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.

Clear

Bridge	State	Scour Status	Condition	Year Built	ADT
DUNCAN CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1952	3,600
TRIB TO PACOLET RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1960	3,600
LAWSON FORK CREEK	South Carolina	Scour Critical — Countermeasures Installed	Good	1977	3,600
SAMMY SWAMP CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1946	3,500
GROVE CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1976	3,500
TRIB. TO ROCKY RIVER	South Carolina	Scour Critical — Countermeasures Installed	Good	1992	3,500
SAMMY SWAMP	South Carolina	Scour Critical — Countermeasures Installed	Fair	1937	3,400
ROCKY CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1968	3,400
NORTH EDISTO RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1955	3,400
LYNCHES RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1961	3,400
FOUR MILE CREEK	South Carolina	Scour Critical — Countermeasures Installed	Good	1990	3,300
WESTFIELD CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1936	3,300
CRIMS CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1939	3,300
MENG CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1981	3,300
BEAVERDAM CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1969	3,300
SHANKLIN CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1968	3,300
FAIRFOREST CREEK	South Carolina	Scour Critical — Countermeasures Installed	Poor	1931	3,200
ROCKY CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1971	3,200
TRIB TO MACHINE CK	South Carolina	Scour Critical — Countermeasures Installed	Poor	1967	3,200
MIDDLE CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1971	3,200
S. EDISTO RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1957	3,200
HORNBUCKLE CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1971	3,200
GROVE CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1971	3,100
COOSAWHATCHIE RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1996	3,100
TRIB CARPENTER CK (2)	South Carolina	Scour Critical — Countermeasures Installed	Fair	1959	3,100
TRIB CARPENTER CK (1)	South Carolina	Scour Critical — Countermeasures Installed	Poor	1959	3,100
REEDY RIVER	South Carolina	Scour Critical — Countermeasures Installed	Good	1988	3,100
EDISTO RIVER SWAMP	South Carolina	Scour Critical — Countermeasures Installed	Fair	1949	3,000
EDISTO RIVER SWAMP	South Carolina	Scour Critical — Countermeasures Installed	Fair	1949	3,000
S. EDISTO RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1953	3,000
MAD DOG CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1973	3,000
TOWN CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1968	3,000
BUCKHEAD CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1931	2,900
FAIRFOREST CREEK	South Carolina	Scour Critical — Countermeasures Installed	Poor	1987	2,900
BEAVERDAM CREEK	South Carolina	Scour Critical — Countermeasures Installed	Good	1987	2,900
WHIPPY SWAMP	South Carolina	Scour Critical — Countermeasures Installed	Good	2002	2,800
SALKEHATCHIE RIVER SWAMP	South Carolina	Scour Critical — Countermeasures Installed	Fair	2002	2,800
MIDDLE TYGER RIVER	South Carolina	Scour Critical — Countermeasures Installed	Poor	1977	2,800
MIDDLE BRANCH BUSHY CK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1982	2,800
TRIB TO KEOWEE RIVER	South Carolina	Scour Critical — Countermeasures Installed	Poor	1958	2,800
ROCKY CREEK	South Carolina	Scour Critical — Countermeasures Installed	Poor	1962	2,800
FIFTEEN MILE CREEK	South Carolina	Scour Critical — Countermeasures Installed	Poor	1965	2,800
TRIB TO RICES CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1967	2,800
SCOTTS CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1978	2,800
BRANCH TO EDISTO RIVER	South Carolina	Scour Critical — Countermeasures Installed	Fair	1931	2,700
MEADOW CREEK	South Carolina	Scour Critical — Countermeasures Installed	Poor	1960	2,700
TURKEY QUARTER CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1967	2,700
CEDAR CREEK #1	South Carolina	Scour Critical — Countermeasures Installed	Fair	1982	2,700
BEAVERDAM CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1962	2,700
CORONACA CREEK	South Carolina	Scour Critical — Countermeasures Installed	Fair	1961	2,700

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.

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