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
BR E FK BLACK RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1974 58
MEADOWS CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1959 58
GRANT CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1928 58
BR YAHARA RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1930 58
SHAW CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1924 58
CAMBRIA CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1969 58
WILDCAT CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1974 58
MUD CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1931 58
RICHLAND CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1958 58
KOHLSVILLE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1925 58
PIKE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1933 58
COTTAGE INN BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1940 58
BONNER BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1948 58
COPPER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1959 58
BROWN BRANCH Wisconsin Scour Critical — Countermeasures Installed Good 1936 58
PECATONICA RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1958 58
BR WOLF CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1947 58
BR CEDAR CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1930 58
BR N BR MILWAUKEE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1950 58
LITTLE EAU PLEINE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1965 58
BR E BR ROCK RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1925 58
SAUK CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1951 58
BR RUSH RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1965 58
S BR LITTLE WOLF RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1890 56
LITTLE TURTLE CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1970 55
N BR PINE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1940 55
POTATO CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1912 54
NEBAGAMON CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1925 53
SPRUCE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1930 53
UPPER TAMARACK RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1925 53
GILBERT CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1944 53
OCONOMOWOC RIVER-W. CHAN Wisconsin Scour Critical — Countermeasures Installed Fair 1917 53
GREGORY BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1939 53
LITTLE PLATTE RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1952 53
WILLOW BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1960 53
OCONOMOWOC R.-E. CHANNEL Wisconsin Scour Critical — Countermeasures Installed Fair 1917 53
PROSPECT CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1927 53
W BR ROCK RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1925 52
SNEAD CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1945 52
SPAFFORD CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1950 52
N BR PINE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1970 52
ROCK CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1946 52
BEAR CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1940 52
DRY HOLLOW CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1920 51
BURNS CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1930 51
MOLE BROOK Wisconsin Scour Critical — Countermeasures Installed Fair 1964 51
JOHNSON CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1935 51
BR LOWER PINE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1930 50
BR HAY RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1930 50
WAUSAUKEE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1920 50

Scour Critical Rating Codes

Code 2 — UnaddressedBridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures InstalledProtective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures IneffectiveProtective 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.