US Bridges

LA0015 over Bayou

Fair

Ouachita Parish, Louisiana · 1.5 MI West of LA 841 · Structure no. 053700261006961

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
5,994
2021 count
Owner
State
State Highway Agency

About this bridge

LA0015 over Bayou is a concrete slab carrying LA0015 over Bayou in Ouachita Parish, Louisiana. It was built in 1951, so it is 74 years old, older 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 5,994 vehicles a day, roughly 8% of them trucks, projected to reach 6,593 by 2041. The structure is 100 ft (30.5 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesLA0015
CrossesBayou
Location1.5 MI West of LA 841
RouteState Highway 15
Coordinates32.4702, -92.0686
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,994 (2021)
Projected traffic6,593 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$498,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0015 over Bayou built?

It was built in 1951, making it 74 years old in 2025.

What condition is LA0015 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 August 2024.

How much traffic does LA0015 over Bayou carry?

About 5,994 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA0015 over Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns LA0015 over Bayou?

It is owned by the State Highway Agency.