US 278 WB over Sc 170
GoodBeaufort County, South Carolina · 18.5 MI SW of Beaufort · Structure no. 000000000008417
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 250 ft
- 1 main span
- Daily traffic
- 33,950
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 278 WB over Sc 170 is a steel stringer/multi-beam or girder carrying US 278 WB over Sc 170 in Beaufort County, South Carolina. It was built in 1991, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 33,950 vehicles a day, roughly 5% of them trucks, projected to reach 40,740 by 2043. The structure is 250 ft (76.2 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 278 WB over Sc 170 built?
It was built in 1991, making it 34 years old in 2025.
What condition is US 278 WB over Sc 170 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 August 2024.
How much traffic does US 278 WB over Sc 170 carry?
About 33,950 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 278 WB over Sc 170?
The structure is 250 ft (76.2 m) long with a longest span of 158 ft (48.2 m) and a deck 47 ft wide.
Who owns US 278 WB over Sc 170?
It is owned by the State Highway Agency.