S-34-680 over Smith Swamp
FairMarion County, South Carolina · 3MI NE Marion · Structure no. 000000000007144
- Built
- 1978
- 47 years old, rebuilt 2005
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-34-680 over Smith Swamp is a concrete slab carrying S-34-680 over Smith Swamp in Marion County, South Carolina. It was built in 1978 and reconstructed in 2005, so it is 47 years old, younger than the South Carolina average of 48 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 128 by 2043. The structure is 30 ft (9.1 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 S-34-680 over Smith Swamp built?
It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2005.
What condition is S-34-680 over Smith Swamp 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 May 2024.
How much traffic does S-34-680 over Smith Swamp carry?
About 100 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-34-680 over Smith Swamp?
The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.
Who owns S-34-680 over Smith Swamp?
It is owned by the State Highway Agency.