S-34-31 over Oak Swamp
GoodMarion County, South Carolina · 3MI S Mullins · Structure no. 000000000008897
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 74 ft
- 3 main spans
- Daily traffic
- 1,050
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-34-31 over Oak Swamp is a concrete continuous slab carrying S-34-31 over Oak Swamp in Marion County, South Carolina. It was built in 1995, so it is 30 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,050 vehicles a day, roughly 18% of them trucks, projected to reach 1,533 by 2043. The structure is 74 ft (22.6 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-34-31 over Oak Swamp built?
It was built in 1995, making it 30 years old in 2025.
What condition is S-34-31 over Oak 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 May 2023.
How much traffic does S-34-31 over Oak Swamp carry?
About 1,050 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is S-34-31 over Oak Swamp?
The structure is 74 ft (22.6 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.
Who owns S-34-31 over Oak Swamp?
It is owned by the State Highway Agency.