S-4-143 over I-85
FairAnderson County, South Carolina · 9.6MI N Williamston · Structure no. 000000000008129
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 376 ft
- 4 main spans
- Daily traffic
- 5,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-4-143 over I-85 is a steel continuous stringer/multi-beam or girder carrying S-4-143 over I-85 in Anderson County, South Carolina. It was built in 1988, so it is 37 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 5,500 vehicles a day, roughly 7% of them trucks, projected to reach 8,415 by 2043. The structure is 376 ft (114.6 m) long and 61 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 | 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-4-143 over I-85 built?
It was built in 1988, making it 37 years old in 2025.
What condition is S-4-143 over I-85 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 2025.
How much traffic does S-4-143 over I-85 carry?
About 5,500 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is S-4-143 over I-85?
The structure is 376 ft (114.6 m) long with a longest span of 136 ft (41.5 m) and a deck 61 ft wide.
Who owns S-4-143 over I-85?
It is owned by the State Highway Agency.