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
N BR CRAWFISH RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1928 630
APPLE CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1911 625
TROUT CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2021 610
E BR BIG SANDY CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1967 602
LITTLE SANDY CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1972 600
S BR LITTLE WOLF RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1890 597
E BR FOND DU LAC RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1967 587
BEAVER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1932 587
S BR PIGEON RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1940 565
WAUSAUKEE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1920 560
HOHLFELD COULEE CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1939 550
STEWART CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2022 540
BR BONNER BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1925 540
N BR TREMPEALEAU RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1936 530
DENT CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1930 530
DEER TAIL CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1962 529
ROCKY CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1972 510
YELLOW RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1974 510
PESHTIGO RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1976 500
GRANDTOSA CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1966 500
ROCK CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1932 500
LAKESIDE PARK LAGOON Wisconsin Scour Critical — Countermeasures Installed Fair 1965 500
FOX RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1958 500
MUD BRANCH Wisconsin Scour Critical — Countermeasures Installed Fair 1969 490
FOX RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1961 490
HEMLOCK CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1961 485
BR MULLET RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1954 480
BR HEMLOCK CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1914 480
MILL CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1969 479
BR HEMLOCK CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1965 479
TURTLE CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1887 474
WINDLAKE DRAINAGE CANAL Wisconsin Scour Critical — Countermeasures Installed Poor 1957 470
PIGEON RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1968 461
BR N FK BEAVER CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1925 455
YAHARA RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1897 450
BRANCH OF ELK CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2022 440
BR PECATONICA RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1969 434
EAGLE LAKE Wisconsin Scour Critical — Countermeasures Installed Poor 1955 431
KOSHKONONG CREEK Wisconsin Scour Critical — Countermeasures Installed Good 2010 430
S BR LITTLE WOLF RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1900 421
E BR HONEY CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1925 420
WAUPACA RIVER Wisconsin Scour Critical — Countermeasures Installed Good 1970 414
SPRING BROOK Wisconsin Scour Critical — Countermeasures Installed Fair 1939 414
BR RICHLAND CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1956 411
PENSAUKEE RIVER Wisconsin Scour Critical — Countermeasures Installed Fair 1924 410
BR MUD CREEK Wisconsin Scour Critical — Countermeasures Installed Good 1992 400
WHITE HOLLOW CREEK Wisconsin Scour Critical — Countermeasures Installed Poor 1948 400
KOHLSVILLE RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1926 395
TOAD CREEK Wisconsin Scour Critical — Countermeasures Installed Fair 1950 392
S BR EMBARASS RIVER Wisconsin Scour Critical — Countermeasures Installed Poor 1966 390

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.