Ramp On/off I-77NB over US 21
Good Condition22 years old8,300 vehicles/day
Location
| State | South Carolina |
| County | York |
| Location | 4 Mi NE Of Rock Hill |
| Carries | Ramp On/off I-77NB |
| Crosses | US 21 |
| Coordinates | 34.97370, -80.98646 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 201.1 ft (61.3 m) |
| Max Span | 136.2 ft (41.5 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 803.0 sq m |
| Main Spans | 3 |
| Year Built | 2004 |
Traffic
| Avg Daily Traffic | 8,300 (2022) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 7 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000009857 |