Annual Sewer Lining Program

In Construction Sewer

Sewer lining is a cost-effective, non-invasive procedure that lines the inside of aging sewer mains to prolong their life an ensure reliable sewer service for those connected to the main.

Progress & Status

Construction Complete

There are seven sewer rehabilitation work areas in our current program around the service area.

  • Lincoln Lemington Belmar
  • Highland Park
  • Greenfield
  • Overbrook
  • West End
  • Spring Hill
  • Marshall Shadeland


This work primarily involves sewer lining, which is a cost-effective and non-invasive process in which crews install a liner within existing sewers to reinforce the sewer and extends its life. The sewer is accessed via manholes, avoiding costly and disruptive digging in the street.

Sewer lining work also occurs in more limited areas as needed throughout the sewer system. You can visit PWSA's interactive project map to see which streets in your area are receiving sewer lining rehabilitation. 

Residents and businesses that will be impacted by sewer lining work will be notified via door hanger 24-hours before work begins. Work typically lasts one day, from 7:00 a.m. - 7:00 p.m. You will be asked to limit your water usage during this time, as your sewer lateral will be blocked while the liner is being installed. It is also recommended you block your sewer trap with one gallon of water to stop any smells from the sewer liner entering your basement. Sewer traps are typically found in the floor of your basement and look like a small drain. 

Door hangers will have contact information for project superintendents and inspectors in the field who can answer questions and address any immediate concerns with the work. 

Locations & Schedule

Location Details:
Throughout the City of Pittsburgh

Start Date: Ongoing

Completion Date: Ongoing

Work Schedule: Monday – Friday from 7:00 a.m. – 7:00 p.m.

Traffic Patterns: Contractors may need to close intersections to access manholes. When needed, detour signs will be posted accordingly.