C-45-400 over Smiths Swamp
PoorClosed to trafficWilliamsburg County, South Carolina · 4.3 MI NE Cades · Structure no. 000000000004677
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 200
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
C-45-400 over Smiths Swamp is a concrete slab carrying C-45-400 over Smiths Swamp in Williamsburg County, South Carolina. It was built in 1965, so it is 60 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 3 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 256 by 2043. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 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 C-45-400 over Smiths Swamp built?
It was built in 1965, making it 60 years old in 2025.
What condition is C-45-400 over Smiths 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 C-45-400 over Smiths Swamp carry?
About 200 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is C-45-400 over Smiths Swamp?
The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns C-45-400 over Smiths Swamp?
It is owned by the County Highway Agency.