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LA0507 over GRAND BAYOU RELIEF

Map

Coordinates:
+32.00150, -93.20000
32°00'05" N, 93°12'00" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0507 over GRAND BAYOU RELIEF
Structure number:044103040101871
Location:1.84 MI NORTH OF US 71
Purpose:Carries highway over relief for waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:19.0 ft. [5.8 m]
Total length:152.9 ft. [46.6 m]
Roadway width between curbs:28.5 ft. [8.7 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Owner:State Highway Agency [01]
Year built:1976
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:8
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:970 [as of 2015]
Truck traffic:13% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
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:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Scour calculation/evaluation has not been made. [6]
Sufficiency rating:47.2
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$712,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017PoorSatisfactorySatisfactorySerious97047.2
June 2015PoorSatisfactorySatisfactorySerious97047.2
July 2014PoorSatisfactorySatisfactorySerious97047.2
June 2013FairGoodGoodFair129080.7
June 2012FairGoodGoodFair131080.7
June 2011FairGoodGoodFair136080.6
June 2010FairGoodGoodFair189080.2
June 2009FairGoodGoodFair184080.2
July 2007GoodGoodGoodGood330080.3
June 2005GoodGoodGoodGood300079.5
July 2003GoodGoodGoodGood116090.9
August 2001GoodGoodGoodGood113690.9
July 1999GoodGoodGoodGood132390.8
August 1997GoodGoodGoodGood132390.8
August 1995FairSatisfactorySatisfactoryVery Good106090.5
July 1993GoodVery GoodVery GoodVery Good82090.6
September 1991GoodVery GoodVery GoodVery Good90890.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Substructure
Timber Columneach22000
Timber Abutmentlinear ft.10096040
Timber Pileeach4537008
Reinforced Concrete Pier Caplinear ft.288288000
Joints
Pourable Jointlinear ft.301003010
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.304304000
Steel Protective Coatingsq. ft.1,5201,520000
Deck
Reinforced Concrete Slabsq. ft.4,4374,4171640
Wearing Surfacessq. ft.4,0693,0611,00800