Dams in Stephenson County, Illinois

4Total Dams
2High Hazard
2Significant

Dam Safety in Stephenson County, Illinois

Stephenson County has 4 dams tracked in the National Inventory of Dams. Of these, 2 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification.

The average dam in Stephenson County is 58 years old. The most common purpose is other. The tallest dam is Lake Le-aqua-na Dam at 44 ft.

DamHazardConditionHeight (ft)PurposeYear
Willow Lake DamHighNot Available25Other1974
Highland Community College Lake DamHighNot Available20Flood Risk Reduction1970
Lake Le-aqua-na DamSignificantNot Available44Recreation1955
Pearl City Lagoon DamSignificantNot Available11Other1970