Jan. 29, 2016 01:00

World’s Largest Storm Reservoir

In Thornton, Illinois, a limestone quarry that is nearly a century-old is beginning a new life as a massive reservoir for capturing stormwater overflows. The Thornton reservoir, south of Chicago, Illinois, began taking in water during a rainstorm in late November, trapping 400 million gallons of combined sewer overflow before pumping it to a treatment plant.

And that’s only a small fraction of its 7.9 billion-gallon capacity. The Metropolitan Water reclamation District of Greater Chicago said the new stormwater reservoir is the largest in the world.

It serves as an escape hatch when Chicago’s Deep Tunnel system fills to the brim, which happens during some heavy storms. It will help stop stormwater tainted with sewage from running into lake Michigan and other area waterways, as well as flooding basements.


Also in Stormwater News


In many ways, we are fortunate that, in our chosen profession, we are able to help people when certain disasters occur: the tornadoes in Missouri, Oklahoma, Louisiana and Georgia, the flooding in Louisiana, the snows in the northeastern part of the country, the rain in California, and the snow in Colorado....

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