River/Stream: Shell Rock River
Location: Clarksville, Butler County
Latitude: 42.766971
Longitude: -92.668948
Built: 1932
Owner: Iowa Department of Natural Resources and Butler County Conservation Board
Height: 4 feet
Length: 150 feet
Warning Signs: Above average due to Iowa DNR ownership
Portage option: On river left approximately 300 feet upstream of the dam. Watch for signage and three stone steps.
Comments: aka Heery Woods Park Dam. Dam face river left of center starting to deteriorate.
Fatalities: