Swan Lake Rd.(s) over Flat River
GoodBossier Parish, Louisiana · 2.2 MI E of US 71 · Structure no. 040800000040804
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 172 ft
- 5 main spans
- Daily traffic
- 10
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Swan Lake Rd.(s) over Flat River is a prestressed concrete stringer/multi-beam or girder carrying Swan Lake Rd.(s) over Flat River in Bossier Parish, Louisiana. It was built in 2020, so it is 5 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 10 vehicles a day, projected to reach 11 by 2039. The structure is 172 ft (52.4 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 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.(s) over Flat River built?
It was built in 2020, making it 5 years old in 2025.
What condition is Swan Lake Rd.(s) over Flat River 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.(s) over Flat River carry?
About 10 vehicles per day (2019 count).
How long is Swan Lake Rd.(s) over Flat River?
The structure is 172 ft (52.4 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.
Who owns Swan Lake Rd.(s) over Flat River?
It is owned by the County Highway Agency.