The Metropolitan Water Reclamation District (MWRD) Northside Water Reclamation Plant has reported that over 4 inches of rain has been recorded between and .
Due to the heavy rain, the MWRD opened the Wilmette locks into Lake Michigan at approximately , and the locks are currently still open. Even with this preventative measure, the City of Evanston is still experiencing significant street flooding and some surcharging of the sewers, particularly on the Northwest side of the City.
The City’s drainage system is designed to allow water to pond on the streets. By restricting flow into the sewers, the City is able to help prevent sewer surcharges that can lead to basement backups. However, in the event that the water in the street does not drain within four hours of the end of the rain event, or if you are experiencing a basement backup that may be attributed to a sewer surcharge, please call the emergency line at the Water and Sewer Division at (847) 866-2942 during business hours or at (847) 475-6880 at night and on weekends.