+31.32763, -91.82710
31°19'39" N, 91°49'38" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0129 over SIX MILE BAYOU
Structure number:581508150401351
Location:1.35 MI NORTH OF LA 909
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:19.0 ft. [5.8 m]
Total length:95.1 ft. [29.0 m]
Roadway width between curbs:28.2 ft. [8.6 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Owner:State Highway Agency [01]
Year built:1971
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: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: March 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:120 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:60.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017PoorGoodGoodPoor12060.6
March 2014GoodGoodVery GoodVery Good12387.8
March 2012GoodGoodVery GoodVery Good21086.9
June 2010GoodGoodVery GoodVery Good21086.9
June 2008GoodGoodVery GoodVery Good22086.8
February 2006GoodGoodVery GoodVery Good20087.0
December 2003GoodGoodVery GoodVery Good21086.9
August 2001GoodGoodVery GoodVery Good17287.3
September 1999GoodGoodVery GoodVery Good17287.3
August 1997GoodGoodVery GoodVery Good17885.2
August 1995GoodGoodVery GoodVery Good20685.4
August 1993GoodGoodVery GoodVery Good15385.8
August 1991GoodGoodVery GoodVery Good14885.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Decksq. ft.2,9452,945000
Wearing Surfacessq. ft.1,9951,995000
Prestressed Concrete Decksq. ft.2,9452,945000
Wearing Surfacessq. ft.1,9951,995000
Timber Abutmentlinear ft.64032320
Timber Pileeach3229201
Prestressed Concrete Pier Caplinear ft.192186600
Pourable Jointlinear ft.256256000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.310310000
Steel Protective Coatingsq. ft.1,5101,510000