I-20 Wbl over Big Horse CR & Southern
FairAiken County, South Carolina · 1 MI N of Vaucluse · Structure no. 000000000005444
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 402 ft
- 5 main spans
- Daily traffic
- 18,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-20 Wbl over Big Horse CR & Southern is a steel stringer/multi-beam or girder carrying I-20 Wbl over Big Horse CR & Southern in Aiken County, South Carolina. It was built in 1969, so it is 56 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 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 18,700 vehicles a day, roughly 23% of them trucks, projected to reach 20,009 by 2043. The structure is 402 ft (122.5 m) long and 41 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-20 Wbl over Big Horse CR & Southern built?
It was built in 1969, making it 56 years old in 2025.
What condition is I-20 Wbl over Big Horse CR & Southern 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 February 2024.
How much traffic does I-20 Wbl over Big Horse CR & Southern carry?
About 18,700 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is I-20 Wbl over Big Horse CR & Southern?
The structure is 402 ft (122.5 m) long with a longest span of 88 ft (26.8 m) and a deck 41 ft wide.
Who owns I-20 Wbl over Big Horse CR & Southern?
It is owned by the State Highway Agency.