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
MULLET RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1920 47
ONION RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1935 47
ONION RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1966 47
SILVER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1940 47
SILVER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1967 47
W FK KICKAPOO RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1950 47
BR S FK BAD AXE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1980 47
BISHOP CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1951 47
BR E BR ROCK RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1927 47
WALLA WALLA CREEK Wisconsin Scour Critical — Countermeasures Installed Good 1917 46
MULLET RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1920 45
SKUNK CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1941 45
N BR PESHTIGO RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1924 44
BR LITTLE RIB RIVER Wisconsin Scour Critical — Countermeasures Installed Good 2020 44
BR BLACK CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1946 44
DREWEK CREEK Wisconsin Scour Critical — Countermeasures Installed Good 1938 44
DRY CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1973 43
SAND CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1913 42
N BR MANITOWOC RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1920 41
BR PINE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1920 41
APPLE BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1969 41
N CHANNEL MISSISSIPPI RI Wisconsin Scour Critical — Countermeasures Installed Fair 1916 40
BR MILL CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1950 40
W BR BLUE MOUNDS CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1930 40
LAWERENCE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1924 40
EIGHT MILE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1920 40
LAKE POYGAN TRIB Wisconsin Scour Critical — Countermeasures Installed Poor 1920 40
N BR OCONTO RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1913 40
BR BURGHARDT CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1934 40
BR NIPPERSINK CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2016 40
NEENAH SLOUGH Wisconsin Scour Critical — Countermeasures Installed Poor 1925 38
BEETOWN BRANCH Wisconsin Scour Critical — Countermeasures Installed Poor 1950 37
BR LITTLE EAU PLEINE R Wisconsin Scour Critical — Countermeasures Installed Fair 1970 36
ADLER CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1927 35
N FK BAD AXE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1933 35
N BR PESHTIGO RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1921 34
SAND SPRING CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1945 33
BLACK LAKE THOROUGHFARE Wisconsin Scour Critical — Countermeasures Installed Fair 1970 32
TRIBUTARY OF MUD CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2005 30
E FK WHITE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1934 30
KILLSNAKE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1925 30
EAU PLEINE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1965 30
PORKY CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1967 30
RANDALL CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1920 30
BR FREEMAN CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1958 30
BRUNET RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1960 30
BR RIB RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1919 30
CORRECTION CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1930 29
BAD RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1975 25
BR LIGHTNING CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1920 25

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.