S-45-453 over Thorntree Swamp
Fair Condition59 years old125 vehicles/day
Location
| State | South Carolina |
| County | Williamsburg |
| Location | 4.0 Mi N Lane |
| Carries | S-45-453 |
| Crosses | Thorntree Swamp |
| Coordinates | 33.58147, -79.84504 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 75.1 ft (22.9 m) |
| Max Span | 15.1 ft (4.6 m) |
| Deck Width | 27.6 ft (8.4 m) |
| Deck Area | 192.4 sq m |
| Main Spans | 5 |
| Year Built | 1967 (reconstructed 1995) |
Traffic
| Avg Daily Traffic | 125 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000005179 |