LA0478 over Slate Branch
GoodNatchitoches Parish, Louisiana · 2.74 Miles East of LA 120 · Structure no. 083500000080623
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected March 2024
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 3 main spans
- Daily traffic
- 172
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0478 over Slate Branch is a concrete culvert carrying LA0478 over Slate Branch in Natchitoches Parish, Louisiana. It was built in 2013, so it is 12 years old, younger than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 172 vehicles a day, roughly 14% of them trucks, projected to reach 189 by 2041. The structure is 26 ft (7.9 m) long and 63 ft wide. If it were closed, the detour would be 8.7 mi (14 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0478 over Slate Branch built?
It was built in 2013, making it 12 years old in 2025.
What condition is LA0478 over Slate Branch in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does LA0478 over Slate Branch carry?
About 172 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is LA0478 over Slate Branch?
The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 63 ft wide.
Who owns LA0478 over Slate Branch?
It is owned by the State Highway Agency.