Mix of Heavy Rain, Melting Snow Puts McCook Reservoir to the Test
The 3 to 5 inches of rain that fell on the Chicago area over the last two days, along with melting snow, caused heavy flooding in the south Chicago suburbs and northwest Indiana. It was also the first test of the huge new McCook Reservoir that opened in December.
Below: A time-lapse video shows the McCook Reservoir filling up with water this week, beginning Monday through Wednesday morning.
Feb. 20: Melting snow and more than 2 inches of rain have caused flooding and sewer backups in and around Chicago.
Feb. 19: A forecast of heavy rain, unseasonably warm temperatures and melting snow presents a flooding risk for Chicago. MWRD offers tips to prevent basement backups and reduce strain on local water systems.
Oct. 16: Chicago’s sewer and deep tunnel system couldn’t handle this weekend’s rain, allowing untreated sewage and stormwater into Lake Michigan.