S-15-66 over Calfpen Swamp
Good Condition16 years old100 vehicles/day
Location
| State | South Carolina |
| County | Colleton |
| Location | 13 Mi SW Waltb |
| Carries | S-15-66 |
| Crosses | Calfpen Swamp |
| Coordinates | 32.71423, -80.69586 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 129.9 ft (39.6 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 435.6 sq m |
| Main Spans | 3 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 100 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001946 |