US 21 over Catawba River
GoodYork County, South Carolina · 4.1 MI N of Rock Hill · Structure no. 000000000001230
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 1,000 ft
- 8 main spans
- Daily traffic
- 30,900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 21 over Catawba River is a prestressed concrete stringer/multi-beam or girder carrying US 21 over Catawba River in York County, South Carolina. It was built in 2013, so it is 12 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 30,900 vehicles a day, roughly 4% of them trucks, projected to reach 40,479 by 2043. The structure is 1,000 ft (304.8 m) long and 92 ft wide. If it were closed, the detour would be 14.3 mi (23 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 21 over Catawba River built?
It was built in 2013, making it 12 years old in 2025.
What condition is US 21 over Catawba River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.
How much traffic does US 21 over Catawba River carry?
About 30,900 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 21 over Catawba River?
The structure is 1,000 ft (304.8 m) long with a longest span of 125 ft (38.1 m) and a deck 92 ft wide.
Who owns US 21 over Catawba River?
It is owned by the State Highway Agency.