Swan Lake RD over Flat River Bayou
GoodBossier Parish, Louisiana · 5.5 Mi. N. of US 80 · Structure no. 040832365934031
- Built
- 2006
- 19 years old, rebuilt 2019
- Condition
- Good
- inspected December 2024
- Type
- Slab
- Concrete
- Length
- 120 ft
- 6 main spans
- Daily traffic
- 2,800
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Swan Lake RD over Flat River Bayou is a concrete slab carrying Swan Lake RD over Flat River Bayou in Bossier Parish, Louisiana. It was built in 2006 and reconstructed in 2019, so it is 19 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 2,800 vehicles a day, projected to reach 3,080 by 2040. The structure is 120 ft (36.6 m) long and 52 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 Swan Lake RD over Flat River Bayou built?
It was built in 2006, making it 19 years old in 2025. It was reconstructed in 2019.
What condition is Swan Lake RD over Flat River 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 December 2024.
How much traffic does Swan Lake RD over Flat River Bayou carry?
About 2,800 vehicles per day (2020 count).
How long is Swan Lake RD over Flat River Bayou?
The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 52 ft wide.
Who owns Swan Lake RD over Flat River Bayou?
It is owned by the County Highway Agency.