US 21 over Johnson Creek
Fair Condition20 years old2,600 vehicles/day
Location
| State | South Carolina |
| County | Beaufort |
| Location | 13.8 Mi SE Beaufort |
| Carries | US 21 |
| Crosses | Johnson Creek |
| Coordinates | 32.39150, -80.43915 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 648.0 ft (197.5 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 2,844 sq m |
| Main Spans | 12 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 2,600 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000924 |