+31.17865, -93.28363
31°10'43" N, 93°17'01" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US0171 over PRAIRIE CREEK
Structure number:085800250102831
Location:1.59 M. N. OF N. JCT. LA
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:20.0 ft. [6.1 m]
Total length:361.9 ft. [110.3 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Owner:State Highway Agency [01]
Year built:1986
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:18
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:8,460 [as of 2015]
Truck traffic:28% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:74.8 tons [68.0 metric tons]
Inventory rating:44.9 tons [40.8 metric tons]
Sufficiency rating:98.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201698.0GoodGoodGoodGood-8460
February 201498.0GoodGoodGoodGood-8220
February 201298.0GoodGoodGoodGood-6360
February 201098.0GoodGoodVery GoodGood-5940
February 200898.0GoodGoodVery GoodGood-5940
March 200698.0FairSatisfactoryVery GoodSatisfactory-6480
March 200498.0FairSatisfactoryVery GoodSatisfactory-6420
February 200298.0FairSatisfactoryVery GoodSatisfactory-6784
January 200098.0FairSatisfactoryVery GoodSatisfactory-5458
July 199898.0FairSatisfactoryVery GoodVery Good-5458
June 199698.0GoodVery GoodVery GoodVery Good-5458
June 199498.0GoodVery GoodVery GoodVery Good-5458
June 199298.0GoodVery GoodVery GoodVery Good-5458

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Abutmentlinear ft.106106000
Prestressed Concrete Pileeach8585000
Reinforced Concrete Pier Caplinear ft.821821000
Pourable Jointlinear ft.813081300
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.800800000
Reinforced Concrete Slabsq. ft.15,49415,494000