+30.73868, -90.83790
30°44'19" N, 90°50'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0037 over AMITE R RELIEF
Structure number:624602540500311
Purpose:Carries highway over relief for waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:20.0 ft. [6.1 m]
Total length:100.1 ft. [30.5 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:29.5 ft. [9.0 m]
Owner:State Highway Agency [01]
Year built:1955
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:5
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:2,700 [as of 2015]
Truck traffic:14% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:37.0 tons [33.6 metric tons]
Inventory rating:22.0 tons [20.0 metric tons]
Sufficiency rating:62.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$498,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201662.8GoodGoodGoodGoodFO2700
October 201462.5GoodGoodGoodGoodFO2900
October 201263.5GoodGoodGoodGoodFO2800
September 201063.5GoodGoodGoodGoodFO2600
September 200863.5GoodGoodGoodGoodFO2600
November 200665.5GoodGoodGoodGoodFO2600
October 200467.5GoodGoodGoodGood-1960
December 200262.2GoodGoodGoodGoodFO2500
October 200062.2GoodGoodGoodGoodFO2649
October 199877.9GoodGoodGoodGoodFO2045
August 199677.9GoodGoodGoodGoodFO3602
September 199477.9FairSatisfactorySatisfactorySatisfactoryFO3415
October 199277.9GoodGoodGoodGoodFO3189
December 199077.9GoodGoodGoodVery GoodFO3189

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Abutmentlinear ft.5858000
Prestressed Concrete Pileeach1616000
Reinforced Concrete Pier Caplinear ft.108108000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.200002000
Reinforced Concrete Slabsq. ft.2,9002,900000