Lake Leopold is a 22 acre± lake constructed in-part with the Prairie Crossing Subdivision in Grayslake, Illinois.  The subdivision is an acclaimed award-winning conservation design community known mostly for the preservation of open space and a naturalized stormwater management system.  Manhard was contracted to prepare engineering plans and complete the permitting process necessary to restore 900 shoreline feet in the northeastern bay.

Due to the water quality, the lake has been successfully used to re-introduce a number of Illinois endangered and threatened species.  Several of these species have been documented to have done well to a point where the lake can serve as a hatchery.

The project was a showcase presentation at the 2017 Illinois Lakes Management Association (ILMA) Annual Conference in Crystal Lake, IL.