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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
BUTTERNUT CREEK Michigan Scour Critical — Countermeasures Installed Poor 1937 643
W BR BIG PRESQUE ISLE RV Michigan Scour Critical — Countermeasures Installed Fair 1928 636
PAINT RIVER Michigan Scour Critical — Countermeasures Installed Fair 1959 630
PORTAGE RIVER S BR Michigan Scour Critical — Countermeasures Installed Poor 1939 624
UNCLE HENRY DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1934 622
SOUTH BR HOG CREEK Michigan Scour Critical — Countermeasures Installed Poor 1964 610
NEW RIVER Michigan Scour Critical — Countermeasures Installed Good 1926 610
SMALLDON DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1930 610
PINE RUN Michigan Scour Critical — Countermeasures Installed Fair 1973 608
FLAT RIVER Michigan Scour Critical — Countermeasures Installed Poor 1969 608
PINE RUN Michigan Scour Critical — Countermeasures Installed Poor 1938 596
PRAIRIE CREEK Michigan Scour Critical — Countermeasures Installed Fair 1949 589
ST JOSEPH RIVER Michigan Scour Critical — Countermeasures Installed Poor 1968 580
E BR ST JOSEPH OF MAUMEE Michigan Scour Critical — Countermeasures Installed Poor 1935 579
SAGANING CREEK Michigan Scour Critical — Countermeasures Installed Fair 1938 569
TEN MILE CREEK Michigan Scour Critical — Countermeasures Installed Fair 1960 553
S BR MACATAWA RIVER Michigan Scour Critical — Countermeasures Installed Poor 1978 550
SOUTH BR HOG CREEK Michigan Scour Critical — Countermeasures Installed Fair 1966 550
W BR ST JOSEPH OF MAUMEE Michigan Scour Critical — Countermeasures Installed Fair 1958 546
WHITE CREEK Michigan Scour Critical — Countermeasures Installed Fair 1978 544
SWARTZ CREEK Michigan Scour Critical — Countermeasures Installed Poor 1930 542
LITTLE CEDAR RIVER Michigan Scour Critical — Countermeasures Installed Fair 1963 537
AUGRES RIVER Michigan Scour Critical — Countermeasures Installed Fair 1978 530
S BR STUTTS CREEK Michigan Scour Critical — Countermeasures Installed Fair 1959 526
N BR STUTTS CREEK Michigan Scour Critical — Countermeasures Installed Fair 1960 526
BIG DITCH CREEK Michigan Scour Critical — Countermeasures Installed Fair 1960 526
M BR STUTTS CREEK Michigan Scour Critical — Countermeasures Installed Fair 1959 526
LITTLE WEST RIVER Michigan Scour Critical — Countermeasures Installed Poor 1928 525
SUCKER CREEK Michigan Scour Critical — Countermeasures Installed Fair 1973 520
S BR KALAMAZOO RIVER Michigan Scour Critical — Countermeasures Installed Poor 1947 506
WOLF CREEK Michigan Scour Critical — Countermeasures Installed Fair 1957 500
HOLLY DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1965 500
N BR KAWKAWLIN RIVER Michigan Scour Critical — Countermeasures Installed Poor 1971 493
FRASER-GARFIELD DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1936 486
OTTAWA LAKE DRAIN Michigan Scour Critical — Countermeasures Installed Poor 1900 480
MILL RACE Michigan Scour Critical — Countermeasures Installed Fair 1975 465
PRAIRIE CREEK Michigan Scour Critical — Countermeasures Installed Poor 1927 462
E BR STURGEON RIVER Michigan Scour Critical — Countermeasures Installed Poor 1945 453
BEAR CREEK Michigan Scour Critical — Countermeasures Installed Good 1962 453
BRATON CREEK Michigan Scour Critical — Countermeasures Installed Fair 1931 452
BR 1 SQUAW CK-GILFORD DN Michigan Scour Critical — Countermeasures Installed Good 1980 450
MISTEGUAY CREEK Michigan Scour Critical — Countermeasures Installed Fair 1972 445
N BR OF TOBACCO R Michigan Scour Critical — Countermeasures Installed Fair 1968 440
NOTTAWASSEPEE CREEK Michigan Scour Critical — Countermeasures Installed Poor 1919 439
BATTEESE CREEK Michigan Scour Critical — Countermeasures Installed Fair 1934 429
BRENT RUN Michigan Scour Critical — Countermeasures Installed Fair 1930 426
E BRANCH OF AUGRES RIVER Michigan Scour Critical — Countermeasures Installed Fair 1982 420
CRANBERRY CREEK Michigan Scour Critical — Countermeasures Installed Good 1955 420
HOWELL-OSCEOLA DRAIN Michigan Scour Critical — Countermeasures Installed Fair 1921 420
E BR STURGEON RIVER Michigan Scour Critical — Countermeasures Installed Poor 1927 406

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