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 |
|---|---|---|---|---|---|
| ROCKY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1961 | 7,400 |
| BEAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1930 | 6,900 |
| COXS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 6,900 |
| GILLS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1973 | 6,700 |
| BRUSHY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 6,700 |
| TRIB TO REEDY RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1958 | 6,700 |
| TRIB TO REEDY RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1958 | 6,700 |
| TRIB TO BRUSHY CK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1966 | 6,700 |
| GILLS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 6,600 |
| GILDER CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 6,600 |
| SKEEBO BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1958 | 6,450 |
| HOLSTON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1931 | 6,300 |
| THREE & TWENTY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1949 | 6,300 |
| COLONELS FORK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1974 | 6,200 |
| BRUSHY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1977 | 6,000 |
| BLACK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 6,000 |
| CATFISH BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1941 | 5,900 |
| GEORGES CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 5,900 |
| OX SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Good | 2003 | 5,800 |
| TRIB TO ENOREE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 5,800 |
| REEDY RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 5,600 |
| GILDER CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1970 | 5,500 |
| BRUSHY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1987 | 5,500 |
| SIMMONS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 5,400 |
| BEAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 5,200 |
| BR TO LITTLE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Good | 1980 | 5,200 |
| PERKINS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 5,000 |
| TRIB TO 18 MILE CR | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1958 | 5,000 |
| BR OF BIG ALLISON CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 4,900 |
| TURNER CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1989 | 4,900 |
| GRAYS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1983 | 4,800 |
| LITTLE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 4,800 |
| BEAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1929 | 4,700 |
| MITCHELL SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Good | 1981 | 4,700 |
| MITCHELL SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1981 | 4,700 |
| LUCY POINT CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 4,600 |
| BRUSHY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 4,500 |
| TOWN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 4,300 |
| FROHAWK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 4,300 |
| TRIB TO S TYGER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 4,300 |
| HAMILTON CR | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1957 | 4,200 |
| MACHINE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 4,100 |
| TRIB TO 6 MI.CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1973 | 4,100 |
| IRENE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1954 | 4,000 |
| BROADWAY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 4,000 |
| RICHLAND CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 3,900 |
| FOUR HOLE SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 3,900 |
| SOUTH SALUDA RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 3,700 |
| TRIB TO PACOLET RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 3,600 |
| DUNCAN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1952 | 3,600 |
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.