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 |
|---|---|---|---|---|---|
| DEANS BRANCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1946 | 143 |
| LITTLE CROOKED CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1947 | 143 |
| MUSCATATUCK RIVER | Indiana | Scour Critical — Countermeasures Installed | Poor | 1910 | 143 |
| GOOSE CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1920 | 143 |
| NINEVEH CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1885 | 143 |
| BRANCH OF LAUGHERY CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1935 | 140 |
| SULPHUR CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1925 | 140 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 2017 | 140 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1994 | 137 |
| BR FALL FORK CLIFTY CREE | Indiana | Scour Critical — Countermeasures Installed | Fair | 1885 | 130 |
| GRASSY FORK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 2000 | 130 |
| GRASSY FORK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 2000 | 130 |
| INDIAN CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1940 | 130 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1925 | 130 |
| RAMP CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1920 | 130 |
| BRANCH OF LEATHERMAN CR | Indiana | Scour Critical — Countermeasures Installed | Poor | 1930 | 130 |
| Branch of ROCKY FK Creek | Indiana | Scour Critical — Countermeasures Installed | Fair | 1941 | 129 |
| BRANCH OF NEWMAN LATERAL | Indiana | Scour Critical — Countermeasures Installed | Fair | 1983 | 125 |
| FINCH BRANCH | Indiana | Scour Critical — Countermeasures Installed | Poor | 1910 | 125 |
| BRUSHY FORK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1910 | 125 |
| WATKINS CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1914 | 125 |
| BR E LITTLE SUGAR CR | Indiana | Scour Critical — Countermeasures Installed | Fair | 1950 | 125 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1996 | 120 |
| BIG RACCOON CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1999 | 120 |
| TOOLIE DRAIN | Indiana | Scour Critical — Countermeasures Installed | Fair | 1993 | 120 |
| PATOKA RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1887 | 120 |
| Little Creek | Indiana | Scour Critical — Countermeasures Installed | Poor | 1976 | 119 |
| PENIEL RUN | Indiana | Scour Critical — Countermeasures Installed | Poor | 1935 | 119 |
| Van Buren Creek | Indiana | Scour Critical — Countermeasures Installed | Poor | 1920 | 119 |
| Muddy Branch | Indiana | Scour Critical — Countermeasures Installed | Fair | 1940 | 119 |
| Branch of Jordan Creek | Indiana | Scour Critical — Countermeasures Installed | Fair | 1980 | 119 |
| ALTAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1935 | 119 |
| RUSH Creek | Indiana | Scour Critical — Countermeasures Installed | Fair | 1904 | 119 |
| COAL BRANCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1970 | 117 |
| NORTON Creek | Indiana | Scour Critical — Countermeasures Installed | Poor | 1930 | 117 |
| SUNDERLAND Branch | Indiana | Scour Critical — Countermeasures Installed | Fair | 1921 | 112 |
| BRANCH OF POND FLAT DIT | Indiana | Scour Critical — Countermeasures Installed | Poor | 1945 | 111 |
| BIG RACCOON CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1983 | 110 |
| GRASSY FORK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1959 | 110 |
| GRASSY FORK CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 2002 | 110 |
| GRASSY FORK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1932 | 110 |
| BIG BRANCH CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1910 | 110 |
| SNAPP CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1986 | 110 |
| BRANCH CLEAR POND DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1920 | 110 |
| BRANCH OF BRUSH CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1930 | 110 |
| CLEAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1915 | 110 |
| SALLUST BRANCH CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1940 | 110 |
| SALLUST BRANCH CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1920 | 110 |
| EAST FORK OF WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Poor | 1894 | 107 |
| N Branch OTTER Creek | Indiana | Scour Critical — Countermeasures Installed | Poor | 1900 | 103 |
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.