LA1046 over Natalbany River
FairSt. Helena Parish, Louisiana · LA1046 · Structure no. 624608460800321
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected November 2024
- Type
- Slab
- Concrete
- Length
- 100 ft
- 5 main spans
- Daily traffic
- 572
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA1046 over Natalbany River is a concrete slab carrying LA1046 over Natalbany River in St. Helena Parish, Louisiana. It was built in 1956, so it is 69 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 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 572 vehicles a day, roughly 13% of them trucks, projected to reach 629 by 2041. The structure is 100 ft (30.5 m) long and 29 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA1046 over Natalbany River built?
It was built in 1956, making it 69 years old in 2025.
What condition is LA1046 over Natalbany River 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 November 2024.
How much traffic does LA1046 over Natalbany River carry?
About 572 vehicles per day (2021 count), of which roughly 13% are trucks.
How long is LA1046 over Natalbany River?
The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.
Who owns LA1046 over Natalbany River?
It is owned by the State Highway Agency.