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
NO. BR. HOOSIC RIVER Vermont Scour Critical — Countermeasures Installed Fair 1963 1,000
NO. BR. HOOSIC RIVER Vermont Scour Critical — Countermeasures Installed Good 1963 1,000
STANHOPE BROOK Vermont Scour Critical — Countermeasures Installed Fair 1930 1,000
CONNECTICUT RIVER Vermont Scour Critical — Countermeasures Installed Fair 1947 981
BOURN BROOK Vermont Scour Critical — Countermeasures Installed Fair 1929 960
LAMOILLE RIVER Vermont Scour Critical — Countermeasures Installed Good 1997 915
LAKE LAMOILLE Vermont Scour Critical — Countermeasures Installed Fair 1977 860
COLD BROOK Vermont Scour Critical — Countermeasures Installed Fair 1967 850
MILL BROOK Vermont Scour Critical — Countermeasures Installed Fair 1939 850
SAXTONS RIVER Vermont Scour Critical — Countermeasures Installed Fair 1937 810
EAST BR.PASSUMPSIC RIVER Vermont Scour Critical — Countermeasures Installed Fair 1951 800
WALLOOMSAC RIVER Vermont Scour Critical — Countermeasures Installed Good 1975 780
COBB BROOK Vermont Scour Critical — Countermeasures Installed Fair 1976 780
LAMOILLE RIVER Vermont Scour Critical — Countermeasures Installed Poor 1924 750
LAMOILLE RIVER Vermont Scour Critical — Countermeasures Installed Fair 1965 750
MORRILL BROOK Vermont Scour Critical — Countermeasures Installed Fair 1935 740
ANDOVER BRANCH Vermont Scour Critical — Countermeasures Installed Fair 1979 730
OTTER CREEK Vermont Scour Critical — Countermeasures Installed Fair 1840 700
HAWKINS BROOK Vermont Scour Critical — Countermeasures Installed Poor 1928 650
MID. BR WILLIAMS RIVER Vermont Scour Critical — Countermeasures Installed Fair 1961 610
BEDELL BROOK Vermont Scour Critical — Countermeasures Installed Good 1967 600
COLD BROOK Vermont Scour Critical — Countermeasures Installed Fair 1930 600
JEWELL BROOK Vermont Scour Critical — Countermeasures Installed Fair 1937 600
W. BR. OMPOMPANOOSUC R. Vermont Scour Critical — Countermeasures Installed Fair 1919 600
BURGESS BROOK Vermont Scour Critical — Countermeasures Installed Good 1923 590
WARDSBORO BROOK Vermont Scour Critical — Countermeasures Installed Fair 1926 540
SLEEPERS RIVER Vermont Scour Critical — Countermeasures Installed Fair 1929 500
SHEPARD BROOK Vermont Scour Critical — Countermeasures Installed Poor 1928 500
MOOSE RIVER Vermont Scour Critical — Countermeasures Installed Fair 1930 500
WHITE RIVER Vermont Scour Critical — Countermeasures Installed Poor 1928 500
CONNECTICUT RIVER Vermont Scour Critical — Countermeasures Installed Good 1930 481
BLOODY BROOK Vermont Scour Critical — Countermeasures Installed Fair 1931 400
COOKVILLE BROOK Vermont Scour Critical — Countermeasures Installed Good 1955 400
CASTLETON RIVER Vermont Scour Critical — Countermeasures Installed Good 1919 400
MOOSE RIVER Vermont Scour Critical — Countermeasures Installed Poor 1930 400
MILL POND BROOK Vermont Scour Critical — Countermeasures Installed Fair 1934 400
BARNARD BROOK Vermont Scour Critical — Countermeasures Installed Fair 1958 400
MILL BROOK Vermont Scour Critical — Countermeasures Installed Fair 1919 390
WEST BR. PASSUMPSIC RIV. Vermont Scour Critical — Countermeasures Installed Fair 1922 350
STANNARD BROOK Vermont Scour Critical — Countermeasures Installed Poor 1929 350
GREEN RIVER Vermont Scour Critical — Countermeasures Installed Fair 1966 350
GRASSY BROOK Vermont Scour Critical — Countermeasures Installed Fair 1932 350
THE BRANCH Vermont Scour Critical — Countermeasures Installed Good 1937 350
COPPERMINE BROOK Vermont Scour Critical — Countermeasures Installed Fair 1958 350
RYDER BROOK Vermont Scour Critical — Countermeasures Installed Fair 1934 340
BARTON RIVER Vermont Scour Critical — Countermeasures Installed Good 1974 310
CHARLES BROWN BROOK Vermont Scour Critical — Countermeasures Installed Fair 1958 300
WELLS RIVER Vermont Scour Critical — Countermeasures Installed Fair 1940 300
ROUNDY BROOK Vermont Scour Critical — Countermeasures Installed Fair 1929 250
WADE BROOK Vermont Scour Critical — Countermeasures Installed Fair 1927 250

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.