US Bridges

LA0525 over Buchanan Bayou

Fair

Caddo Parish, Louisiana · 1.8 MI East of LA 169 · Structure no. 040900970111721

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
4,294
2021 count
Owner
State
State Highway Agency

About this bridge

LA0525 over Buchanan Bayou is a concrete slab carrying LA0525 over Buchanan Bayou in Caddo Parish, Louisiana. It was built in 1969, so it is 56 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 4,294 vehicles a day, roughly 19% of them trucks, projected to reach 4,723 by 2041. The structure is 57 ft (17.4 m) long and 27 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesLA0525
CrossesBuchanan Bayou
Location1.8 MI East of LA 169
RouteState Highway 525
CountyCaddo Parish
StateLouisiana
Coordinates32.32446, -93.9204
Functional classRural Major 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
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
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,294 (2021)
Projected traffic4,723 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$312,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0525 over Buchanan Bayou built?

It was built in 1969, making it 56 years old in 2025.

What condition is LA0525 over Buchanan 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 February 2024.

How much traffic does LA0525 over Buchanan Bayou carry?

About 4,294 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0525 over Buchanan Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0525 over Buchanan Bayou?

It is owned by the State Highway Agency.