Structure 549 · Horry County, SC
Carries US 701 over Poplar Swamp, 6.5mi NW Of Conway.
A culvert 21 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | South Carolina |
| County | Horry |
| Location | 6.5mi NW Of Conway |
| Carries | US 701 |
| Crosses | Poplar Swamp |
| Coordinates | 33.93927, -79.03055 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 77.1 ft (23.5 m) |
| Deck Area | 148.1 sq m |
| Main Spans | 2 |
| Year Built | 1931 (reconstructed 1959) |
| Avg Daily Traffic | 14,100 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 3 |
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000000549 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.