LA0174 over San Miguel Bayou
GoodSabine Parish, Louisiana · .25 MI East of LA 175 · Structure no. 084301120400251
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete
- Length
- 180 ft
- 9 main spans
- Daily traffic
- 665
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0174 over San Miguel Bayou is a concrete slab carrying LA0174 over San Miguel Bayou in Sabine Parish, Louisiana. It was built in 1983, so it is 42 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 665 vehicles a day, roughly 14% of them trucks, projected to reach 731 by 2041. The structure is 180 ft (54.9 m) long and 33 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0174 over San Miguel Bayou built?
It was built in 1983, making it 42 years old in 2025.
What condition is LA0174 over San Miguel Bayou 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 August 2024.
How much traffic does LA0174 over San Miguel Bayou carry?
About 665 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is LA0174 over San Miguel Bayou?
The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.
Who owns LA0174 over San Miguel Bayou?
It is owned by the State Highway Agency.