A system of levees or flood control berms were constructed along the East Branch of the DuPage River, between Middleton Avenue and Maple Avenue, and along St. Joseph Creek between the river and Route 53.
Building of the Levees
The levees were built in the late 1960s by the Illinois Department of Transportation to protect Lisle from smaller, more frequent floods up to the 2% or a 50-year flood.
Lisle's Levees
Lisle’s levees are more than 50 years old. The levees were constructed on private property. The Village provides routine mowing and debris removal from storm sewer outlets. Extensive erosion has occurred along the inside of the levees, which, along with trees, power poles and seepage, threaten its long term stability. The 2012 East Branch DuPage River Levee Study outlined over $9 million in repairs to stabilize the levees. DuPage County is looking at grant funding for these levee repairs.