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DuPage River Feasability Study

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AUTHORITY:  Section 206, Flood Control Act of 1958

DESCRIPTION:  The DuPage River and tributaries drain approximately 353 square miles in suburban Cook, DuPage and Will Counties in Metropolitan Chicago.  The study area has experienced rapid development over the past several decades, and currently includes 40 communities affecting approximately 4,300,000 people.  Major storm events occurred in the basin in 1996, 2008, 2009, and most recently in April 2013, resulting in significant overbank flooding in over 20 communities and significant damage to residential and non-residential structures and critical infrastructure and the closure of two major interstate highways (I-80 and I-55) for several days.  Average annual flood damages are currently estimated at $30 million.

The DuPage River, Illinois Feasibility Study will investigate overbank and backwater flooding along the DuPage River and its major tributaries, focusing on prioritizing high risk areas and developing a range of possible structural and non-structural alternatives to address flooding.  A range of possible solutions will be evaluated including floodwater storage, levees or floodwalls, diversion channels, channel modifications, flow control structures, flood-proofing, structure elevations and buyouts.  

STUDY AREA:  The DuPage River and tributaries drain approximately 353 square miles in suburban Cook, DuPage and Will Counties in Illinois. The study area has experienced rapid development over the past two decades, and currently includes 40 communities and approximately 900,000 residents.  Major storm events resulting in overbank flooding in the basin occurred in 1996, 2008, 2009, and most recently in April 2013. The April 2013 flood impacted at least 20 communities and caused significant damage to residential and non-residential structures, critical infrastructure and the closure of two major interstate highways (I-80 and I-55) for several days.

Communities within DuPage County where flooding will be evaluated include, but are not limited to: Bartlett, Carol Stream, Glen Ellyn, Hanover Park, Lisle, Lombard, Naperville, Roselle, Warrenville, West Chicago, Westmont, Winfield and Woodridge. Communities within Will County include, but are not limited to: Bolingbrook, Joliet, Romeoville, Crest Hill, Plainfield, Minooka, Channahon, Plainfield Township, and Wheatland Township. 

CURRENT STATUS: On July 14, 2015 the U.S. Army Corps of Engineers, Chicago District, signed a Feasibility Cost Share Agreement (FCSA) with the DuPage County Stormwater Management Planning Committee and Will County Executive Office, initiating the study. During the initial phase of the study, the partners are collecting available data and developing preliminary alternatives to address the flood risks. This initial phase will include public scoping as required by the National Environmental Policy Act (NEPA) and coordination with Federal, state, and local resource agencies.   

PUBLIC MEETING INFORMATION:

Public meetings were held Monday, November 16 in Bolingbrook, Ill., Tuesday, November 17 in Wheaton, Ill., and Wednesday, November 18 in Shorewood, Ill.

Copies of the presentations from those meetings:

U.S. Army Corps of Engineers presentation about the DuPage River study

Presentation from DuPage County Stormwater Management

Presentation from Will County

      

NON-FEDERAL SPONSORS:  DuPage County and Will County  

Project Manager

Imad Samara

Study Area