LA0004 over Black Lake Bayou Relief
FairBienville Parish, Louisiana · 6.7 MI East of LA 154 · Structure no. 040700670207201
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete
- Length
- 160 ft
- 8 main spans
- Daily traffic
- 1,087
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0004 over Black Lake Bayou Relief is a concrete slab carrying LA0004 over Black Lake Bayou Relief in Bienville Parish, Louisiana. It was built in 1982, so it is 43 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 6 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 1,087 vehicles a day, roughly 19% of them trucks, projected to reach 1,195 by 2041. The structure is 160 ft (48.8 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0004 over Black Lake Bayou Relief built?
It was built in 1982, making it 43 years old in 2025.
What condition is LA0004 over Black Lake Bayou Relief 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 May 2023.
How much traffic does LA0004 over Black Lake Bayou Relief carry?
About 1,087 vehicles per day (2021 count), of which roughly 19% are trucks.
How long is LA0004 over Black Lake Bayou Relief?
The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.
Who owns LA0004 over Black Lake Bayou Relief?
It is owned by the State Highway Agency.