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
LAURAMIE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1925 1,244
LEATHERWOOD CREEK Indiana Scour Critical — Countermeasures Installed Fair 1947 1,218
LITTLE CEDAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1988 1,213
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Fair 2001 1,209
GRIMES Ditch Indiana Scour Critical — Countermeasures Installed Poor 1979 1,207
WEST FORK TURMAN CREEK Indiana Scour Critical — Countermeasures Installed Poor 1936 1,188
EAST FORK TURMAN CREEK Indiana Scour Critical — Countermeasures Installed Poor 1936 1,188
ST JOSEPH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1960 1,188
BIG CAMP CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 1,173
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Good 1972 1,160
BLUE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1937 1,151
BR LITTLE RACCOON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 1,149
PLACE DITCH Indiana Scour Critical — Countermeasures Installed Fair 1993 1,137
SALAMONIE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1965 1,125
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 1984 1,115
SALAMONIE RIVER Indiana Scour Critical — Countermeasures Installed Good 1900 1,103
ST MARYS RIVER Indiana Scour Critical — Countermeasures Installed Fair 1963 1,099
BRANCH LITTLE PIGEON CR Indiana Scour Critical — Countermeasures Installed Fair 1930 1,086
NORTH FORK CLIFTY CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 1,069
STITES DITCH Indiana Scour Critical — Countermeasures Installed Poor 1950 1,042
IROQUOIS RIVER Indiana Scour Critical — Countermeasures Installed Fair 1965 1,037
UNNAMED DITCH Indiana Scour Critical — Countermeasures Installed Poor 1930 1,020
MITCHELL BR INDIAN CREEK Indiana Scour Critical — Countermeasures Installed Fair 1984 1,010
PATOKA RIVER Indiana Scour Critical — Countermeasures Installed Good 1993 1,010
KENT DITCH Indiana Scour Critical — Countermeasures Installed Fair 2001 1,004
BIG BLUE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1950 1,000
MAUMEE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1985 1,000
TIPPECANOE RIVER Indiana Scour Critical — Countermeasures Installed Good 1977 1,000
WHITE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1986 1,000
WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1920 972
GARRISON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1965 968
MUD PINE CREEK Indiana Scour Critical — Countermeasures Installed Poor 1933 950
COAL RUN CREEK Indiana Scour Critical — Countermeasures Installed Fair 1936 940
SPRING Creek Indiana Scour Critical — Countermeasures Installed Poor 1941 908
WILLIAMS Creek Indiana Scour Critical — Countermeasures Installed Fair 1940 904
WHITE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1974 900
HERRIOTTS CREEK Indiana Scour Critical — Countermeasures Installed Fair 1946 900
DEVON CREEK Indiana Scour Critical — Countermeasures Installed Poor 1962 897
TIPPECANOE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1970 890
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Fair 1974 890
ARNOLD CREEK Indiana Scour Critical — Countermeasures Installed Poor 1967 879
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Poor 1965 875
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Good 1984 875
BRANCH OF W FORK MILL CR Indiana Scour Critical — Countermeasures Installed Poor 1935 875
KENT DITCH Indiana Scour Critical — Countermeasures Installed Fair 1930 861
BRANCH OF MILLS CREEK Indiana Scour Critical — Countermeasures Installed Poor 1940 860
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Poor 1975 860
WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1984 815
LITTLE SHAWNEE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1956 808
BRUSH FORK TANNERS CREEK Indiana Scour Critical — Countermeasures Installed Fair 1987 800

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.