S-20-21 over I-77
Fair Condition47 years old125 vehicles/day
Location
| State | South Carolina |
| County | Fairfield |
| Location | 6mi SE Winnsboro |
| Carries | S-20-21 |
| Crosses | I-77 |
| Coordinates | 34.36248, -80.99686 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Frame |
| Total Length | 332.0 ft (101.2 m) |
| Max Span | 105.0 ft (32 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 1153.7 sq m |
| Main Spans | 5 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 125 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000007254 |