West by Southwest to Stickney

Chapter 7 Photos

Stormwater Management

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Everything Goes Media

Lake Claremont Press

Lake Claremont Press: A Chicago Joint

S. Woodhouse Books

Photo 7.3

August 23, 2017, Mainstream tunnel 33-foot diameter outlet into McCook Reservoir under construction. The outlet invert is about 20 feet above the concrete slab. The slab contains numerous concrete blocks, integral with the slab, to dissipate the energy in the flowing water entering the reservoir. Once the water level in the reservoir rises above the crown of the outlet, the jet will be submerged and energy will be dissipated by turbulence in the reservoir. (MWRD photo 17_0823_153)