US 21 Bus over Steel Creek
GoodYork County, South Carolina · Fort Mill · Structure no. 000000000010491
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 180 ft
- 3 main spans
- Daily traffic
- 1,950
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 21 Bus over Steel Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 21 Bus over Steel Creek in York County, South Carolina. It was built in 2020, so it is 5 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,950 vehicles a day, roughly 3% of them trucks, projected to reach 2,594 by 2043. The structure is 180 ft (54.9 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | 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 Bus over Steel Creek built?
It was built in 2020, making it 5 years old in 2025.
What condition is US 21 Bus over Steel Creek 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 January 2025.
How much traffic does US 21 Bus over Steel Creek carry?
About 1,950 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is US 21 Bus over Steel Creek?
The structure is 180 ft (54.9 m) long with a longest span of 75 ft (22.9 m) and a deck 47 ft wide.
Who owns US 21 Bus over Steel Creek?
It is owned by the State Highway Agency.