US 21 over Rocky Creek
Poor Condition88 years old4,700 vehicles/day
Location
| State | South Carolina |
| County | Chester |
| Location | City Of Great Falls |
| Carries | US 21 |
| Crosses | Rocky Creek |
| Coordinates | 34.55658, -80.90816 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 402.6 ft (122.7 m) |
| Max Span | 109.9 ft (33.5 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 1766.9 sq m |
| Main Spans | 4 |
| Year Built | 1938 (reconstructed 1975) |
Traffic
| Avg Daily Traffic | 4,700 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000843 |