LA0518 over Bayou Darbonne
PoorClaiborne Parish, Louisiana · 2.60 MI North of LA 146 · Structure no. 041401090302601
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected August 2023
- Type
- Slab
- Concrete
- Length
- 134 ft
- 7 main spans
- Daily traffic
- 389
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0518 over Bayou Darbonne is a concrete slab carrying LA0518 over Bayou Darbonne in Claiborne Parish, Louisiana. It was built in 1979, so it is 46 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 389 vehicles a day, roughly 25% of them trucks, projected to reach 427 by 2041. The structure is 134 ft (40.8 m) long and 31 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 LA0518 over Bayou Darbonne built?
It was built in 1979, making it 46 years old in 2025.
What condition is LA0518 over Bayou Darbonne 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 August 2023.
How much traffic does LA0518 over Bayou Darbonne carry?
About 389 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is LA0518 over Bayou Darbonne?
The structure is 134 ft (40.8 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.
Who owns LA0518 over Bayou Darbonne?
It is owned by the State Highway Agency.