US Bridges

LA0457 over Wilson Bayou

Good

Rapides Parish, Louisiana · 4.53 Mi. NE of US 71 · Structure no. 084000730404531

Built
1994
31 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
806
2021 count
Owner
State
State Highway Agency

About this bridge

LA0457 over Wilson Bayou is a concrete slab carrying LA0457 over Wilson Bayou in Rapides Parish, Louisiana. It was built in 1994, so it is 31 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 806 vehicles a day, roughly 14% of them trucks, projected to reach 886 by 2041. The structure is 140 ft (42.7 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0457
CrossesWilson Bayou
Location4.53 Mi. NE of US 71
RouteState Highway 457
Coordinates31.12019, -92.3444
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic806 (2021)
Projected traffic886 by 2041
Trucks14%
Lanes on structure3
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$663,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0457 over Wilson Bayou built?

It was built in 1994, making it 31 years old in 2025.

What condition is LA0457 over Wilson Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does LA0457 over Wilson Bayou carry?

About 806 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0457 over Wilson Bayou?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0457 over Wilson Bayou?

It is owned by the State Highway Agency.