Scour Critical Bridges in Alabama
450 bridges in Alabama 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 450 bridges in Alabama have been identified as vulnerable to scour damage.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| SANDY CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1961 | 67 |
| WALNUT CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1934 | 65 |
| SIZEMORE CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1940 | 65 |
| BLACK OAK CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1935 | 61 |
| BIG COON CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1939 | 56 |
| REDDOCK CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1959 | 55 |
| MCNAIR CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1967 | 55 |
| BOGUE CHITTA CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 2005 | 51 |
| TRIB. TO GREER CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1955 | 50 |
| BEAVER CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1973 | 50 |
| WELLS BRANCH | Alabama | Scour Critical — Countermeasures Installed | Fair | 1990 | 50 |
| FLAT CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1938 | 50 |
| PADGETT BRANCH | Alabama | Scour Critical — Countermeasures Installed | Good | 1993 | 50 |
| SURVEYORS CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1978 | 50 |
| TRIBUTARY TO CANE CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1960 | 50 |
| BLACKS CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 1995 | 48 |
| NANCES CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1960 | 48 |
| MULBERRY CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1952 | 45 |
| TRIB. TO BIG PRARIE CRK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1950 | 40 |
| PAINT ROCK RIVER | Alabama | Scour Critical — Countermeasures Installed | Fair | 1975 | 40 |
| JUDY CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 2003 | 40 |
| UT-FAULK MILL CK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1996 | 39 |
| SILAS MILL CREEK E PRONG | Alabama | Scour Critical — Countermeasures Installed | Fair | 1966 | 35 |
| POLECAT CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 1989 | 35 |
| CHIKASANOXEE CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1929 | 30 |
| CANE CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1960 | 30 |
| DRY CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1971 | 30 |
| INDIAN CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1996 | 30 |
| PAINT ROCK RIVER | Alabama | Scour Critical — Countermeasures Installed | Fair | 1975 | 28 |
| UNNAMED CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 1990 | 26 |
| ROCKY BRANCH | Alabama | Scour Critical — Countermeasures Installed | Fair | 1991 | 25 |
| PANTHER CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 1992 | 25 |
| LITTLE CHATAHOSPEE CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 2005 | 23 |
| LITTLE CHATAHOSPEE CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 2005 | 23 |
| SANDY CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1920 | 20 |
| BRENSON BRANCH | Alabama | Scour Critical — Countermeasures Installed | Fair | 1968 | 20 |
| BREASTWORK CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1976 | 20 |
| BRANCH | Alabama | Scour Critical — Countermeasures Installed | Fair | 1990 | 20 |
| HOLLY MILL CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 2009 | 20 |
| Branch | Alabama | Scour Critical — Countermeasures Installed | Fair | 2009 | 20 |
| Branch | Alabama | Scour Critical — Countermeasures Installed | Good | 2009 | 20 |
| WEOKA CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1979 | 15 |
| TAN TROUGH CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1990 | 15 |
| Unamed Branch | Alabama | Scour Critical — Countermeasures Installed | Fair | 1800 | 15 |
| UNNAMED CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 1995 | 15 |
| TUMPKAHATCHEE CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1987 | 10 |
| PARKER CREEK | Alabama | Scour Critical — Countermeasures Installed | Good | 1997 | 10 |
| BIG WILLS CREEK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1970 | 10 |
| Jernigan Mill CRK | Alabama | Scour Critical — Countermeasures Installed | Fair | 1800 | 10 |
| WELLS CREEK | Alabama | Scour Critical — Countermeasures Installed | Poor | 1935 | 7 |
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.