US 21 over Black Creek
Fair Condition89 years old1,350 vehicles/day
Location
| State | South Carolina |
| County | Colleton |
| Location | 14.0 Mi SW Of Walterboro |
| Carries | US 21 |
| Crosses | Black Creek |
| Coordinates | 32.76936, -80.83761 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 125.0 ft (38.1 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 46.9 ft (14.3 m) |
| Deck Area | 544.8 sq m |
| Main Spans | 5 |
| Year Built | 1937 (reconstructed 1971) |
Traffic
| Avg Daily Traffic | 1,350 (2023) |
| Truck Traffic | 28% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000000780 |