LA0509 over Watson Bayou
PoorRed River Parish, Louisiana · 1.64 MI West of LA 1 · Structure no. 044101050300371
- Built
- 1978
- 47 years old
- Condition
- Poor
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 76 ft
- 4 main spans
- Daily traffic
- 1,975
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0509 over Watson Bayou is a concrete slab carrying LA0509 over Watson Bayou in Red River Parish, Louisiana. It was built in 1978, so it is 47 years old, older than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 1,975 vehicles a day, roughly 19% of them trucks, projected to reach 2,172 by 2041. The structure is 76 ft (23.2 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 LA0509 over Watson Bayou built?
It was built in 1978, making it 47 years old in 2025.
What condition is LA0509 over Watson Bayou in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does LA0509 over Watson Bayou carry?
About 1,975 vehicles per day (2021 count), of which roughly 19% are trucks.
How long is LA0509 over Watson Bayou?
The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.
Who owns LA0509 over Watson Bayou?
It is owned by the State Highway Agency.