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 CHOESTOEA CR | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 600 |
| CANE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 600 |
| SNOW CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1962 | 600 |
| TRIB TO BAKER CRK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1963 | 600 |
| BR TO LITTLE ALLISON | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 600 |
| TRIB TO REEDY RIVER | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1966 | 600 |
| EIGHTEEN MILE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1966 | 600 |
| LITTLE BUCK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 600 |
| BROAD MOUTH CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1967 | 600 |
| BAKERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1968 | 600 |
| TRIB TO CHOESTOEA CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1969 | 600 |
| 6 & 20 CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1985 | 550 |
| CANNON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 550 |
| THICKETTY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1976 | 550 |
| MILL POND CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1955 | 550 |
| HORSE HEAD BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1970 | 550 |
| THREE RUNS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1975 | 550 |
| TRIB TO ROCKY RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1959 | 550 |
| RICHLAND CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1959 | 550 |
| CHEROKEE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 550 |
| CUPBOARD CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1991 | 550 |
| BR OF BIG BEAVERDAM | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 550 |
| MILL CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1960 | 550 |
| BEAVER CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1988 | 550 |
| BLACK RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 550 |
| BLACK RIVER | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1971 | 550 |
| BLACK RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 550 |
| BR OF CAMPBELL CK. | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 550 |
| LITTLE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1963 | 550 |
| BRANCH OF BUSH RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1963 | 550 |
| BUSH RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1963 | 550 |
| W. BR OF WILSON CK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 550 |
| BROADWAY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 550 |
| E WILSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1983 | 550 |
| SIX MILE CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1965 | 550 |
| BR OF SHOALLY CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1965 | 550 |
| BIG CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1978 | 550 |
| BIG BEAVER DAM | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1972 | 550 |
| FAIRFOREST CREEK | South Carolina | Scour Critical — Countermeasures Installed | Poor | 1982 | 550 |
| JOHNSON CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1954 | 500 |
| SHOAL CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1982 | 500 |
| REEDY RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 500 |
| LONG LICK BRANCH | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1960 | 500 |
| RISTERS CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1979 | 500 |
| COLONEL FORK CREEK | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1971 | 500 |
| UNNAMED STREAM | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1964 | 500 |
| TRIB TO ENOREE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Good | 1979 | 500 |
| JAMISON MILL CREEK | South Carolina | Scour Critical — Countermeasures Installed | Good | 1966 | 500 |
| ENOREE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Fair | 1966 | 500 |
| COOSAWHATCHIE RIVER | South Carolina | Scour Critical — Countermeasures Installed | Good | 1975 | 500 |
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.