Scour Critical Bridges in Vermont
242 bridges in Vermont 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 242 bridges in Vermont have been identified as vulnerable to scour damage.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| LITTLE NOTCH BROOK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1919 | 20 |
| LITTLE OTTER CREEK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1919 | 20 |
| SOUTH PEACHAM BROOK | Vermont | Scour Critical — Countermeasures Installed | Poor | 1974 | 20 |
| JOINER BROOK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1919 | 20 |
| LITTLE RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1978 | 20 |
| 3RD BRANCH WHITE R. | Vermont | Scour Critical — Countermeasures Installed | Good | 1971 | 20 |
| W. BR. OMPOMPANOOSUC R. | Vermont | Scour Critical — Countermeasures Installed | Fair | 1991 | 20 |
| BULL CREEK | Vermont | Scour Critical — Countermeasures Installed | Poor | 1900 | 20 |
| EAST PUTNEY BROOK | Vermont | Scour Critical — Countermeasures Installed | Poor | 1930 | 20 |
| LOCUST CREEK | Vermont | Scour Critical — Countermeasures Installed | Good | 1974 | 20 |
| GILEAD BROOK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1974 | 20 |
| N. BR. OTTAUQUECHEE R. | Vermont | Scour Critical — Countermeasures Installed | Good | 1997 | 20 |
| N. BR OTTAUQUECHEE R | Vermont | Scour Critical — Countermeasures Installed | Good | 1974 | 20 |
| BROAD BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1974 | 20 |
| WILLIAMS RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1940 | 20 |
| JEWELL BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1919 | 20 |
| PINNEY HOLLOW BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1974 | 20 |
| 1ST BRANCH WHITE R. | Vermont | Scour Critical — Countermeasures Installed | Poor | 1919 | 20 |
| BRUSH BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 2023 | 15 |
| JENNY COOLIDGE BROOK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1935 | 15 |
| LEWIS CREEK | Vermont | Scour Critical — Countermeasures Installed | Good | 1952 | 10 |
| W. BR. DEERFIELD RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1929 | 10 |
| LAMOILLE RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1950 | 10 |
| NATION BROOK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1974 | 10 |
| COBB BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1914 | 10 |
| LEE RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1914 | 10 |
| CUTLER MILL BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1975 | 10 |
| HALLS BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1919 | 10 |
| BLACK RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1946 | 10 |
| POTTER BROOK | Vermont | Scour Critical — Countermeasures Installed | Fair | 1958 | 10 |
| WINOOSKI RIVER | Vermont | Scour Critical — Countermeasures Installed | Good | 1960 | 10 |
| MID. BR WILLIAMS RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1974 | 10 |
| LOCUST CREEK | Vermont | Scour Critical — Countermeasures Installed | Poor | 1977 | 10 |
| LOCUST CREEK | Vermont | Scour Critical — Countermeasures Installed | Poor | 1987 | 10 |
| GILEAD BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1974 | 10 |
| COLD BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1976 | 10 |
| N. BR. OTTAUQUECHEE R. | Vermont | Scour Critical — Countermeasures Installed | Good | 1973 | 10 |
| BROAD BROOK | Vermont | Scour Critical — Countermeasures Installed | Poor | 1933 | 10 |
| GREENDALE BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1940 | 10 |
| MILLER RUN | Vermont | Scour Critical — Countermeasures Installed | Poor | 1928 | 5 |
| BROOK | Vermont | Scour Critical — Countermeasures Installed | Good | 1974 | 5 |
| OMPOMPANOOSUC RIVER | Vermont | Scour Critical — Countermeasures Installed | Fair | 1925 | 2 |
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.