It's all about clean water.

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Experiencing a sewer backup? Report it now

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In Your Neighborhood

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Find an MSD project

MSD is hard at work upgrading the public sewer system.  Find an MSD project across Hamilton County.

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View CSO Activity

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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Our Clean Water
Progress

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Features

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LICK RUN GREENWAY

Visit the Lick Run Greenway, Cincinnati’s newest urban recreational space!

 

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MILL CREEK'S JOURNEY TOWARD RECOVERY

The Mill Creek, once named the most endangered urban stream in America, is on the road toward recovery.

 

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THE LATEST

News & Announcements

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September 24, 2026

Ohio River Trail near Little Miami WWTP to close for one day on September 28

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.

 

View the press release

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July 30, 2026

Notice of Construction and Traffic Alert for Queensgate

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.

 

View the press release

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July 17, 2026

Sewer Backup? 5 Things You Need to Know

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:

 

  1. Report possible sewer backups 24/7 to MSD at (513) 352-4900 or online at msdgc.org/SBU.
  2. MSD will investigate every report of a possible sewer backup.
  3. MSD will provide documentation of their visit.
  4. You can help prevent sewer backups and water intrusion by taking action before the storm hits.
  5. Additional information is available on the MSD website at msdgc.org/SBU.

View the press release

Contact Us

Report a Sewer Backup, Sewage Surfacing, Missing Manhole Lid, Cave-in (Sinkhole) 24/7

(513) 244-1300 (Option 1)