+30.49860, -91.08840
30°29'55" N, 91°05'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0946 over ROBERTS CANAL
Structure number:611708170801041
Location:5.46M NORTH OF LA 37
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:20.0 ft. [6.1 m]
Total length:160.1 ft. [48.8 m]
Roadway width between curbs:82.0 ft. [25.0 m]
Deck width edge-to-edge:84.6 ft. [25.8 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1992
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 Cast-in-Place [1]

Latest Available Inspection: April 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:25,900 [as of 2015]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:78.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2017FairGoodGoodSatisfactory2590078.0
April 2015FairGoodGoodSatisfactory2590078.0
May 2013FairGoodGoodSatisfactory1270078.0
June 2011FairGoodGoodSatisfactory1340079.0
June 2009GoodVery GoodGoodGood1450080.0
July 2007GoodGoodVery GoodVery Good1570080.0
July 2005GoodVery GoodVery GoodVery Good1490080.0
July 2003GoodVery GoodVery GoodVery Good1490080.0
July 2001GoodVery GoodVery GoodVery Good1357680.0
July 1999GoodVery GoodVery GoodVery Good1002080.0
July 1997GoodVery GoodVery GoodVery Good1002080.0
July 1995GoodVery GoodVery GoodVery Good1013780.0
July 1993GoodVery GoodVery GoodVery Good949080.0
August 1992FairSatisfactoryVery GoodVery Good911163.6
August 1990FairSatisfactoryVery GoodVery Good911163.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Abutmentlinear ft.208205030
Reinforced Concrete Pileeach7777000
Reinforced Concrete Pier Caplinear ft.7076970100
Pourable Jointlinear ft.873087300
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.320320000
Reinforced Concrete Slabsq. ft.13,280013,28000