I-26 EB over Four Hole Swamp
FairBerkeley County, South Carolina · 14.3 MI SE ST George · Structure no. 000000000003632
- Built
- 1961
- 64 years old, rebuilt 1982
- Condition
- Fair
- inspected September 2023
- Type
- Tee Beam
- Concrete
- Length
- 750 ft
- 25 main spans
- Daily traffic
- 23,550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-26 EB over Four Hole Swamp is a concrete tee beam carrying I-26 EB over Four Hole Swamp in Berkeley County, South Carolina. It was built in 1961 and reconstructed in 1982, so it is 64 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 23,550 vehicles a day, roughly 18% of them trucks, projected to reach 36,267 by 2043. The structure is 750 ft (228.6 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 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 I-26 EB over Four Hole Swamp built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1982.
What condition is I-26 EB over Four Hole 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 September 2023.
How much traffic does I-26 EB over Four Hole Swamp carry?
About 23,550 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is I-26 EB over Four Hole Swamp?
The structure is 750 ft (228.6 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.
Who owns I-26 EB over Four Hole Swamp?
It is owned by the State Highway Agency.