Sc 121 over Big Creek
Saluda County, South Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sc 121 over Big Creek in Saluda County, South Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1940 and reconstructed in 1958, making it 85 years old at the 2025 inventory.
- It carries about 3,500 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 69 of the 125 inventoried bridges in Saluda County rated fair (55.2%); 5 (4.0%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: substructure 5 to 6.
- Its most recent inspection on record is dated February 2025, on a 6-month routine inspection cycle.
- 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 → (34.06068, -81.76348)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 152 ft |
| Location | 4.1 Mi N of Saluda |
| NBI structure number | 000000000001133 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | February 2025 |
| Inspection interval (item 91) | 6 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Carolina department of transportation.
Busiest bridges in Saluda County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 378 over Rocky Creek | 1936 | 8,100 | Good |
| US 178 over Little Saluda River | 1949 | 6,900 | Fair |
| Sc 391 over Little Saluda River | 1990 | 5,000 | Fair |
| US 178 over Richland Creek | 1949 | 4,900 | Fair |
| US 178 over Clouds Creek | 1949 | 4,900 | Fair |
| US 178 over Moores Creek | 1949 | 4,900 | Poor |
All bridges nearby: Saluda County, SC bridge conditions · every bridge in Saluda County · South Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.