US Bridges

LA0525 over Boggy Bayou

FairPosted for load

Caddo Parish, Louisiana · 7.0 MI East of LA 169 · Structure no. 040900970116911

Built
1969
56 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
190 ft
10 main spans
Daily traffic
4,294
2021 count
Owner
State
State Highway Agency

About this bridge

LA0525 over Boggy Bayou is a concrete slab carrying LA0525 over Boggy 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. Its operating status is: posted for load restriction.

It carries about 4,294 vehicles a day, roughly 10% of them trucks, projected to reach 4,723 by 2041. The structure is 190 ft (57.9 m) long and 27 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesLA0525
CrossesBoggy Bayou
Location7.0 MI East of LA 169
RouteState Highway 525
CountyCaddo Parish
StateLouisiana
Coordinates32.37119, -93.8519
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans10
Design loadH 15
Structure length190 ft (57.9 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,294 (2021)
Projected traffic4,723 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$858,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0525 over Boggy Bayou built?

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

What condition is LA0525 over Boggy 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 November 2023.

How much traffic does LA0525 over Boggy Bayou carry?

About 4,294 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0525 over Boggy Bayou?

The structure is 190 ft (57.9 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0525 over Boggy Bayou?

It is owned by the State Highway Agency.