US 378 over Big Swamp
Good Condition9 years old5,800 vehicles/day
Location
| State | South Carolina |
| County | Florence |
| Location | 1mi W Of Salem |
| Carries | US 378 |
| Crosses | Big Swamp |
| Coordinates | 33.88733, -79.52861 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 360.6 ft (109.9 m) |
| Max Span | 83.0 ft (25.3 m) |
| Deck Width | 86.0 ft (26.2 m) |
| Deck Area | 2879.4 sq m |
| Main Spans | 5 |
| Year Built | 2017 |
Traffic
| Avg Daily Traffic | 5,800 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001372 |