S-4 WB over Seneca River
GoodOconee County, South Carolina · 1.0 MI W of Clemson · Structure no. 000000000009765
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 700 ft
- 10 main spans
- Daily traffic
- 6,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-4 WB over Seneca River is a prestressed concrete continuous stringer/multi-beam or girder carrying S-4 WB over Seneca River in Oconee County, South Carolina. It was built in 2004, so it is 21 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 6,200 vehicles a day, roughly 4% of them trucks, projected to reach 8,742 by 2043. The structure is 700 ft (213.4 m) long and 40 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-4 WB over Seneca River built?
It was built in 2004, making it 21 years old in 2025.
What condition is S-4 WB over Seneca River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.
How much traffic does S-4 WB over Seneca River carry?
About 6,200 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is S-4 WB over Seneca River?
The structure is 700 ft (213.4 m) long with a longest span of 70 ft (21.3 m) and a deck 40 ft wide.
Who owns S-4 WB over Seneca River?
It is owned by the State Highway Agency.