North Aurora Dam

A dam has stood at this site since 1833 for John Peter Schneider's mill; [the present concrete broad-crested weir](https://dnr.illinois.gov/waterresources/safetyatdams.html) dates to 1975 after a 1974 breach of the previous structure. [Illinois says](https://dnr.illinois.gov/waterresources/safetyatdams.html) the current dam no longer serves its original milling purpose and creates a dangerous hydraulic roller linked to two deaths and multiple rescues. A 2025 state study evaluated modification and removal options, and the U.S. Army Corps' broader [Fox River plan](https://www.lrd.usace.army.mil/Mission/Projects/Article/3639577/fox-river-connectivity-habitat-study-il/) tentatively recommends full removal, with design potentially starting in 2025 and construction tentatively aimed for 2027 if funding and non-federal sponsorship are secured.

North Aurora, Illinois, United States