Scour Critical Bridges in Tennessee

581 bridges in Tennessee 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 581 bridges in Tennessee have been identified as vulnerable to scour damage.

Clear

Bridge	State	Scour Status	Condition	Year Built	ADT
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1926	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
MUDDY CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
BRADFORD LAKE	Tennessee	Scour Critical — Countermeasures Installed	Fair	1924	1,629
HATCHIE RIVER	Tennessee	Scour Critical — Countermeasures Installed	Fair	1925	1,629
ALEXANDER CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1965	1,621
BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Fair	1965	1,621
MUSTER GROUND CREEK	Tennessee	Scour Critical — Countermeasures Installed	Poor	1928	1,617
JONES CREEK	Tennessee	Scour Critical — Countermeasures Installed	Good	1986	1,606
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1939	1,606
BETHEL BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Fair	1967	1,535
N. FK. FORKED DEER RIVER	Tennessee	Scour Critical — Countermeasures Installed	Fair	1967	1,535
BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Fair	1964	1,500
MILL CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1927	1,482
BUFFALO RIVER	Tennessee	Scour Critical — Countermeasures Installed	Poor	1958	1,475
BURNSIDE CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1975	1,438
MUDDY CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1951	1,438
INDIAN CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1949	1,360
LITTLE MCADOO CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1960	1,350
BIG MCADOO CREEK	Tennessee	Scour Critical — Countermeasures Installed	Poor	1959	1,350
DUFFYS CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1951	1,341
GRAHAM CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1957	1,324
BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Good	2006	1,290
BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Fair	1958	1,288
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Fair	1951	1,254
HORSE CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1951	1,254
CANEY BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Fair	1959	1,238
PEARSONS CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1940	1,235
CONASAUGA CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1973	1,233
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Good	1938	1,222
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Good	1978	1,222
OVERFLOW	Tennessee	Scour Critical — Countermeasures Installed	Good	1938	1,222
STONES RIVER	Tennessee	Scour Critical — Countermeasures Installed	Good	1965	1,218
GALLAGHER CREEK	Tennessee	Scour Critical — Countermeasures Installed	Poor	1930	1,214
TRACE CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1978	1,180
LONG CREEK	Tennessee	Scour Critical — Countermeasures Installed	Poor	1962	1,178
KELLY BRANCH	Tennessee	Scour Critical — Countermeasures Installed	Good	1974	1,167
BIG SANDY RIVER	Tennessee	Scour Critical — Countermeasures Installed	Fair	1957	1,146
MCKINNIE CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1993	1,140
SALINE CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1975	1,119
HARPETH RIVER	Tennessee	Scour Critical — Countermeasures Installed	Fair	1960	1,102
ROGERS CREEK	Tennessee	Scour Critical — Countermeasures Installed	Fair	1963	1,086
CHATATA CREEK	Tennessee	Scour Critical — Countermeasures Installed	Good	1963	1,082

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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