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 LAKE KEOWEE | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1964 | 125 |
| STAMP CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 125 |
| TOWN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1964 | 125 |
| LONG BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 125 |
| TRIB TO SALUDA RIV | South Carolina | Scour Critical — Countermeasures Installed | Good | 2000 | 125 |
| LITTLE MOUNTAIN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 125 |
| DRY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 125 |
| ROCKY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1965 | 125 |
| FLAGREED CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 125 |
| DURBIN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 125 |
| BUCKHEAD CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 125 |
| OCONEE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 125 |
| BAILEY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 125 |
| PARK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1967 | 125 |
| LONG CANE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 125 |
| COOSAWHATCHIE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 125 |
| TRIB TO ROCKY CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 125 |
| SALEM BR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 125 |
| BEAVER DAM CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 125 |
| CROOKED RUN CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 125 |
| BR TO LAKE MURRAY | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 125 |
| BROCKS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1974 | 125 |
| LEMON SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 125 |
| BR OF LITTLE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Good | 1975 | 125 |
| LITTLE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 125 |
| TRIB TO CANNONS CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1995 | 125 |
| HARD LABOR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 125 |
| CAMP CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 125 |
| TRIB TO CRIMS CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 125 |
| COX CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1975 | 125 |
| BR TO CEDAR CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 125 |
| BR OF LITTLE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 125 |
| BEAVERDAM CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 125 |
| KELSEY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1976 | 125 |
| BLACKS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1977 | 125 |
| JOHNSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1977 | 125 |
| BOWMANS BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 125 |
| BOWMANS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 125 |
| BELLS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1978 | 125 |
| BR OF TURKEY CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 125 |
| MANNS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 125 |
| CLOUDS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 125 |
| LEMON SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 125 |
| LEMON SWAMP | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 125 |
| BYRD CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 125 |
| BEAVER CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1996 | 125 |
| JOHNSON CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 2014 | 125 |
| BR OF THICKETTY CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1980 | 125 |
| TRIB TO REEDY CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1980 | 125 |
| TRIB TO ROCKY BOTTOM CK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1981 | 125 |
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.