After a Weekend of Heavy Rains, Chicago’s Deep Tunnel Is Almost Full

This story was originally published by the Chicago Sun-Times. For the first time in history, Deep Tunnel, Chicago’s massive system of underground tunnels and reservoirs designed to hold flood water, is almost completely full after a weekend of heavy rain.

First covered Jul 7, 2026 · 1:43 PM PT · 1 article

Coverage

1d Inside Climate News After a Weekend of Heavy Rains, Chicago’s Deep Tunnel Is Almost Full — This story was originally published by the Chicago Sun-Times. For the first time in history, Deep Tunnel, Chicago’s massive system of underground tunnels and…

More coverage from around the web

chicago.suntimes.com Chicago's Deep Tunnel anti-flooding system nearly full after days of heavy rain - Chicago Sun-Times

wbez.org Chicago's Deep Tunnel anti-flooding system nearly full after days of heavy rain - WBEZ Chicago

blockclubchicago.org The System Built To Prevent Massive Floods In Chicago Near Capacity After 'Stunning' Rainfall

news.wttw.com Deep Tunnel Reservoirs Nearly Full as Chicago Region Pounded With Rain Over Holiday Weekend | Chicago News | WTTW

chicago.suntimes.com Deep Tunnel almost full after heavy rains - Chicago Sun-Times

Appeared in: 2026-07-08 (#17)

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