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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
BERRY DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1945 200
MIDDLE BR DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1970 200
BR. #1 NORTHWEST DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1965 200
BIG CREEK A DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1920 198
LAIRD CREEK Michigan Scour Critical — Countermeasures Installed Good 1956 198
SWAMP RAISIN CREEK Michigan Scour Critical — Countermeasures Installed Poor 1960 198
HIGH BANK CREEK Michigan Scour Critical — Countermeasures Installed Poor 1900 197
JONES CREEK Michigan Scour Critical — Countermeasures Installed Poor 1937 197
BEAVER CREEK Michigan Scour Critical — Countermeasures Installed Fair 1973 192
PESHEKEE RIVER Michigan Scour Critical — Countermeasures Installed Fair 1927 188
SOUTH BRANCH BAD RIVER Michigan Scour Critical — Countermeasures Installed Poor 1977 187
NORTH BR CHIPPEWA RIVER Michigan Scour Critical — Countermeasures Installed Fair 1937 185
CONTRIB S BR SALT RIVER Michigan Scour Critical — Countermeasures Installed Poor 1937 185
WHITMORE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1975 185
BAD CREEK Michigan Scour Critical — Countermeasures Installed Poor 1968 183
STONY CREEK Michigan Scour Critical — Countermeasures Installed Poor 1922 183
GRIFFUS CREEK Michigan Scour Critical — Countermeasures Installed Fair 1985 183
MIDDLE BR DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1969 180
HAYWORTH CREEK Michigan Scour Critical — Countermeasures Installed Fair 1924 180
MOORE CREEK Michigan Scour Critical — Countermeasures Installed Poor 1920 180
E BR BIRD CREEK DR Michigan Scour Critical — Countermeasures Installed Fair 1978 180
SOUTH BRANCH BAD RIVER Michigan Scour Critical — Countermeasures Installed Fair 1985 176
MUSKEGON RIVER Michigan Scour Critical — Countermeasures Installed Fair 1982 175
BENJAMIN RUN CREEK Michigan Scour Critical — Countermeasures Installed Fair 1973 174
BLACK RIVER Michigan Scour Critical — Countermeasures Installed Fair 1982 174
PICKEREL CREEK Michigan Scour Critical — Countermeasures Installed Poor 1973 173
SHIAWASSEE RIVER Michigan Scour Critical — Countermeasures Installed Fair 1936 172
LITTLE RIVER RAISIN Michigan Scour Critical — Countermeasures Installed Fair 1979 171
MISTEGUAY CREEK Michigan Scour Critical — Countermeasures Installed Fair 1986 171
GRILL & CONE DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1978 170
FAIRCHILD CREEK Michigan Scour Critical — Countermeasures Installed Poor 1972 165
SHAD CREEK DRAIN Michigan Scour Critical — Countermeasures Installed Good 1980 164
MACON CREEK Michigan Scour Critical — Countermeasures Installed Poor 1965 163
PAINT CREEK Michigan Scour Critical — Countermeasures Installed Fair 1984 163
MUD CREEK Michigan Scour Critical — Countermeasures Installed Fair 1924 161
SPAULDING EXTENSION Michigan Scour Critical — Countermeasures Installed Poor 1924 160
MIDDLE BR CASS RIVER Michigan Scour Critical — Countermeasures Installed Fair 1905 160
NOTTAWA CREEK Michigan Scour Critical — Countermeasures Installed Fair 1920 159
CHRISTIANA CREEK Michigan Scour Critical — Countermeasures Installed Poor 1960 159
MADISON DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1930 158
AUGRES RIVER Michigan Scour Critical — Countermeasures Installed Fair 1988 155
BIG CREEK Michigan Scour Critical — Countermeasures Installed Fair 1984 153
VERMILION CREEK Michigan Scour Critical — Countermeasures Installed Poor 1928 152
RAISIN RIVER Michigan Scour Critical — Countermeasures Installed Poor 1960 151
FORD RIVER Michigan Scour Critical — Countermeasures Installed Fair 1928 150
MIDDLE BR CASS RIVER Michigan Scour Critical — Countermeasures Installed Fair 1907 150
S BRANCH KALAMAZOO RIVER Michigan Scour Critical — Countermeasures Installed Poor 1938 150
BIG CEDAR RIVER Michigan Scour Critical — Countermeasures Installed Fair 1979 150
LS BR PERE MARQUETTE RIV Michigan Scour Critical — Countermeasures Installed Fair 1977 150
MILL CREEK Michigan Scour Critical — Countermeasures Installed Fair 1928 149

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.

All Bridges Poor Condition Historic Bridges Bridge Stats