MMSD Overflow Alert
To reduce the risk of wasterwater backing up into homes and businesses, a combined sewer overflow started around 5:40 p.m. on April 2, 2024. At the time, the main deep tunnel was 76% full. The district needs to reserve capacity in the tunnel for separate sewer flows from the suburbs. Separate sewer overflows are illegal. Federal law allows six combined sewer overflows per year.
NOTE: This press release was submitted to Urban Milwaukee and was not written by an Urban Milwaukee writer. While it is believed to be reliable, Urban Milwaukee does not guarantee its accuracy or completeness.
Mentioned in This Press Release
Recent Press Releases by Milwaukee Metropolitan Sewerage District
New Facility Marks Major Milestone in Milwaukee Estuary Cleanup
Oct 20th, 2026 by Milwaukee Metropolitan Sewerage DistrictStorage Facility Now Open for $450 Million Cleanup of Milwaukee Area Rivers












