US 17 Alt over Great Swamp
Fair Condition88 years old11,500 vehicles/day
Location
| State | South Carolina |
| County | Colleton |
| Location | Walterboro |
| Carries | US 17 Alt |
| Crosses | Great Swamp |
| Coordinates | 32.88914, -80.68789 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 89.9 ft (27.4 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 55.4 ft (16.9 m) |
| Deck Area | 463.1 sq m |
| Main Spans | 3 |
| Year Built | 1938 (reconstructed 1970) |
Traffic
| Avg Daily Traffic | 11,500 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000853 |