S-14-307 over Sammy Swamp
PoorClarendon County, South Carolina · 8MI N Summerton · Structure no. 000000000004292
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 75 ft
- 5 main spans
- Daily traffic
- 350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-14-307 over Sammy Swamp is a concrete slab carrying S-14-307 over Sammy Swamp in Clarendon County, South Carolina. It was built in 1964, so it is 61 years old, older than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 350 vehicles a day, roughly 5% of them trucks, projected to reach 511 by 2043. The structure is 75 ft (22.9 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-14-307 over Sammy Swamp built?
It was built in 1964, making it 61 years old in 2025.
What condition is S-14-307 over Sammy Swamp in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does S-14-307 over Sammy Swamp carry?
About 350 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-14-307 over Sammy Swamp?
The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-14-307 over Sammy Swamp?
It is owned by the State Highway Agency.