US Bridges

LA0452 over Johnson Bayou

Fair

Avoyelles Parish, Louisiana · 1.96 Mi. North of LA 1190 · Structure no. 080501430103511

Built
1953
72 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
61 ft
3 main spans
Daily traffic
8,736
2021 count
Owner
State
State Highway Agency

About this bridge

LA0452 over Johnson Bayou is a concrete tee beam carrying LA0452 over Johnson Bayou in Avoyelles Parish, Louisiana. It was built in 1953, so it is 72 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 8,736 vehicles a day, roughly 14% of them trucks, projected to reach 9,609 by 2041. The structure is 61 ft (18.6 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0452
CrossesJohnson Bayou
Location1.96 Mi. North of LA 1190
RouteState Highway 452
CountyAvoyelles Parish
StateLouisiana
Coordinates31.16389, -92.0509
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
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating27.1 US tons
Inventory rating18.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length61 ft (18.6 m)
Longest span20 ft (6.1 m)
Deck width25 ft (7.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,736 (2021)
Projected traffic9,609 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$331,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0452 over Johnson Bayou built?

It was built in 1953, making it 72 years old in 2025.

What condition is LA0452 over Johnson 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 January 2024.

How much traffic does LA0452 over Johnson Bayou carry?

About 8,736 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0452 over Johnson Bayou?

The structure is 61 ft (18.6 m) long with a longest span of 20 ft (6.1 m) and a deck 25 ft wide.

Who owns LA0452 over Johnson Bayou?

It is owned by the State Highway Agency.