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.
Explore more: Oldest dams in Idaho · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Winchester | High | Fair | 40 | Other | 1910 |