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 |
|---|---|---|---|---|---|
| BUSSERON CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1932 | 5,399 |
| MUNCIE CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1973 | 5,393 |
| LONGS BRANCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1954 | 5,376 |
| BRANCH MILL CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1932 | 5,336 |
| BROOKS CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1993 | 5,328 |
| YOUNGS CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1946 | 5,321 |
| YOUNGS CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1946 | 5,263 |
| DAYS CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1992 | 5,105 |
| POTATO CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1973 | 5,055 |
| MUNCIE CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1973 | 5,026 |
| CICERO CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1986 | 5,008 |
| ST JOSEPH RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1984 | 5,000 |
| WABASH RIVER | Indiana | Scour Critical — Countermeasures Installed | Good | 1975 | 4,878 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1932 | 4,852 |
| SHAKER RUN | Indiana | Scour Critical — Countermeasures Installed | Fair | 1953 | 4,850 |
| PIPE CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1935 | 4,839 |
| CLIFTY CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1983 | 4,809 |
| COBB DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1952 | 4,768 |
| SHEETS CREEK | Indiana | Scour Critical — Countermeasures Installed | Poor | 1935 | 4,697 |
| MISSISSINEWA RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1983 | 4,641 |
| LITTLE INDIAN CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1990 | 4,610 |
| EAST FORK WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1994 | 4,600 |
| CENTRAL CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1941 | 4,598 |
| CARPENTER CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1929 | 4,557 |
| KENTNER CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1975 | 4,519 |
| KENTNER CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1975 | 4,519 |
| SUGAR CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1965 | 4,510 |
| HOGGATT BRANCH | Indiana | Scour Critical — Countermeasures Installed | Good | 2004 | 4,473 |
| TIPPECANOE RIVER | Indiana | Scour Critical — Countermeasures Installed | Good | 1952 | 4,468 |
| E FK WHITE RIVER OVFL | Indiana | Scour Critical — Countermeasures Installed | Fair | 1981 | 4,454 |
| LITTLE WABASH RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1960 | 4,449 |
| EAST FORK WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Good | 1970 | 4,426 |
| LITTLE WABASH RIVER | Indiana | Scour Critical — Countermeasures Installed | Poor | 1950 | 4,288 |
| ROBINSON BRANCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1949 | 4,275 |
| WHITE RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1974 | 4,260 |
| MILLERS BRANCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1931 | 4,256 |
| SILVER CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1933 | 4,248 |
| MUD CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1981 | 4,240 |
| YELLOW RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1964 | 4,219 |
| WHITEWATER RIVER | Indiana | Scour Critical — Countermeasures Installed | Poor | 1937 | 4,142 |
| BR MUTTON CREEK DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1923 | 4,119 |
| DRIFTWOOD RIVER | Indiana | Scour Critical — Countermeasures Installed | Fair | 1959 | 4,080 |
| REEVES DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1996 | 4,070 |
| I-465 WB LICK CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1962 | 4,028 |
| SILVER CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1937 | 4,014 |
| REDWOOD CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1976 | 4,014 |
| REDWOOD CREEK | Indiana | Scour Critical — Countermeasures Installed | Fair | 1976 | 4,014 |
| SANDY HOOK DITCH | Indiana | Scour Critical — Countermeasures Installed | Fair | 1952 | 3,957 |
| DEER CREEK | Indiana | Scour Critical — Countermeasures Installed | Good | 1987 | 3,955 |
| FALL BRANCH | Indiana | Scour Critical — Countermeasures Installed | Good | 1991 | 3,935 |
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.