US 21 over Congaree River
Fair Condition73 years old28,000 vehicles/day
Location
| State | South Carolina |
| County | Lexington |
| Location | 1 Mi SW Of Columbia |
| Carries | US 21 |
| Crosses | Congaree River |
| Coordinates | 33.98793, -81.04683 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 1463.9 ft (446.2 m) |
| Max Span | 113.8 ft (34.7 m) |
| Deck Width | 54.5 ft (16.6 m) |
| Deck Area | 7406.9 sq m |
| Main Spans | 13 |
| Year Built | 1953 |
Traffic
| Avg Daily Traffic | 28,000 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001965 |