Dams in Lewis County, Idaho

1Total Dams
1High Hazard
0Significant

Dam Safety in Lewis County, Idaho

Lewis County has 1 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life.

The average dam in Lewis County is 116 years old. The most common purpose is other. The tallest dam is Winchester at 40 ft.

DamHazardConditionHeight (ft)PurposeYear
WinchesterHighFair40Other1910