I0020 over BURNS BAYOU


+32.45636, -91.73310
32°27'23" N, 91°43'59" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0020 over BURNS BAYOU
Structure number:054204510712031
Location:1.5 MI EAST OF LA 137
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:6.9 ft. [2.1 m]
Total length:33.1 ft. [10.1 m]
Roadway width between curbs:84.0 ft. [25.6 m]
Deck width edge-to-edge:194.6 ft. [59.3 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1969
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:3
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:30,900 [as of 2016]
Truck traffic:25% of total traffic
Structural appraisal:Unknown [*]
Deck geometry appraisal:Superior to present desirable criteria [9]
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]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:95.1

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
October 2017Fair6 out of 103090095.1
October 2015Fair6 out of 102780095.4
November 2013Fair6 out of 102730095.4
November 2011Fair6 out of 102140096.0
November 2009Fair6 out of 102550095.6
September 2007Good7 out of 102460092.7
September 2005Good7 out of 102570077.1
March 2003Good7 out of 102350077.3
August 2000Good7 out of 102219777.5
June 1998Good7 out of 102219777.5
July 1996Good7 out of 101819577.9
July 1994Good7 out of 101932378.2
May 1992Good7 out of 101214478.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.1,2641,264000