Sc 340 over Lake Swamp
GoodDarlington County, South Carolina · 6.0 MI E of Lamar · Structure no. 000000000001361
- Built
- 1947
- 78 years old
- Condition
- Good
- inspected January 2024
- Type
- Tee Beam
- Concrete
- Length
- 120 ft
- 4 main spans
- Daily traffic
- 2,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Sc 340 over Lake Swamp is a concrete tee beam carrying Sc 340 over Lake Swamp in Darlington County, South Carolina. It was built in 1947, so it is 78 years old, older than the South Carolina average of 48 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 2,100 vehicles a day, roughly 6% of them trucks. The structure is 120 ft (36.6 m) long and 33 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 Sc 340 over Lake Swamp built?
It was built in 1947, making it 78 years old in 2025.
What condition is Sc 340 over Lake Swamp 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 January 2024.
How much traffic does Sc 340 over Lake Swamp carry?
About 2,100 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Sc 340 over Lake Swamp?
The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.
Who owns Sc 340 over Lake Swamp?
It is owned by the State Highway Agency.