McHenry Dam

The McHenry Dam is the only dam on the Fox River (Illinois, USA) that is serviced by a lock system. It is located in McHenry County, Illinois and was built in 1907.

The lock operates for all powered, sail driven, or paddle propelled canoes or boats, even float tubes, at no charge.

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v • d • e Municipalities and communities of McHenry County, Illinois

County seat: Woodstock

Cities	Crystal Lake \| Harvard \| Marengo \| McHenry \| Woodstock

Villages	Algonquin \| Barrington Hills \| Bull Valley \| Cary \| Fox Lake \| Fox River Grove \| Greenwood \| Hebron \| Holiday Hills \| Huntley \| Island Lake \| Johnsburg \| Lake in the Hills \| Lakemoor \| Lakewood \| McCullom Lake \| Oakwood Hills \| Port Barrington \| Prairie Grove \| Richmond \| Ringwood \| Spring Grove \| Trout Valley \| Union \| Wonder Lake

Townships	Alden \| Algonquin \| Burton \| Chemung \| Coral \| Dorr \| Dunham \| Grafton \| Greenwood \| Hartland \| Hebron \| Marengo \| McHenry \| Nunda \| Richmond \| Riley \| Seneca

Unincorporated communities	Alden \| Burtons Bridge \| Chemung \| Coral \| Franklinville \| Harmony \| Hartland \| Lawrence \| Pistakee Highlands \| Ridgefield \| Riley \| Silver Lake \| Solon Mills \| Sunnyside \| Wonder Lake