Do you want to know more about how the Stratton Lock and Algonquin dams operate? This link gives a very good technical look as to the hows and whys decisions are made pertaining to the operations of the dams. If you look through the page you will see links to the Operation Manual, Winter Draw down, Operational updates, Construction updates (when available) and other helpful information.
https://www.dnr.illinois.gov/WaterResources/Pages/StrattonLockandDam.aspx