I-20 over Horse Creek
Aiken County, South Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-20 over Horse Creek in Aiken County, South Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1966, making it 59 years old at the 2025 inventory.
- It carries about 44,500 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 114 of the 198 inventoried bridges in Aiken County rated fair (57.6%); 20 (10.1%) 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 → (33.59766, -81.86968)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 32 ft |
| Location | 6 Mi NW of Granitiville |
| NBI structure number | 000000000004689 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Carolina department of transportation.
Busiest bridges in Aiken County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-20 over Savannah River | 2021 | 64,300 | Good |
| I-20 over Fox Creek | 1966 | 50,200 | Fair |
| I-20 over High Tower Branch | 1966 | 44,500 | Fair |
| US 25 over I-20 | 2009 | 37,300 | Good |
| US 1 over Southern RR (no 1) | 1952 | 27,000 | Fair |
| US 1 over U S 1 Con Interchange | 1960 | 27,000 | Good |
All bridges nearby: Aiken County, SC bridge conditions · every bridge in Aiken County · South Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.