US Bridges

LA0526 over Gilmer Bayou

Fair

Caddo Parish, Louisiana · 2.0 MI W JCT US 171(LA526 · Structure no. 040908090805871

Built
1983
42 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
175 ft
7 main spans
Daily traffic
17,579
2021 count
Owner
State
State Highway Agency

About this bridge

LA0526 over Gilmer Bayou is a concrete slab carrying LA0526 over Gilmer Bayou in Caddo 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 17,579 vehicles a day, roughly 8% of them trucks, projected to reach 19,336 by 2041. The structure is 175 ft (53.3 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLA0526
CrossesGilmer Bayou
Location2.0 MI W JCT US 171(LA526
RouteState Highway 526
CountyCaddo Parish
StateLouisiana
Coordinates32.40209, -93.8416
Functional classUrban Other Principal 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span25 ft (7.6 m)
Deck width90 ft (27.4 m)
Roadway width89 ft (27.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,579 (2021)
Projected traffic19,336 by 2041
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 LA0526 over Gilmer Bayou built?

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

What condition is LA0526 over Gilmer 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 LA0526 over Gilmer Bayou carry?

About 17,579 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA0526 over Gilmer Bayou?

The structure is 175 ft (53.3 m) long with a longest span of 25 ft (7.6 m) and a deck 90 ft wide.

Who owns LA0526 over Gilmer Bayou?

It is owned by the State Highway Agency.