US 301 over Salkehatchie River
Allendale County, South Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 301 over Salkehatchie River in Allendale 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 1937 and reconstructed in 1969, making it 88 years old at the 2025 inventory.
- It carries about 3,000 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 45 of the 69 inventoried bridges in Allendale County rated fair (65.2%); 9 (13.0%) 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 → (33.11278, -81.18551)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 419 ft |
| Location | 1.5 Mi N of Ulmers |
| NBI structure number | 000000000002890 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Carolina department of transportation.
Busiest bridges in Allendale County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 278 over Duck Creek | 1922 | 6,200 | Fair |
| US 278 over Southern Railroad | 1961 | 3,500 | Fair |
| US 301 over Salkehatchie River Swamp | 1959 | 3,000 | Fair |
| US 301 over Salkehatchie River Swamp | 1959 | 3,000 | Fair |
| US 278 over Log Creek | 1945 | 2,900 | Fair |
| US 321 over Jackson Creek | 1921 | 2,100 | Fair |
All bridges nearby: Allendale County, SC bridge conditions · every bridge in Allendale County · South Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.