LA0686 over South Relief Canl
GoodSt. Martin Parish, Louisiana · 1.5 MI South of LA 347 · Structure no. 035008500201571
- Built
- 1959
- 66 years old
- Condition
- Good
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 60 ft
- 3 main spans
- Daily traffic
- 3,212
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0686 over South Relief Canl is a concrete slab carrying LA0686 over South Relief Canl in St. Martin Parish, Louisiana. It was built in 1959, so it is 66 years old, older 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 3,212 vehicles a day, roughly 12% of them trucks, projected to reach 3,533 by 2041. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 LA0686 over South Relief Canl built?
It was built in 1959, making it 66 years old in 2025.
What condition is LA0686 over South Relief Canl 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 May 2024.
How much traffic does LA0686 over South Relief Canl carry?
About 3,212 vehicles per day (2021 count), of which roughly 12% are trucks.
How long is LA0686 over South Relief Canl?
The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.
Who owns LA0686 over South Relief Canl?
It is owned by the State Highway Agency.