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High Risk Dams in Vermont

Vermont has 20 high hazard dams with a condition assessment of poor or unsatisfactory. These are dams where failure would probably cause loss of human life and where recognized safety deficiencies have been identified.

Of the 67 high hazard dams in Vermont, 20 (29%) have concerning condition ratings — 19 rated poor and 1 rated unsatisfactory.

Condition scale, best to worst
  1. Satisfactory No existing or potential safety deficiencies recognized; acceptable performance expected under all loading conditions.
  2. Fair No deficiencies under normal operating conditions; a rare flood or earthquake could create one.
  3. Poor A safety deficiency is recognized under normal operating conditions; remedial action is necessary.
  4. Unsatisfactory Worst rating. The dam is considered unsafe; a deficiency requires immediate or emergency remedial action.

"Not rated" means no assessment is on file in the National Inventory of Dams.

DamCountyHeight (ft)ConditionLast inspectedPurposeYear
WaterburyWashington187Poor08/03/20179 yrs agoFlood Risk Reduction1938
Windsor UpperWindsor55Poor06/23/201610 yrs agoRecreation1834
Thurman W. Dix ReservoirOrange50Poor07/18/20242 yrs agoWater Supply1950
Wright ReservoirWindsor36Poor07/18/20233 yrs agoOther1930
BlodgettOrange32Poor06/06/20242 yrs agoRecreation1965
St. Albans North ReservoirFranklin32Poor08/01/20242 yrs agoWater Supply1895
Indian Brook ReservoirChittenden31Poor08/01/20242 yrs agoRecreation1957
Silver LakeWindsor30Poor07/20/20242 yrs agoRecreation1968
Snow LakeWindham28Poor08/02/20179 yrs agoRecreation1961
Snowshed PondRutland28Unsatisfactory04/19/20242 yrs agoOther1970
Institute PondCaledonia26Poor05/22/20242 yrs agoOther1911
Chestnut Hill ReservoirWindham25Poor06/12/20179 yrs agoWater Supply1884
East Long PondWashington20Poor07/26/20233 yrs agoOther1930
Lake SadawgaWindham19Poor07/06/20179 yrs agoRecreation1880
Ryder PondWindham17Poor08/17/20224 yrs agoRecreation1972
Lake Sadawga West DikeWindham16Poor07/20/20233 yrs agoRecreation1880
Crescent LakeWindsor16Poor06/14/20197 yrs agoRecreation1920
Stiles PondCaledonia14Poor05/22/20242 yrs agoWater Supply1877
Lower PondChittenden12Poor06/13/20242 yrs agoOther1867
West Hill PondWashington11Poor07/12/20242 yrs agoRecreation1820

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