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.

Clear
Bridge State Scour Status Condition Year Built ADT
BROOK Vermont Scour Critical — Countermeasures Installed Fair 1928 250
MUD BROOK Vermont Scour Critical — Countermeasures Installed Fair 1929 250
MUD BROOK Vermont Scour Critical — Countermeasures Installed Poor 1940 250
WILLIAMS RIVER Vermont Scour Critical — Countermeasures Installed Fair 1919 250
COX BROOK Vermont Scour Critical — Countermeasures Installed Fair 1919 250
HALLS STREAM Vermont Scour Critical — Countermeasures Installed Fair 1931 240
LITTLE OTTER CREEK Vermont Scour Critical — Countermeasures Installed Fair 1967 200
NEW HAVEN RIVER Vermont Scour Critical — Countermeasures Installed Fair 1927 200
MIDDLEBURY RIVER Vermont Scour Critical — Countermeasures Installed Fair 1936 200
SO. PEACHAM BROOK Vermont Scour Critical — Countermeasures Installed Fair 1948 200
JENKINS BROOK Vermont Scour Critical — Countermeasures Installed Fair 1931 200
FIRST BRANCH WHITE R. Vermont Scour Critical — Countermeasures Installed Fair 1921 200
PEACH BROOK Vermont Scour Critical — Countermeasures Installed Fair 1953 200
ABBOTT BROOK Vermont Scour Critical — Countermeasures Installed Fair 1919 200
WAITS RIVER Vermont Scour Critical — Countermeasures Installed Good 1919 200
RIDLEY BROOK Vermont Scour Critical — Countermeasures Installed Poor 1967 200
UNION BROOK Vermont Scour Critical — Countermeasures Installed Fair 1949 200
BLACK RIVER Vermont Scour Critical — Countermeasures Installed Good 1980 165
CALENDAR BROOK Vermont Scour Critical — Countermeasures Installed Poor 1926 150
STANNARD BROOK Vermont Scour Critical — Countermeasures Installed Good 1963 150
SCOTT BROOK Vermont Scour Critical — Countermeasures Installed Good 1928 150
HALLS BROOK Vermont Scour Critical — Countermeasures Installed Good 1976 150
THAYER BROOK Vermont Scour Critical — Countermeasures Installed Fair 1928 150
RUSSELL BROOK Vermont Scour Critical — Countermeasures Installed Fair 1939 150
FREEMAN BROOK Vermont Scour Critical — Countermeasures Installed Good 1973 150
SARGENT BROOK Vermont Scour Critical — Countermeasures Installed Good 1974 150
UNION BROOK Vermont Scour Critical — Countermeasures Installed Poor 1970 150
ANDOVER BROOK Vermont Scour Critical — Countermeasures Installed Fair 1962 150
MILL BROOK Vermont Scour Critical — Countermeasures Installed Fair 1947 150
BALL MTN. BROOK Vermont Scour Critical — Countermeasures Installed Good 1982 140
STEVENS RIVER Vermont Scour Critical — Countermeasures Installed Poor 1919 125
BROAD BROOK Vermont Scour Critical — Countermeasures Installed Fair 1929 125
E.BR.DEAD CREEK Vermont Scour Critical — Countermeasures Installed Fair 1949 100
HANCOCK BR. WHITE R. Vermont Scour Critical — Countermeasures Installed Good 1935 100
MIDDLEBURY RIVER Vermont Scour Critical — Countermeasures Installed Good 1972 100
PEACHAM HOLLOW BROOK Vermont Scour Critical — Countermeasures Installed Fair 1928 100
ROUNDY BROOK Vermont Scour Critical — Countermeasures Installed Fair 1928 100
WINHALL RIVER Vermont Scour Critical — Countermeasures Installed Fair 1928 100
MOOSE RIVER Vermont Scour Critical — Countermeasures Installed Fair 1940 100
BLACK CREEK Vermont Scour Critical — Countermeasures Installed Poor 1903 100
MOSS GLEN BROOK Vermont Scour Critical — Countermeasures Installed Fair 1982 100
HALLS BROOK Vermont Scour Critical — Countermeasures Installed Fair 1929 100
SNOWS BROOK Vermont Scour Critical — Countermeasures Installed Good 1923 100
THAYER BROOK Vermont Scour Critical — Countermeasures Installed Fair 1928 100
CORPORATION BROOK Vermont Scour Critical — Countermeasures Installed Fair 1930 100
BEAVER BROOK Vermont Scour Critical — Countermeasures Installed Fair 1954 100
MILL BROOK Vermont Scour Critical — Countermeasures Installed Good 1895 100
CHASE BROOK Vermont Scour Critical — Countermeasures Installed Good 1978 100
GILEAD BROOK Vermont Scour Critical — Countermeasures Installed Good 1989 84
COOK BROOK Vermont Scour Critical — Countermeasures Installed Fair 1931 80

Scour Critical Rating Codes

Code 2 — UnaddressedBridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures InstalledProtective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures IneffectiveProtective 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.