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
BRANCH OF WHITE LICK CR Indiana Scour Critical — Countermeasures Installed Fair 1920 425
LIMESTONE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1950 420
BEAR RUN CREEK Indiana Scour Critical — Countermeasures Installed Fair 1970 420
BRANCH WABASH RIVER Indiana Scour Critical — Countermeasures Installed Good 1995 420
COFFEE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 418
IROQUOIS RIVER Indiana Scour Critical — Countermeasures Installed Fair 1967 416
BRUSHY CREEK Indiana Scour Critical — Countermeasures Installed Good 2010 411
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 1994 410
FEATHER Creek Indiana Scour Critical — Countermeasures Installed Fair 1988 405
FRENCH LICK CREEK Indiana Scour Critical — Countermeasures Installed Fair 1986 400
SUGAR MILL CREEK Indiana Scour Critical — Countermeasures Installed Good 1992 395
MUD LICK CREEK Indiana Scour Critical — Countermeasures Installed Fair 1985 390
GUNDY DITCH Indiana Scour Critical — Countermeasures Installed Fair 1930 385
TIPPECANOE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1966 380
LITTLE WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1965 375
PATOKA RIVER Indiana Scour Critical — Countermeasures Installed Poor 1973 370
GRASSY FORK CREEK Indiana Scour Critical — Countermeasures Installed Fair 1995 370
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Poor 1911 360
BIG RACCOON CREEK Indiana Scour Critical — Countermeasures Installed Good 2007 350
LOG CREEK Indiana Scour Critical — Countermeasures Installed Poor 1960 350
WABASH RIVER Indiana Scour Critical — Countermeasures Installed Good 1993 348
LITTLE WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1915 341
BRANCH W FORK TANNERS CR Indiana Scour Critical — Countermeasures Installed Poor 1910 330
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1960 330
STOKER DITCH Indiana Scour Critical — Countermeasures Installed Poor 1966 329
N Branch OTTER Creek Indiana Scour Critical — Countermeasures Installed Fair 1930 327
BRANCH OF SHAWNEE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 325
CLEAR CREEK Indiana Scour Critical — Countermeasures Installed Poor 1919 322
WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1987 320
CLEAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1920 315
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1986 310
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1955 310
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1965 300
BRANCH PRAIRIE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 292
WHITE RIVER Indiana Scour Critical — Countermeasures Installed Good 1902 280
LITTLE WALNUT CREEK Indiana Scour Critical — Countermeasures Installed Poor 1935 280
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 1989 260
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1982 260
WAPALO Creek Indiana Scour Critical — Countermeasures Installed Fair 1920 252
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Fair 1970 250
UPPER LIMESTONE CREEK Indiana Scour Critical — Countermeasures Installed Poor 1935 250
HIGGINS BRANCH CREEK Indiana Scour Critical — Countermeasures Installed Poor 1915 250
LOST CREEK Indiana Scour Critical — Countermeasures Installed Fair 1929 249
FEATHER CREEK Indiana Scour Critical — Countermeasures Installed Poor 1982 249
West Fork of RUSH Creek Indiana Scour Critical — Countermeasures Installed Fair 1960 249
POTATO Creek Indiana Scour Critical — Countermeasures Installed Fair 1903 246
KLINE Ditch Indiana Scour Critical — Countermeasures Installed Poor 1935 242
TIPPECANOE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1964 240
TIPPECANOE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1973 240
LONG BRANCH Indiana Scour Critical — Countermeasures Installed Fair 1980 240

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.