US0171 over FLAT CREEK


+30.90505, -93.28773
30°54'18" N, 93°17'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US0171 over FLAT CREEK
Structure number:085800240601501
Location:.1 MI SOUTH OF LA 3226
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:20.0 ft. [6.1 m]
Total length:200.1 ft. [61.0 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:1981
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:10
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:11,820 [as of 2015]
Truck traffic:14% 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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Better than present minimum criteria [7]
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]
Operating rating:74.2 tons [67.5 metric tons]
Inventory rating:44.6 tons [40.5 metric tons]
Sufficiency rating:96.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201696.9GoodGoodGoodGood-11820
February 201496.9GoodGoodGoodGood-11580
January 201297.0GoodGoodGoodGood-10980
February 201097.1GoodGoodGoodGood-9840
February 200892.2GoodGoodGoodGood-9540
March 200691.9FairSatisfactorySatisfactorySatisfactory-10080
February 200492.5FairSatisfactorySatisfactorySatisfactory-9000
February 200291.4FairSatisfactorySatisfactorySatisfactory-10812
January 200087.7FairSatisfactorySatisfactorySatisfactory-16918
January 199893.5FairSatisfactorySatisfactorySatisfactory-7386
January 199692.5FairSatisfactorySatisfactorySatisfactory-9211
February 199493.4FairSatisfactorySatisfactorySatisfactory-7693
February 199293.1FairSatisfactoryVery GoodVery Good-8194

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Abutmentlinear ft.9693300
Prestressed Concrete Pileeach3636000
Reinforced Concrete Pier Caplinear ft.391039100
Pourable Jointlinear ft.469046900
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.400040000
Reinforced Concrete Slabsq. ft.8,5208,520000