MSD is hard at work upgrading the public sewer system. Find an MSD project across Hamilton County.
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View our Combined Sewer Overflow (CSO) Activity Map to find out which CSO outfalls in MSD's service area are suspected to be actively overflowing or were recently active (within the last 72 hours).
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Visit the Lick Run Greenway, Cincinnati’s newest urban recreational space!
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The Mill Creek, once named the most endangered urban stream in America, is on the road toward recovery.
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September 24, 2026
The Ohio River Trail – adjacent to the Little Miami Wastewater Treatment Plant in the East End − will close on Monday, September 28, for one day to install a temporary detour path around a small construction zone.
The trail will re-open on Tuesday, September 29, with a short gravel detour path in place for up to a month, pending weather and field conditions.
July 30, 2026
MSD − in partnership with the Ohio Department of Transportation (ODOT) − is constructing new storm water infrastructure in the Queensgate neighborhood through spring 2029.
Traffic impacts will include periodic temporary lane closures on Western Avenue at Gest Street and at the intersection of Dalton Avenue and Gest Street.
July 17, 2026
The Cincinnati area was hit by heavy rains this evening that could result in sewer overflows into local creeks and rivers and sewer backups or water intrusion into buildings.
Here are 5 things you need to know: