I-77 over Catawba River
FairYork County, South Carolina · 5.3 MI N Rock Hill · Structure no. 000000000006395
- Built
- 1973
- 52 years old, rebuilt 2000
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 1,075 ft
- 10 main spans
- Daily traffic
- 124,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-77 over Catawba River is a steel continuous stringer/multi-beam or girder carrying I-77 over Catawba River in York County, South Carolina. It was built in 1973 and reconstructed in 2000, so it is 52 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 5 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 124,700 vehicles a day, roughly 14% of them trucks, projected to reach 174,580 by 2043. The structure is 1,075 ft (327.7 m) long and 144 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-77 over Catawba River built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2000.
What condition is I-77 over Catawba River 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 June 2024.
How much traffic does I-77 over Catawba River carry?
About 124,700 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is I-77 over Catawba River?
The structure is 1,075 ft (327.7 m) long with a longest span of 130 ft (39.6 m) and a deck 144 ft wide.
Who owns I-77 over Catawba River?
It is owned by the State Highway Agency.