Scour Critical Bridges in Michigan

1,081 bridges in Michigan 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 1,081 bridges in Michigan have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
STONYCREEK Michigan Scour Critical — Countermeasures Installed Poor 1926 146
AUGRES RIVER Michigan Scour Critical — Countermeasures Installed Fair 1925 145
ALDER CREEK Michigan Scour Critical — Countermeasures Installed Fair 1926 143
CHICAGON CREEK Michigan Scour Critical — Countermeasures Installed Poor 1900 142
PAINT CREEK Michigan Scour Critical — Countermeasures Installed Fair 1984 142
SUCKER CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1965 140
TROUT FALLS CREEK Michigan Scour Critical — Countermeasures Installed Poor 1938 140
JONES CREEK Michigan Scour Critical — Countermeasures Installed Fair 1962 139
MILL CREEK Michigan Scour Critical — Countermeasures Installed Fair 1944 139
LOST CREEK Michigan Scour Critical — Countermeasures Installed Fair 1920 138
SALMON - TROUT RIVER Michigan Scour Critical — Countermeasures Installed Poor 1947 137
E BR STURGEON RIVER Michigan Scour Critical — Countermeasures Installed Poor 1945 135
PORTER CREEK Michigan Scour Critical — Countermeasures Installed Poor 1938 135
MAPLE RIVER Michigan Scour Critical — Countermeasures Installed Poor 1986 133
U OF M LAKE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1990 133
PAINT RIVER Michigan Scour Critical — Countermeasures Installed Poor 1962 133
TUTTLEVILLE DRAIN Michigan Scour Critical — Countermeasures Installed Good 1980 133
STONY CREEK Michigan Scour Critical — Countermeasures Installed Poor 1920 132
SHAD CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Good 1981 132
ST JOSEPH RIVER Michigan Scour Critical — Countermeasures Installed Good 1987 130
PIGEON RIVER Michigan Scour Critical — Countermeasures Installed Fair 1980 130
HALE CREEK Michigan Scour Critical — Countermeasures Installed Good 1952 130
FORTUNE CREEK Michigan Scour Critical — Countermeasures Installed Poor 1921 130
LOCKWOOD DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1930 130
BUSH CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1978 129
MILL CREEK Michigan Scour Critical — Countermeasures Installed Poor 1974 129
NORTH SHADE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1977 126
NORTH SHADE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1981 126
BULLOCK CREEK Michigan Scour Critical — Countermeasures Installed Poor 1988 125
WERNERS CREEK Michigan Scour Critical — Countermeasures Installed Fair 1925 124
HUBER CREEK Michigan Scour Critical — Countermeasures Installed Fair 1925 124
LITTLE MUSKEGON RIVER Michigan Scour Critical — Countermeasures Installed Fair 1987 124
NORTH BR CHIPPEWA RIVER Michigan Scour Critical — Countermeasures Installed Poor 1937 123
FLAT RIVER Michigan Scour Critical — Countermeasures Installed Fair 1871 122
CONSTANT DURUSSEL DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1948 121
DRAIN #115 Michigan Scour Critical — Countermeasures Installed Fair 1978 121
RABBIT RIVER Michigan Scour Critical — Countermeasures Installed Good 1982 120
BIRD CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1983 120
E BR PINNEBOG RIVER Michigan Scour Critical — Countermeasures Installed Fair 1979 120
BAD AXE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1986 120
SOUTH BR WHITE CREEK Michigan Scour Critical — Countermeasures Installed Poor 1971 120
JOHNSON CREEK Michigan Scour Critical — Countermeasures Installed Fair 1978 120
RAISIN RIVER Michigan Scour Critical — Countermeasures Installed Poor 1942 120
S FORK OF HAYWORTH Michigan Scour Critical — Countermeasures Installed Poor 1890 119
BEAVER CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1941 118
NORTH SHADE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1978 118
DRAIN #115 Michigan Scour Critical — Countermeasures Installed Fair 1978 117
BIG BAIRD CREEK Michigan Scour Critical — Countermeasures Installed Poor 1957 116
WISCOGGIN DAIRN Michigan Scour Critical — Countermeasures Installed Good 1986 115
SHAD CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Good 1978 111

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.