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 |
|---|---|---|---|---|---|
| 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 — 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.