S-45-454 over Br of Clapp Swamp
PoorClosed to trafficWilliamsburg County, South Carolina · 5.0 MI W Cades · Structure no. 000000000005407
- Built
- 1968
- 57 years old
- Condition
- Poor
- inspected September 2024
- Type
- Slab
- Concrete
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-45-454 over Br of Clapp Swamp is a concrete slab carrying S-45-454 over Br of Clapp Swamp in Williamsburg County, South Carolina. It was built in 1968, so it is 57 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. Its operating status is: closed to all traffic.
It carries about 300 vehicles a day, roughly 7% of them trucks, projected to reach 417 by 2024. The structure is 45 ft (13.7 m) long and 28 ft wide. 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 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-45-454 over Br of Clapp Swamp built?
It was built in 1968, making it 57 years old in 2025.
What condition is S-45-454 over Br of Clapp 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 September 2024.
How much traffic does S-45-454 over Br of Clapp Swamp carry?
About 300 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is S-45-454 over Br of Clapp Swamp?
The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-45-454 over Br of Clapp Swamp?
It is owned by the State Highway Agency.