I-85 SB over Three & Twenty Creek
FairAnderson County, South Carolina · 8.9MI NW of Anderson · Structure no. 000000000003787
- Built
- 1962
- 63 years old, rebuilt 1975
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 700 ft
- 9 main spans
- Daily traffic
- 25,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-85 SB over Three & Twenty Creek is a steel stringer/multi-beam or girder carrying I-85 SB over Three & Twenty Creek in Anderson County, South Carolina. It was built in 1962 and reconstructed in 1975, 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 25,150 vehicles a day, roughly 22% of them trucks. The structure is 700 ft (213.4 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 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 I-85 SB over Three & Twenty Creek built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1975.
What condition is I-85 SB over Three & 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 2024.
How much traffic does I-85 SB over Three & Twenty Creek carry?
About 25,150 vehicles per day (2023 count), of which roughly 22% are trucks.
How long is I-85 SB over Three & Twenty Creek?
The structure is 700 ft (213.4 m) long with a longest span of 85 ft (25.9 m) and a deck 43 ft wide.
Who owns I-85 SB over Three & Twenty Creek?
It is owned by the State Highway Agency.