Structure 56208622000231 · West Carroll County, LA

La0587 over Bayou

Carries La0587 over Bayou, 3.7 Mi West Of La 878.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT80 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

80 ft end to end, longest span 20 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built198541 years old
Length80.1 ft24.4 m
Daily traffic565counted 2021
Last inspectedFebruary 2023every 24 months

Location

StateLouisiana
CountyWest Carroll
Location3.7 Mi West Of La 878
CarriesLa0587
CrossesBayou
Coordinates32.85773, -91.41780

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length80.1 ft (24.4 m)
Max Span20.0 ft (6.1 m)
Deck Width43.0 ft (13.1 m)
Deck Area319.6 sq m
Main Spans4
Year Built1985

Traffic

Avg Daily Traffic565 (2021)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number056208622000231

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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