I-85 Sbl over Seneca River
PoorAnderson County, South Carolina · 10.2MI NW of Anderson · Structure no. 000000000004021
- Built
- 1963
- 62 years old, rebuilt 1984
- Condition
- Poor
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 1,060 ft
- 5 main spans
- Daily traffic
- 24,850
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-85 Sbl over Seneca River is a steel continuous stringer/multi-beam or girder carrying I-85 Sbl over Seneca River in Anderson County, South Carolina. It was built in 1963 and reconstructed in 1984, so it is 62 years old, older than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 24,850 vehicles a day, roughly 25% of them trucks. The structure is 1,060 ft (323.1 m) long and 47 ft wide. If it were closed, the detour would be 16.2 mi (26 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Sbl over Seneca River built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1984.
What condition is I-85 Sbl over Seneca River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.
How much traffic does I-85 Sbl over Seneca River carry?
About 24,850 vehicles per day (2023 count), of which roughly 25% are trucks.
How long is I-85 Sbl over Seneca River?
The structure is 1,060 ft (323.1 m) long with a longest span of 140 ft (42.7 m) and a deck 47 ft wide.
Who owns I-85 Sbl over Seneca River?
It is owned by the State Highway Agency.