+31.75362, -91.41740
31°45'13" N, 91°25'03" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0569 over BAYOU L-ARGENT
Structure number:585401760300001
Location:1.21 MI SOUTH OF LA 568
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:19.0 ft. [5.8 m]
Total length:96.1 ft. [29.3 m]
Roadway width between curbs:25.3 ft. [7.7 m]
Deck width edge-to-edge:27.9 ft. [8.5 m]
Owner:State Highway Agency [01]
Year built:1954
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:3
Main spans material:Wood or timber [7]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:240 [as of 2016]
Truck traffic:15% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:63.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairFairFairFair24063.3
July 2016FairFairFairFair24063.3
July 2014FairGoodFairFair25069.2
August 2013FairGoodFairFair32064.6
September 2012FairGoodFairFair32064.6
August 2011FairGoodFairFair30064.6
August 2010FairGoodFairFair28064.6
August 2009FairGoodFairFair28064.6
May 2007FairGoodSatisfactoryGood36070.6
March 2004GoodGoodGoodGood26070.7
April 2002FairSatisfactoryGoodGood26070.7
May 2000FairSatisfactoryGoodGood24175.2
April 1999FairSatisfactoryGoodGood276158.1
April 1997FairSatisfactoryGoodGood35470.2
April 1995GoodGoodGoodGood35069.0
March 1993GoodGoodGoodGood18969.1
March 1991GoodGoodGoodGood18969.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Timber Girder/Beamlinear ft.1,6151,495100200
Timber Abutmentlinear ft.5555000
Timber Pileeach4739008
Timber Pier Caplinear ft.2001750025
Timber Decksq. ft.2,3282,328000
Wearing Surfacessq. ft.2,3282,328000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.190190000
Steel Protective Coatingsq. ft.950950000