LA0173 over Twelve Mile Bayou
FairCaddo Parish, Louisiana · 1.53 MI East of LA 1 · Structure no. 040900940201531
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 590 ft
- 8 main spans
- Daily traffic
- 713
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0173 over Twelve Mile Bayou is a prestressed concrete stringer/multi-beam or girder carrying LA0173 over Twelve Mile Bayou in Caddo Parish, Louisiana. It was built in 1980, so it is 45 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 713 vehicles a day, roughly 19% of them trucks, projected to reach 784 by 2041. The structure is 590 ft (179.8 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0173 over Twelve Mile Bayou built?
It was built in 1980, making it 45 years old in 2025.
What condition is LA0173 over Twelve Mile Bayou 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 June 2023.
How much traffic does LA0173 over Twelve Mile Bayou carry?
About 713 vehicles per day (2021 count), of which roughly 19% are trucks.
How long is LA0173 over Twelve Mile Bayou?
The structure is 590 ft (179.8 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.
Who owns LA0173 over Twelve Mile Bayou?
It is owned by the State Highway Agency.