US 301 SB over Four Hole Swamp
GoodOrangeburg County, South Carolina · 8 MI W of Santee · Structure no. 000000000010804
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected January 2024
- Type
- Slab
- Concrete Continuous
- Length
- 300 ft
- 8 main spans
- Daily traffic
- 4,900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 301 SB over Four Hole Swamp is a concrete continuous slab carrying US 301 SB over Four Hole Swamp in Orangeburg County, South Carolina. It was built in 2023, so it is 2 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 4,900 vehicles a day, roughly 17% of them trucks, projected to reach 8,526 by 2043. The structure is 300 ft (91.4 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 301 SB over Four Hole Swamp built?
It was built in 2023, making it 2 years old in 2025.
What condition is US 301 SB over Four Hole Swamp 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 January 2024.
How much traffic does US 301 SB over Four Hole Swamp carry?
About 4,900 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is US 301 SB over Four Hole Swamp?
The structure is 300 ft (91.4 m) long with a longest span of 40 ft (12.2 m) and a deck 46 ft wide.
Who owns US 301 SB over Four Hole Swamp?
It is owned by the State Highway Agency.