Restoring the Natural Divide: Separating the Great Lakes and Mississippi River Basins in the Chicago Area Waterway System  

Introduction
The Great Lakes Commission and the Great Lakes and St. Lawrence Cities Initiative, with support from six funders, embarked on a project in July 2010 to identify engineering options for Chicago's waterway system that will prevent interbasin movement of aquatic invasive species, including Asian carp. The expedited study, now completed, also examines potential improvements to the waterway's roles in commercial navigation, recreational boating, flood and stormwater management, and water quality. Read the official news release

Read comments from prominent leaders
Read MI Sen. Debbie Stabenow and Rep. Dave Camp's statement
Read MI Attorney General Bill Schuette's statement
Read MI Rep. Candice Miller's statement
Download the media conference audio (.wav file)
Download the public briefing audio (.wav file)


Quick Links



From left: David Ullrich, executive director of the
Great Lakes and St. Lawrence Cities Initiative, and
Tim Eder, executive director of the Great Lakes Commission,
speak at the media conference in Chicago on Jan. 31.

Download the media conference audio (.wav file)


Reports

Summary Report   6MB PDF

Summary Report, Executive Summary Only   1MB PDF

Technical Report (HDR, Inc.)   36MB PDF - LARGE FILE

Technical Report Appendices (HDR, Inc.)   103MB PDF - LARGE FILE

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Image Gallery

Below are a selection of graphics featured in the summary report. Click a size (small or large) to view the image. Right click to download the image to your desktop. All images should be credited to the Great Lakes Commission unless otherwise indicated.

Study Area and Great Lakes Watershed (page 2) - Small or Large

Chicago Waterway Map (page 3) - Small or Large

Separation Alternatives (page 5) - Small or Large

Historic flow, circa 1900 (page 6) - Small or Large

Key Elements of the Separation Alternatives (page 12) - Small or Large

Down River Alternative (page 16) - Small or Large

Mid-System Alternative (page 17) - Small or Large

Conceptual Rendering (page 17) - Small or Large - credit: HDR, Inc.

Near Lake Alternative (page 18) - Small or Large

Total Costs ($Billions)(Present Value) (page 19) - Small or Large

Summary Report Cover - Small or Large

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Additional Materials

Michigan Attorney General Bill Schuette's statement

Michigan Rep. Candice Miller's statement

Michigan Sen. Debbie Stabenow and Rep. Dave Camp's statement

Chicago Waterway Study FAQ (PDF)

Asian Carp risks (Great Lakes Fishery Commission) (PDF)

Economic factors concerning separation (PDF)

Comments from prominent leaders regarding "Restoring the Natural Divide" (PDF)

Media conference presentation slides (PDF)

Media conference audio (.wav file)

Public briefing audio (.wav file); public briefing advisory (PDF)

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Contacts

Tim Eder, Executive Director, Great Lakes Commission
734-971-9135 or 734-604-7281 (cell); teder@glc.org

David Ullrich, Executive Director, Great Lakes and St. Lawrence Cities Initiative
312-201-4516 or 312-480-6501 (cell); david.ullrich@glslcities.org

Tim Eder and David Ullrich biographies

Great Lakes Commission   //   Great Lakes and St. Lawrence Cities Initiative

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Restoring the Natural Divide: Separating the Great Lakes and Mississippi River Basins in the Chicago Area Waterway System