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
PLUM CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Good	2001	175
TEN MILE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1922	172
N FK MAIN CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1957	172
COUNTY LINE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Good	1928	171
W FORK KNAPP CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1920	170
BR BLACKHAWK CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1923	165
BEARGRASS CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1955	163
BR KNIGHTS CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1975	162
BEARGRASS CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1924	161
LITTLE PLATTE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1960	161
WHITEHEAD CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1935	158
W BR MONTREAL RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1912	157
BREWERY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1940	156
MECAN RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1977	153
E BR SHIOC RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1918	152
LITTLE WOLF RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Good	1960	151
BR WILLOW RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1924	150
PECATONICA RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1929	145
S BR LITTLE WOLF RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1974	144
POTATO CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1957	142
CANON CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1961	140
BR STEWARTS CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1930	139
LITTLE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1927	135
DUNCAN CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1925	135
LOON CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Good	1995	130
LITTLE YELLOW RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Good	1983	130
BLACK CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1940	128
BR SCOTCH CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1931	127
RUSH CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1927	125
PENSAUKEE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1970	125
S BR PIGEON RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1930	125
TRIMBELLE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1979	125
SQUAW CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1956	122
N BR EMBARRASS RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1920	120
PENSAUKEE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1925	120
EMBARRASS RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1914	120
M BR EMBARRASS RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1910	120
MILL CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1928	120
SOUTH SQUAW CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1938	120
BEARGRASS CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1921	120
M BR EMBARRASS RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1965	120
LOST CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1930	120
ONE MILE CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1928	120
BIG HAY MEADOW CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Good	1971	119
NOISY CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Poor	1922	119
WHITCOMB CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1964	119
INDIAN CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1936	117
KOHLSVILLE RIVER	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1926	117
SPRING CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1961	117
SPRING CREEK	Wisconsin	Scour Critical — Countermeasures Installed	Fair	1921	117

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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