S-4-57 over Six & Twenty Mile Ck
FairAnderson County, South Carolina · 8.9MI NE Pendleton · Structure no. 000000000003168
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected January 2024
- Type
- Slab
- Concrete
- Length
- 75 ft
- 5 main spans
- Daily traffic
- 350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-4-57 over Six & Twenty Mile Ck is a concrete slab carrying S-4-57 over Six & Twenty Mile Ck in Anderson County, South Carolina. It was built in 1960, so it is 65 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 350 vehicles a day, roughly 10% of them trucks, projected to reach 641 by 2043. The structure is 75 ft (22.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 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 S-4-57 over Six & Twenty Mile Ck built?
It was built in 1960, making it 65 years old in 2025.
What condition is S-4-57 over Six & Twenty Mile Ck 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 January 2024.
How much traffic does S-4-57 over Six & Twenty Mile Ck carry?
About 350 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is S-4-57 over Six & Twenty Mile Ck?
The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-4-57 over Six & Twenty Mile Ck?
It is owned by the State Highway Agency.