Sc 642 over RR CSXT
FairCharleston County, South Carolina · In N Charleston · Structure no. 000000000002144
- Built
- 1955
- 70 years old, rebuilt 1974
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 256 ft
- 4 main spans
- Daily traffic
- 22,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Sc 642 over RR CSXT is a steel stringer/multi-beam or girder carrying Sc 642 over RR CSXT in Charleston County, South Carolina. It was built in 1955 and reconstructed in 1974, so it is 70 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 6 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 22,500 vehicles a day, roughly 4% of them trucks, projected to reach 33,300 by 2043. The structure is 256 ft (78 m) long and 76 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sc 642 over RR CSXT built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1974.
What condition is Sc 642 over RR CSXT 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 August 2024.
How much traffic does Sc 642 over RR CSXT carry?
About 22,500 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Sc 642 over RR CSXT?
The structure is 256 ft (78 m) long with a longest span of 64 ft (19.5 m) and a deck 76 ft wide.
Who owns Sc 642 over RR CSXT?
It is owned by the State Highway Agency.