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Underflow Tunnel and Reservoir Plan
Chicago, Illinois, United States
Also known as: Deep Tunnel
Learn about this topic in these articles:
Chicago
- In Chicago: Municipal services
…an ambitious project popularly called Deep Tunnel. It consists primarily of a vast system of large tunnels bored in the bedrock deep beneath the region that collects and stores stormwater until it can be processed at treatment facilities.
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sewage control
- In tunnels and underground excavations: Potential applications
…an imaginative concept is Chicago’s Underflow Tunnel and Reservoir Plan, which is intended to alleviate both pollution and flooding. Like most older cities, Chicago has a combined sewer system that carries both storm runoff and sanitary sewage during wet weather but only sanitary sewage during dry weather. The city’s huge…
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