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
CARROLL DITCH Indiana Scour Critical — Countermeasures Installed Fair 1987 798
MIDDLE FORK CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 788
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1979 772
WABASH RIVER Indiana Scour Critical — Countermeasures Installed Poor 1906 750
LITTLE WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1962 750
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Poor 1978 712
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 1968 710
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Fair 1965 700
GRASSY FORK CREEK Indiana Scour Critical — Countermeasures Installed Good 1966 680
DAVIS BRANCH Indiana Scour Critical — Countermeasures Installed Fair 1968 674
W FORK BIG WALNUT CREEK Indiana Scour Critical — Countermeasures Installed Fair 1937 670
IROQUOIS RIVER Indiana Scour Critical — Countermeasures Installed Fair 1985 661
LOST RIVER Indiana Scour Critical — Countermeasures Installed Poor 1964 654
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Fair 1935 650
DEER CREEK Indiana Scour Critical — Countermeasures Installed Poor 1970 647
TIPTON CREEK Indiana Scour Critical — Countermeasures Installed Good 1991 645
LITTLE WABASH RIVER Indiana Scour Critical — Countermeasures Installed Fair 1995 643
BRANCH KRAUS CREEK Indiana Scour Critical — Countermeasures Installed Fair 1984 633
HAYWORTH SLOUGH Indiana Scour Critical — Countermeasures Installed Fair 1925 629
BR OF W FK WHITE LICK CR Indiana Scour Critical — Countermeasures Installed Fair 1935 600
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Poor 1902 600
WHITE RIVER Indiana Scour Critical — Countermeasures Installed Fair 1965 590
MIDDLE FK BIG WALNUT CR Indiana Scour Critical — Countermeasures Installed Fair 1972 582
WADDLE BRANCH Indiana Scour Critical — Countermeasures Installed Fair 1968 571
IROQUOIS RIVER Indiana Scour Critical — Countermeasures Installed Fair 1979 555
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1987 550
SALT FORK TANNERS CREEK Indiana Scour Critical — Countermeasures Installed Poor 1990 550
SALT FORK TANNERS CREEK Indiana Scour Critical — Countermeasures Installed Poor 1950 550
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 1989 550
SWAMP CREEK Indiana Scour Critical — Countermeasures Installed Fair 1938 544
ROCK CREEK Indiana Scour Critical — Countermeasures Installed Fair 1966 539
BIG RACCOON Creek Indiana Scour Critical — Countermeasures Installed Fair 1961 536
Branch of Big RACCOON Cr Indiana Scour Critical — Countermeasures Installed Poor 1958 536
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Poor 1970 530
LITTLE RACCOON CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 529
YELLOW RIVER Indiana Scour Critical — Countermeasures Installed Fair 1980 527
LEUCK DITCH Indiana Scour Critical — Countermeasures Installed Fair 1947 490
EEL RIVER Indiana Scour Critical — Countermeasures Installed Fair 1872 480
CUP CREEK Indiana Scour Critical — Countermeasures Installed Fair 1968 480
Branch of ROARING Creek Indiana Scour Critical — Countermeasures Installed Poor 1970 471
JONATHAN CREEK Indiana Scour Critical — Countermeasures Installed Fair 1950 467
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Good 2012 460
RIFE CREEK Indiana Scour Critical — Countermeasures Installed Fair 1960 451
SUGAR CREEK Indiana Scour Critical — Countermeasures Installed Fair 1975 450
RAMP RUN Indiana Scour Critical — Countermeasures Installed Fair 1935 450
FLATROCK RIVER Indiana Scour Critical — Countermeasures Installed Fair 1900 444
MISSISSINEWA RIVER Indiana Scour Critical — Countermeasures Installed Good 1993 440
MAIDEN RUN Indiana Scour Critical — Countermeasures Installed Poor 1920 430
BRANCH OF WHITE LICK CR Indiana Scour Critical — Countermeasures Installed Fair 1920 425
W FORK OF BIG WALNUT CR Indiana Scour Critical — Countermeasures Installed Fair 1935 425

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.