US 15 over Cowpen Swamp
FairSumter County, South Carolina · 9 MI N of Sumter · Structure no. 000000000000752
- Built
- 1936
- 89 years old, rebuilt 1965
- Condition
- Fair
- inspected May 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 4,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 15 over Cowpen Swamp is a concrete continuous culvert carrying US 15 over Cowpen Swamp in Sumter County, South Carolina. It was built in 1936 and reconstructed in 1965, so it is 89 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 4,000 vehicles a day, roughly 12% of them trucks, projected to reach 6,360 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 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 US 15 over Cowpen Swamp built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1965.
What condition is US 15 over Cowpen Swamp 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 May 2024.
How much traffic does US 15 over Cowpen Swamp carry?
About 4,000 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 15 over Cowpen Swamp?
The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).
Who owns US 15 over Cowpen Swamp?
It is owned by the State Highway Agency.