US Bridges

LA1175 over Bayou Boeuf

Fair

Avoyelles Parish, Louisiana · 0.79 Mile East of LA 29 · Structure no. 080508053300791

Built
1967
58 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
115 ft
6 main spans
Daily traffic
79
2021 count
Owner
State
State Highway Agency

About this bridge

LA1175 over Bayou Boeuf is a concrete slab carrying LA1175 over Bayou Boeuf in Avoyelles Parish, Louisiana. It was built in 1967, so it is 58 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 5 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 79 vehicles a day, roughly 10% of them trucks, projected to reach 86 by 2041. The structure is 115 ft (35.1 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA1175
CrossesBayou Boeuf
Location0.79 Mile East of LA 29
RouteState Highway 1175
Coordinates30.85755, -92.2016
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating51 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (2021)
Projected traffic86 by 2041
Trucks10%
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 LA1175 over Bayou Boeuf built?

It was built in 1967, making it 58 years old in 2025.

What condition is LA1175 over Bayou Boeuf 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 2024.

How much traffic does LA1175 over Bayou Boeuf carry?

About 79 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1175 over Bayou Boeuf?

The structure is 115 ft (35.1 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA1175 over Bayou Boeuf?

It is owned by the State Highway Agency.