US 521 SB over RR CSXT
PoorLancaster County, South Carolina · 11.5 MI N of Lancaster · Structure no. 000000000000039
- Built
- 1929
- 96 years old, rebuilt 1962
- Condition
- Poor
- inspected July 2024
- Type
- Tee Beam
- Concrete
- Length
- 128 ft
- 4 main spans
- Daily traffic
- 12,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 521 SB over RR CSXT is a concrete tee beam carrying US 521 SB over RR CSXT in Lancaster County, South Carolina. It was built in 1929 and reconstructed in 1962, so it is 96 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.
It carries about 12,150 vehicles a day, roughly 6% of them trucks, projected to reach 16,767 by 2043. The structure is 128 ft (39 m) long and 40 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 521 SB over RR CSXT built?
It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1962.
What condition is US 521 SB over RR CSXT 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 July 2024.
How much traffic does US 521 SB over RR CSXT carry?
About 12,150 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 521 SB over RR CSXT?
The structure is 128 ft (39 m) long with a longest span of 36 ft (11 m) and a deck 40 ft wide.
Who owns US 521 SB over RR CSXT?
It is owned by the State Highway Agency.