S-46-284 over I-77
FairYork County, South Carolina · 4.0 MI NE Rock Hill · Structure no. 000000000006825
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected April 2023
- Type
- Frame
- Steel
- Length
- 270 ft
- 4 main spans
- Daily traffic
- 8,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-46-284 over I-77 is a steel frame carrying S-46-284 over I-77 in York County, South Carolina. It was built in 1975, so it is 50 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 8,000 vehicles a day, roughly 4% of them trucks, projected to reach 10,640 by 2043. The structure is 270 ft (82.3 m) long and 47 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-46-284 over I-77 built?
It was built in 1975, making it 50 years old in 2025.
What condition is S-46-284 over I-77 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 April 2023.
How much traffic does S-46-284 over I-77 carry?
About 8,000 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is S-46-284 over I-77?
The structure is 270 ft (82.3 m) long with a longest span of 90 ft (27.4 m) and a deck 47 ft wide.
Who owns S-46-284 over I-77?
It is owned by the State Highway Agency.