LA0129 over Six Mile Bayou
FairConcordia Parish, Louisiana · 1.35 MI N of LA 909 · Structure no. 581508150401351
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected March 2023
- Type
- Slab
- Concrete
- Length
- 95 ft
- 5 main spans
- Daily traffic
- 161
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0129 over Six Mile Bayou is a concrete slab carrying LA0129 over Six Mile Bayou in Concordia Parish, Louisiana. It was built in 1971, so it is 54 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 161 vehicles a day, roughly 15% of them trucks, projected to reach 177 by 2041. The structure is 95 ft (29 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0129 over Six Mile Bayou built?
It was built in 1971, making it 54 years old in 2025.
What condition is LA0129 over Six Mile 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 March 2023.
How much traffic does LA0129 over Six Mile Bayou carry?
About 161 vehicles per day (2021 count), of which roughly 15% are trucks.
How long is LA0129 over Six Mile Bayou?
The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.
Who owns LA0129 over Six Mile Bayou?
It is owned by the State Highway Agency.