S-45-26 over Mt. Hope Swamp
Williamsburg County, South Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S-45-26 over Mt. Hope Swamp in Williamsburg County, South Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 275 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 105 of the 194 inventoried bridges in Williamsburg County rated fair (54.1%); 12 (6.2%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (33.59043, -80.03716)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 60 ft |
| Location | 2.7 Mi W Greeleyville |
| NBI structure number | 000000000009810 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Carolina department of transportation.
Busiest bridges in Williamsburg County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sc 527 over S.c.l. RR | 1968 | 7,700 | Fair |
| Sc 41 over Black River | 2003 | 7,400 | Good |
| Sc 41 over Horsepen Creek | 1998 | 7,400 | Good |
| Sc 41 over Black Mingo Creek | 1942 | 6,700 | Fair |
| US 52 over Smith Swamp | 1952 | 6,200 | Good |
| US 52 over Black River Swamp | 2000 | 6,100 | Good |
All bridges nearby: Williamsburg County, SC bridge conditions · every bridge in Williamsburg County · South Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.