US Bridges

LA0026 over Bayou Blue

Fair

Allen Parish, Louisiana · 3.7 MI S of LA 104 · Structure no. 070200540203711

Built
1957
68 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
1,088
2021 count
Owner
State
State Highway Agency

About this bridge

LA0026 over Bayou Blue is a concrete slab carrying LA0026 over Bayou Blue in Allen Parish, Louisiana. It was built in 1957, so it is 68 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 1,088 vehicles a day, roughly 18% of them trucks, projected to reach 1,196 by 2041. The structure is 200 ft (61 m) long and 29 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesLA0026
CrossesBayou Blue
Location3.7 MI S of LA 104
RouteState Highway 26
CountyAllen Parish
StateLouisiana
Coordinates30.53622, -92.67143
Functional classRural 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
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 protection7 GoodSome minor problems.
Last inspectionFebruary 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadH 15
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,088 (2021)
Projected traffic1,196 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0026 over Bayou Blue built?

It was built in 1957, making it 68 years old in 2025.

What condition is LA0026 over Bayou Blue 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 2023.

How much traffic does LA0026 over Bayou Blue carry?

About 1,088 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is LA0026 over Bayou Blue?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA0026 over Bayou Blue?

It is owned by the State Highway Agency.