US 321 over Black Swamp
Fair Condition78 years old2,600 vehicles/day
Location
| State | South Carolina |
| County | Jasper |
| Location | 1.5mi SE Of Hamp Co LN |
| Carries | US 321 |
| Crosses | Black Swamp |
| Coordinates | 32.58833, -81.20167 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 134.8 ft (41.1 m) |
| Max Span | 26.9 ft (8.2 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 415.1 sq m |
| Main Spans | 5 |
| Year Built | 1948 |
Traffic
| Avg Daily Traffic | 2,600 (2023) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001515 |