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.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| WHITE LICK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1990 | 1,875 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1991 | 1,850 |
| ABANDONED RR COAL CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1936 | 1,840 |
| TIPPECANOE RIVER | Indiana | Scour Critical — Countermeasures Installed | Good | 1958 | 1,813 |
| MAJENICA CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1965 | 1,810 |
| HARTMAN DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1978 | 1,805 |
| WILDCAT CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1958 | 1,800 |
| HANNAH CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1937 | 1,791 |
| STAMPERS CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1933 | 1,778 |
| BREWER DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1930 | 1,772 |
| BLACK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1995 | 1,748 |
| DERBYSHIRE CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1935 | 1,716 |
| MISSISSINEWA RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1958 | 1,707 |
| COLES CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1967 | 1,705 |
| MUSCATATUCK RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1954 | 1,691 |
| WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1985 | 1,680 |
| WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Poor | 1930 | 1,650 |
| BROUILLETTS CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1932 | 1,645 |
| TIPPECANOE RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1964 | 1,629 |
| SILVER CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1987 | 1,628 |
| GRASSY FORK | Indiana | Scour Critical — Countermeasures Installed | Good | 1933 | 1,619 |
| SOUTH FORK BUCK CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1966 | 1,607 |
| PIGEON ROOST CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1935 | 1,593 |
| MISSISSINEWA RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1957 | 1,580 |
| LOUIS DITCH | Indiana | Scour Critical — Countermeasures Installed | Good | 1986 | 1,573 |
| GRASSY FORK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1952 | 1,561 |
| HALL Creek | Indiana | Scour Critical — Countermeasures Installed | Fair | 1961 | 1,548 |
| SLUSH RUN | Indiana | Scour Critical — Countermeasures Installed | Good | 1956 | 1,536 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1970 | 1,520 |
| WABASH RIVER OVERFLOW | Indiana | Scour Critical — Countermeasures Installed | Good | 1994 | 1,510 |
| PLUNGE CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1987 | 1,494 |
| EEL RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1976 | 1,487 |
| RICHLAND CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1965 | 1,486 |
| HONEY CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1933 | 1,481 |
| MISSISSINEWA RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1984 | 1,470 |
| WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1984 | 1,452 |
| EAST FORK SCHOEN CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1906 | 1,451 |
| MILL RACE | Indiana | Scour Critical — Countermeasures Installed | Fair | 1993 | 1,420 |
| PIGEON RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1993 | 1,420 |
| CABIN CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1989 | 1,419 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 2018 | 1,390 |
| BRANCH OF EEL RIVER | Indiana | Scour Critical — Countermeasures Installed | Good | 1991 | 1,377 |
| ELKHORN CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1992 | 1,359 |
| HARP DITCH #2 | Indiana | Scour Critical — Countermeasures Installed | Fair | 1950 | 1,355 |
| LITTLE SALT CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1974 | 1,330 |
| BACHELOR RUN | Indiana | Scour Critical — Countermeasures Installed | Fair | 1966 | 1,326 |
| WISE DITCH | Indiana | Scour Critical — Countermeasures Installed | Good | 1991 | 1,324 |
| GREENVILLE CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1968 | 1,293 |
| FLATROCK RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1913 | 1,280 |
| ST JOSEPH RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1968 | 1,249 |
Scour Critical Rating Codes
| Code 2 — Unaddressed | Bridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken. |
| Code 3 — Countermeasures Installed | Protective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical. |
| Code 6 — Countermeasures Ineffective | Protective 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.