S-6-57 over Salkehatchie River Swamp
Barnwell County, South Carolina · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S-6-57 over Salkehatchie River Swamp in Barnwell County, South Carolina, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- It carries about 150 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 14 of the 76 inventoried bridges in Barnwell County rated good (18.4%); 0 (0.0%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (33.16771, -81.26028)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 100 ft |
| Location | 8 Mi E Barnwell |
| NBI structure number | 000000000004261 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Carolina department of transportation.
Busiest bridges in Barnwell County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 278 over Turkey Creek | 1931 | 16,900 | Fair |
| US 278 over Salkehatchie River | 1941 | 6,700 | Fair |
| Sc 70 over Toby Creek | 1939 | 4,000 | Good |
| US 278 over Spring Fellow Creek | 1952 | 3,700 | Fair |
| US 278 over Rosemary Creek | 1952 | 3,700 | Fair |
| US 278 over Buck Creek | 1952 | 3,400 | Fair |
All bridges nearby: Barnwell County, SC bridge conditions · every bridge in Barnwell County · South Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.