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Chicago's Underground Unveiled for the First Time Since Al Capone's Legacy Ended

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The nation's most impressive combined sewer overflow (CSO) conveyance and storage system is now in its final stretch of design and construction. The Metropolitan Water Reclamation District of Greater Chicago's (District's) award-winning Tunnel and Reservoir Plan (TARP) continues to set precedence on how to effectively manage CSOs and improve the quality of environment and life in large metropolitan areas. TARP collects the CSO and floodwaters across the city of Chicago and Cook County and serves a combined domestic and equivalent industrial user population of nearly 10.1 million.

Thanks to District's visionary thinking and sustainable underground network that is well beyond what Al Capone could have ever imagined; the Windy City now stands out as one of the most vibrant metropolitan areas in the world, and stands ready to host the 2016 Olympics.

Document Type: Research Article


Publication date: January 1, 2008

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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