US 78 over Four Hole Swamp
Good Condition9 years old9,900 vehicles/day
Location
| State | South Carolina |
| County | Dorchester |
| Location | 3.7 Mi NW Of Ridgeville |
| Carries | US 78 |
| Crosses | Four Hole Swamp |
| Coordinates | 33.13924, -80.33920 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 399.9 ft (121.9 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 46.9 ft (14.3 m) |
| Deck Area | 1743.2 sq m |
| Main Spans | 5 |
| Year Built | 2017 |
Traffic
| Avg Daily Traffic | 9,900 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001455 |