Scour Critical Bridges in Wisconsin

751 bridges in Wisconsin 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 751 bridges in Wisconsin have been identified as vulnerable to scour damage.

Clear

Bridge	State	Scour Status	Condition	Year Built	ADT
DILL CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1969	116
S BR YELLOW RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1967	116
S BR ONEILL CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1976	116
S. FK. POPPLE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1956	116
S BR ONEILL CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1959	116
BR LITTLE RIB RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1929	112
S FK JUMP RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1959	112
SQUAW CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1958	112
PRAIRIE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1964	111
HAY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1921	111
LOWER PINE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1913	109
WILLOW RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Good	1976	109
S BR NEW WOOD RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1973	107
BLUE MOUNDS CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1979	107
ST CROIX RIVER 15	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1928	107
MIDDLE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1940	107
COPPER CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1918	107
BEAVER CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1978	107
HAY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1967	107
HAY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1920	107
BARK RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1965	107
LITTLE TURTLE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1976	106
LITTLE TURTLE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1976	106
BR CEDAR CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1953	105
W BR LITTLE SUGAR RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1934	105
ERICKSON CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1949	105
DOUGHERTY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1935	105
BR DOUGHERTY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1935	105
DOUGHERTY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1952	105
BR BURGY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1939	105
ALLEN CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1954	105
SPRING CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1959	105
E BR RICHLAND CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1954	105
JORDAN CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1956	105
E BR PECATONICA RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1961	105
BR BIG GREEN RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1950	104
BR PLATTE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1955	104
KILLSNAKE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1924	102
KILLSNAKE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1918	102
PLUM RUN CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	2010	102
BEAVER CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1978	102
SIX MILE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Good	1969	102
CASS VALLEY BRANCH	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1930	102
RATTLESNAKE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1969	102
RATTLESNAKE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1969	102
RATTLESNAKE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1960	102
MARTIN BRANCH	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1935	102
BR PLATTE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1930	102
SUGARBUSH CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1940	102
MIDDLE BR EMBARASS RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1922	101

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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