S-21-107 over Alligator Branch
Good Condition3 years old10,200 vehicles/day
Location
| State | South Carolina |
| County | Florence |
| Location | 3 Mi SW Florence |
| Carries | S-21-107 |
| Crosses | Alligator Branch |
| Coordinates | 34.13654, -79.78213 |
Condition Ratings
| Overall Condition | Good |
| Deck | 9 (Excellent) |
| Superstructure | 9 (Excellent) |
| Substructure | 9 (Excellent) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 100.1 ft (30.5 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 83.0 ft (25.3 m) |
| Deck Area | 771.6 sq m |
| Main Spans | 3 |
| Year Built | 2023 |
Traffic
| Avg Daily Traffic | 10,200 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000010344 |