As rainfall in the region has ended, MSD’s sanitary sewer system capacity is restored. Residents may return to normal water usage. We appreciate your cooperation in refraining from using large amounts of water over the past few days, as it greatly assisted us in managing the situation effectively.
Number of residential sanitary sewer backups
Since the onset of this flooding event on April 2, 2025, MSD’s Customer Relations has received more than 256 calls concerning sanitary sewer backups. If you experience a backup, please contact MSD at 502.540.6000.
Stormwater and combined sewer overflow storage
Since 2000, MSD has added added nearly one billion gallons of stormwater and combined sewer overflow storage to our system. Including: (MG is Million Gallons)
Ashland Gate 1 MG
Bells Lane Diversion & Treatment Basin 25 MG
Brady Lake & Executive Inn 21.5 MG
Churchill Downs Green Infrastructure Project 3 MG
Clifton Heights Basin 6.9 MG
Logan Street Basin 17 MG
Nightingale Pump Station Basin 8 MG
Ohio River Interceptor 1.8 MG
Portland Green Infrastructure Project 35 MG
Portland Basin and inline storage 8.2 MG
Shawnee Park Basin 20 MG
Sneads Branch 2.5 MG
Southern Outfall Relief 1 27.4 MG
Southwestern Overflow Relief 2 10.25 MG
Southwestern Pump Station Sluice Gate Chamber 30.1 MG
Waterway Protection Tunnel 55 MG
