US 178 over Six & Twenty Creek
FairAnderson County, South Carolina · 5.1MI NW of Anderson · Structure no. 000000000003792
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 256 ft
- 4 main spans
- Daily traffic
- 22,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 178 over Six & Twenty Creek is a prestressed concrete stringer/multi-beam or girder carrying US 178 over Six & Twenty Creek in Anderson County, South Carolina. It was built in 1962, so it is 63 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 22,300 vehicles a day, roughly 10% of them trucks, projected to reach 27,652 by 2043. The structure is 256 ft (78 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| 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 US 178 over Six & Twenty Creek built?
It was built in 1962, making it 63 years old in 2025.
What condition is US 178 over Six & Twenty Creek 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 December 2023.
How much traffic does US 178 over Six & Twenty Creek carry?
About 22,300 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is US 178 over Six & Twenty Creek?
The structure is 256 ft (78 m) long with a longest span of 64 ft (19.5 m) and a deck 31 ft wide.
Who owns US 178 over Six & Twenty Creek?
It is owned by the State Highway Agency.