S-18-19/WIRE RD over Polk Swamp
FairDorchester County, South Carolina · 7MI SE ST George · Structure no. 000000000002333
- Built
- 1956
- 69 years old, rebuilt 1994
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 42 ft
- 3 main spans
- Daily traffic
- 1,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-18-19/WIRE RD over Polk Swamp is a concrete slab carrying S-18-19/WIRE RD over Polk Swamp in Dorchester County, South Carolina. It was built in 1956 and reconstructed in 1994, so it is 69 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 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 1,000 vehicles a day, roughly 11% of them trucks, projected to reach 1,460 by 2043. The structure is 42 ft (12.8 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-18-19/WIRE RD over Polk Swamp built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1994.
What condition is S-18-19/WIRE RD over Polk 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 April 2023.
How much traffic does S-18-19/WIRE RD over Polk Swamp carry?
About 1,000 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is S-18-19/WIRE RD over Polk Swamp?
The structure is 42 ft (12.8 m) long with a longest span of 14 ft (4.3 m) and a deck 29 ft wide.
Who owns S-18-19/WIRE RD over Polk Swamp?
It is owned by the State Highway Agency.