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 BR PECATONICA RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1948 380
BR N FK BAD AXE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1931 379
FALL CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1940 367
LOWES CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1955 367
LITTLE WOLF RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1967 365
W BR FOND DU LAC RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1912 360
MCCLINTOCK CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1936 352
BLUE MOUNDS BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1922 352
PIGEON RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1942 352
E BR BLACK RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1953 350
TIMBER COULEE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1960 336
BR BUFFALO RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1926 336
BR SPRING BROOK Wisconsin Scour Critical — Countermeasures Installed Fair 1967 331
MINK CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1922 330
MOOSE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1934 325
BAIRD CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1970 323
PRATT CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1957 316
VERMONT CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1958 314
BRAEZELS BRANCH Wisconsin Scour Critical — Countermeasures Installed Poor 1957 313
LAKE WINNEBAGO TRIB Wisconsin Scour Critical — Countermeasures Installed Fair 1925 307
FOREMAN CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1932 306
RED RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1961 305
KELLY BROOK Wisconsin Scour Critical — Countermeasures Installed Good 1969 301
BR ROCKY RUN Wisconsin Scour Critical — Countermeasures Installed Fair 1968 300
ONION RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1931 300
BR SHERMAN CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1925 294
BLACK RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1975 293
ELLIS BRANCH Wisconsin Scour Critical — Countermeasures Installed Poor 1930 293
ELK CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1964 293
DEAD CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1962 293
TURTLE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1965 293
SYLVESTER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1935 290
SQUAW CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1920 283
BR SEYMOUR CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1950 282
BR AMES BRANCH Wisconsin Scour Critical — Countermeasures Installed Poor 1966 282
AMES BRANCH Wisconsin Scour Critical — Countermeasures Installed Poor 1966 282
BR PECATONICA RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1966 276
BR SODA CREEK Wisconsin Scour Critical — Countermeasures Installed Good 1920 272
CROOKED CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1924 270
BEARGRASS CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1925 265
BR EAU CLAIRE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1925 265
OTTER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1945 265
YELLOWSTONE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1968 264
BEARGRASS CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1925 262
BEAR GRASS CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1956 258
BR GRAND RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1924 250
SPRING VALLEY CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2021 250
DUTCH CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1978 250
SPRING BROOK Wisconsin Scour Critical — Countermeasures Installed Fair 1966 248
BIG CAIN CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1965 248

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.