US 278 EB over Okatie River
FairBeaufort County, South Carolina · 18MI SW of Beaufort · Structure no. 000000000008414
- Built
- 1991
- 34 years old, rebuilt 2016
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 810 ft
- 27 main spans
- Daily traffic
- 33,950
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 278 EB over Okatie River is a concrete continuous slab carrying US 278 EB over Okatie River in Beaufort County, South Carolina. It was built in 1991 and reconstructed in 2016, so it is 34 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 33,950 vehicles a day, roughly 5% of them trucks, projected to reach 40,740 by 2043. The structure is 810 ft (246.9 m) long and 59 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 278 EB over Okatie River built?
It was built in 1991, making it 34 years old in 2025. It was reconstructed in 2016.
What condition is US 278 EB over Okatie River 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 2024.
How much traffic does US 278 EB over Okatie River carry?
About 33,950 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 278 EB over Okatie River?
The structure is 810 ft (246.9 m) long with a longest span of 30 ft (9.1 m) and a deck 59 ft wide.
Who owns US 278 EB over Okatie River?
It is owned by the State Highway Agency.