US 78 over Great Cypress Swamp #4
Fair Condition107 years old7,800 vehicles/day
Location
| State | South Carolina |
| County | Dorchester |
| Location | 6.6 Mi NW Of Sumrvl |
| Carries | US 78 |
| Crosses | Great Cypress Swamp #4 |
| Coordinates | 33.08669, -80.26498 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 5 (Fair) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 79.1 ft (24.1 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 65.0 ft (19.8 m) |
| Deck Area | 477.2 sq m |
| Main Spans | 6 |
| Year Built | 1919 (reconstructed 1934) |
Traffic
| Avg Daily Traffic | 7,800 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000000338 |