Dossier
Deep Tunnel
Coverage of Deep Tunnel in the Nexus archive.
- The System Built To Prevent Massive Floods In Chicago Near Capacity After ‘Stunning’ Rainfall
Chicago's Deep Tunnel stormwater system is near capacity due to record rainfall, with the Thornton Reservoir at 94% full and the McCook Reservoir reaching capacity multiple times this year. The Metropolitan Water Reclamation District warns of potential river flooding in south suburbs if reservoirs overflow, as summer rainfall totals far exceed historical averages.
- Deep Tunnel has never reached its limit. After a weekend of heavy rains it’s almost full
Chicago's Deep Tunnel floodwater system is nearly full after heavy rains, with two reservoirs at 94% and 98% capacity. Eleven suburban communities face river flooding risks, and sewer overflows into the Chicago River are possible. Experts warn the system is insufficient and more water storage solutions are needed.