S-21-147 over Lynches River Swamp
Fair Condition76 years old1,350 vehicles/day
Location
| State | South Carolina |
| County | Florence |
| Location | 5mi SW Effingham |
| Carries | S-21-147 |
| Crosses | Lynches River Swamp |
| Coordinates | 34.03631, -79.76914 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 5.9 ft (1.8 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 58.2 sq m |
| Main Spans | 3 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 1,350 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001710 |