryVery GoodVery Good35477