In an effort to restore riverine conditions, notching of Hoffman Dam began on June 20, 2012 as part of the Hoffman Dam Project. The purpose of the project is to alleviate the ill effects of three low-head dams along the Des Plaines River near the Villages of Lyons and Riverside, Illinois. These dams no longer serve their original purpose of creating recreational pools and currently impede the migration of fish, impair water quality (dissolved oxygen, high temperatures) and have converted riverine habitat to stagnant reservoir habitat.

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Photo by: Jessica Majchrowski |  VIRIN: 120620-A-OE847-001.JPG