US Bridges

LA0431 over Lake Villar

Fair

Ascension Parish, Louisiana · 0.92 MI S of LA 42 · Structure no. 610302670208881

Built
1983
42 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
229 ft
12 main spans
Daily traffic
9,608
2021 count
Owner
State
State Highway Agency

About this bridge

LA0431 over Lake Villar is a concrete slab carrying LA0431 over Lake Villar in Ascension Parish, Louisiana. It was built in 1983, so it is 42 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 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 9,608 vehicles a day, roughly 7% of them trucks, projected to reach 10,568 by 2041. The structure is 229 ft (69.8 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA0431
CrossesLake Villar
Location0.92 MI S of LA 42
RouteState Highway 431
CountyAscension Parish
StateLouisiana
Coordinates30.31967, -90.85369
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans12
Design loadHS 20
Structure length229 ft (69.8 m)
Longest span19 ft (5.8 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,608 (2021)
Projected traffic10,568 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 LA0431 over Lake Villar built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA0431 over Lake Villar 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 July 2024.

How much traffic does LA0431 over Lake Villar carry?

About 9,608 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is LA0431 over Lake Villar?

The structure is 229 ft (69.8 m) long with a longest span of 19 ft (5.8 m) and a deck 43 ft wide.

Who owns LA0431 over Lake Villar?

It is owned by the State Highway Agency.