Scour Critical Bridges in South Carolina
1,263 bridges in South Carolina at risk from water erosion around foundations.
Scour Critical Bridges
Scour is the erosion of soil and rock around a bridge's foundation caused by moving water. When foundations are exposed or undermined, a bridge can collapse even if its deck and superstructure are in good condition. Scour is the leading cause of bridge failures in the US. These 1,263 bridges in South Carolina have been identified as vulnerable to scour damage.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| TRIB. TO LITTLE CANE CRK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1959 | 300 |
| STONY FORK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1959 | 300 |
| TRIB TO CONEROSS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1989 | 300 |
| WALNUT CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1983 | 300 |
| CLEAR BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1961 | 300 |
| LONGNOSE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 300 |
| BARTON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1962 | 300 |
| BURNETS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 300 |
| BROCKS MILL STREAM | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 300 |
| BROADWAY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1985 | 300 |
| WILSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 300 |
| MORRIS BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1973 | 300 |
| THICKETTY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 300 |
| PRATERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1954 | 275 |
| TRIB BIG GENEROSTEE CR. | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1955 | 275 |
| BR OF SUCK CK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1955 | 275 |
| BR OF THREE & TWENTY CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1986 | 275 |
| HAYES SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Good | 1994 | 275 |
| TRIB TO GREEN CK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1987 | 275 |
| LONGNOSE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1958 | 275 |
| TRIB TO BEAVER DAM CK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1958 | 275 |
| SNOW CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1959 | 275 |
| JOB CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 275 |
| BR OF WOLF CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1961 | 275 |
| HORSE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 275 |
| SOUTH FORK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1963 | 275 |
| TRIB TO PRATERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 275 |
| TRIB TO PRATERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 275 |
| LITTLE ALLISON CK. | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 275 |
| GILL CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 275 |
| BUFFALO CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1990 | 275 |
| WALNUT CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 275 |
| TRIB TO ROCKY FORK CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 275 |
| PETERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 275 |
| LITTLE BUFFALO CK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1980 | 275 |
| HUFF CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1968 | 275 |
| N. BR OF WILDCAT CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 275 |
| DUNCAN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 275 |
| BEAR SWAMP -1 | South Carolina | Scour Critical — Countermeasures Installed | Good | 2016 | 275 |
| TRIB TO BUSH RIVER #1 | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1981 | 275 |
| BR TO S. DURBIN CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1977 | 275 |
| BR OF HOGSKIN CK. | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1969 | 275 |
| HANGING ROCK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1969 | 275 |
| TINKERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 275 |
| CLEVELAND CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 275 |
| SPEARS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 275 |
| TRIB TO FISHING CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 275 |
| MULBERRY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 275 |
| THICKETTY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 2016 | 275 |
| THICKETTY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 275 |
Scour Critical Rating Codes
| Code 2 — Unaddressed | Bridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken. |
| Code 3 — Countermeasures Installed | Protective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical. |
| Code 6 — Countermeasures Ineffective | Protective measures were installed but have been assessed as ineffective. The bridge requires re-evaluation and additional action. |
About Scour Critical Bridges
Scour critical bridges have been identified through underwater inspection or analysis as having foundations that are unstable or could become unstable during flood conditions. FHWA requires action plans for all scour critical bridges. Famous scour failures include the 1987 Schoharie Creek Bridge collapse in New York.