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 SCOTTS CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1957 | 100 |
| HOBSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1957 | 100 |
| ROCKY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1960 | 100 |
| ABINGDON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1961 | 100 |
| WELCH CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1961 | 100 |
| HELLERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 100 |
| BIG CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 100 |
| TURKEY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1963 | 100 |
| SOUTH FORK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1965 | 100 |
| BRANCH OF BIG CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 100 |
| UNNAMED | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1966 | 100 |
| BR OF HOGSKIN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 100 |
| MANGUM BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1967 | 100 |
| BR TO LAKE GREENWOOD | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 100 |
| WILEY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 100 |
| LOG CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1969 | 100 |
| BR GRANNIES QUARTER CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 100 |
| WEST CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 100 |
| TRIB THREE & TWENTY CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 100 |
| MILL CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 100 |
| LITTLE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 100 |
| CONRAD CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 100 |
| HALFWAY SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 100 |
| CYPRESS SWAMP -NO.1 | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1981 | 100 |
| TRIB TO FORK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1989 | 100 |
| TRIB TO SALUDA RIVER | South Carolina | Scour Critical — Countermeasures Installed | Good | 1989 | 100 |
| BYRD CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1957 | 75 |
| GARRISON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1959 | 75 |
| BR OF LONG CANE CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 75 |
| SINGLETON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1961 | 75 |
| CEDAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 75 |
| TRIB TO SENECA CRK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1962 | 75 |
| RODENS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 75 |
| HORSE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 75 |
| STONEHOUSE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 75 |
| BIGGERS BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 75 |
| BR OF MORRIS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1969 | 75 |
| UNNAMED STREAM | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 75 |
| INDIAN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 75 |
| RIVER OAKS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 75 |
| GIBBSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 75 |
| GIBBSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 75 |
| TYGER RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 75 |
| CEDAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 75 |
| BR TO CORONACA CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 75 |
| BR. FANNING CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 75 |
| DOUBLE BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 75 |
| TRIB TO LAKE MURRAY | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 75 |
| BEAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 75 |
| MINE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1986 | 75 |
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.