After a storm, Chicago streets transform. Water rushes through alleys and basements begin to seep. The sewers can’t drink it ...

Chicago has poured $4 billion into its “Deep Tunnel” project, a network of tunnels and reservoirs that will eventually be able to hold upwards of 20 billion gallons of water. Some argue that the city ...

The historic 1,000-year flood that dropped upwards of 10 inches of rain in some areas led to the largest combined sewer overflow since the Deep Tunnel went fully into operation in the early 1990s. The ...

Chicagoans know the dread of driving on Lower Wacker and the joys of the Pedway system, but recent viral videos are claiming to unveil other parts of “Underground Chicago” — from eerie tunnels to full ...