US Bridges

LA0587 over Bayou

Fair

West Carroll Parish, Louisiana · 3.7 MI West of LA 878 · Structure no. 056208622000231

Built
1985
40 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
565
2021 count
Owner
State
State Highway Agency

About this bridge

LA0587 over Bayou is a concrete slab carrying LA0587 over Bayou in West Carroll Parish, Louisiana. It was built in 1985, so it is 40 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 565 vehicles a day, roughly 19% of them trucks, projected to reach 621 by 2041. The structure is 80 ft (24.4 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0587
CrossesBayou
Location3.7 MI West of LA 878
RouteState Highway 587
Coordinates32.85773, -91.4178
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic565 (2021)
Projected traffic621 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0587 over Bayou built?

It was built in 1985, making it 40 years old in 2025.

What condition is LA0587 over Bayou in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does LA0587 over Bayou carry?

About 565 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0587 over Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns LA0587 over Bayou?

It is owned by the State Highway Agency.