I-77 over Sc 161
Fair Condition53 years old74,500 vehicles/day
Location
| State | South Carolina |
| County | York |
| Location | 4.4 Mi N Rock Hill |
| Carries | I-77 |
| Crosses | Sc 161 |
| Coordinates | 34.97680, -80.98802 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 219.8 ft (67 m) |
| Max Span | 107.9 ft (32.9 m) |
| Deck Width | 134.2 ft (40.9 m) |
| Deck Area | 2740.3 sq m |
| Main Spans | 3 |
| Year Built | 1973 (reconstructed 2000) |
Traffic
| Avg Daily Traffic | 74,500 (2023) |
| Truck Traffic | 14% |
| Lanes On Bridge | 8 |
| Lanes Under Bridge | 6 |
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 | 000000000006394 |