Sc 170 over Chechessee River
FairBeaufort County, South Carolina · 10MI SW of Beaufort · Structure no. 000000000002298
- Built
- 2003
- 22 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,853 ft
- 13 main spans
- Daily traffic
- 30,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Sc 170 over Chechessee River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sc 170 over Chechessee River in Beaufort County, South Carolina. It was built in 2003, so it is 22 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 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 30,600 vehicles a day, roughly 6% of them trucks, projected to reach 75,582 by 2043. The structure is 1,853 ft (564.8 m) long and 81 ft wide. If it were closed, the detour would be 42.9 mi (69 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Sc 170 over Chechessee River built?
It was built in 2003, making it 22 years old in 2025.
What condition is Sc 170 over Chechessee 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 March 2024.
How much traffic does Sc 170 over Chechessee River carry?
About 30,600 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Sc 170 over Chechessee River?
The structure is 1,853 ft (564.8 m) long with a longest span of 147 ft (44.8 m) and a deck 81 ft wide.
Who owns Sc 170 over Chechessee River?
It is owned by the State Highway Agency.