S-22-74 over Boser Swamp
FairGeorgetown County, South Carolina · 21 M NE Anderson · Structure no. 000000000002961
- Built
- 1959
- 66 years old, rebuilt 1999
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 475
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-22-74 over Boser Swamp is a concrete slab carrying S-22-74 over Boser Swamp in Georgetown County, South Carolina. It was built in 1959 and reconstructed in 1999, so it is 66 years old, older 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 5 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 475 vehicles a day, roughly 5% of them trucks, projected to reach 608 by 2043. The structure is 45 ft (13.7 m) long and 28 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-22-74 over Boser Swamp built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1999.
What condition is S-22-74 over Boser 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 2023.
How much traffic does S-22-74 over Boser Swamp carry?
About 475 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-22-74 over Boser Swamp?
The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-22-74 over Boser Swamp?
It is owned by the State Highway Agency.