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Scour Critical Bridges in Indiana

756 bridges in Indiana 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 756 bridges in Indiana have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Fair 1877 240
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1976 240
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1887 240
BIG BLUE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1916 240
BRANCH OF SALT CREEK Indiana Scour Critical — Countermeasures Installed Good 1976 240
BIG RACCOON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1960 230
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Fair 1886 225
MUTTON CREEK Indiana Scour Critical — Countermeasures Installed Poor 1910 225
SIMONTON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1963 220
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 2013 220
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Poor 1965 220
BRANCH BUCKHORN CREEK Indiana Scour Critical — Countermeasures Installed Good 1932 214
BRANCH BIG RACCOON CR Indiana Scour Critical — Countermeasures Installed Poor 1920 213
WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1913 210
FORK OF TUB CREEK Indiana Scour Critical — Countermeasures Installed Fair 1935 210
SALAMONIE RIVER OVERFLOW Indiana Scour Critical — Countermeasures Installed Fair 1979 210
SALAMONIE RIVER Indiana Scour Critical — Countermeasures Installed Good 1979 210
LITTLE WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1996 210
BRANCH OF BACK CREEK Indiana Scour Critical — Countermeasures Installed Fair 1988 209
BRANCH LITTLE SALT CREEK Indiana Scour Critical — Countermeasures Installed Good 2011 208
W FORK BIG WALNUT CREEK Indiana Scour Critical — Countermeasures Installed Poor 1980 200
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Fair 1984 200
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Good 1989 200
BIG PRAIRIE DITCH Indiana Scour Critical — Countermeasures Installed Poor 1930 200
BRANCH OF N. RAMP CREEK Indiana Scour Critical — Countermeasures Installed Poor 1935 200
LITTLE PIPE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1975 200
BRANCH OF SPRING CREEK Indiana Scour Critical — Countermeasures Installed Fair 1991 198
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Fair 1926 190
BRANCH OF BUSSERON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1930 190
BRANCH OF BUSSERON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1930 190
BUSSERON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1919 188
TURMAN CREEK Indiana Scour Critical — Countermeasures Installed Poor 1920 188
TURMAN CREEK Indiana Scour Critical — Countermeasures Installed Poor 1915 188
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Good 1992 180
JONES CREEK Indiana Scour Critical — Countermeasures Installed Poor 1925 180
CROYS Creek Indiana Scour Critical — Countermeasures Installed Poor 1935 179
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Good 2023 178
BRANCH W FORK TURMAN CRK Indiana Scour Critical — Countermeasures Installed Fair 1970 170
S Fork Little RACCOON Cr Indiana Scour Critical — Countermeasures Installed Poor 1990 170
BRANCH OF SNAPP CREEK Indiana Scour Critical — Countermeasures Installed Fair 1960 170
DEER CREEK Indiana Scour Critical — Countermeasures Installed Poor 1976 160
SALAMONIE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1928 157
VAN BUREN CREEK Indiana Scour Critical — Countermeasures Installed Poor 1930 150
CROYS CREEK Indiana Scour Critical — Countermeasures Installed Poor 1930 150
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Fair 1916 150
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Poor 1877 150
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1975 150
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1975 150
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Good 1997 150
DEANS BRANCH Indiana Scour Critical — Countermeasures Installed Fair 1946 143

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