South Side Flats Sewer Separation Project

In Planning Sewer

The Southside Flats Sewer Separation Project looks to create dedicated storm and sanitary sewers on several South Side Flats streets to ensure more reliable sewer service for our customers.

Progress & Status

Design Complete

The PWSA Project team hosted a community meeting Wednesday, March 8th, at the South Side Market House from 6:30 - 8:00 p.m. You can view the presentation here.

Crews have replaced some lead service lines within the project area as part of the Neighborhood Lead Line Replacement Project

The contract for sewer separation work is now out to bid and will be awarded in early 2024.

This portion of the sewer system is currently “combined,” which means the pipes carry both stormwater and sewage, which can lead to overtaxed pipes during heavy stormwater events. Too much sewer flow during heavy rains can cause basement backups, overland flooding, and polluted waterways in our region. 

As the construction team designates a new sewer just for stormwater, we will connect all properties with splashing downspouts and extend storm laterals to the edge of the roadway for remaining properties. We will also replace any lead service lines found within the project area as part of the American Rescue Act-funded Neighborhood Lead Line Replacement Program.


Locations & Schedule

Location Details:
South Side Flats

Start Date: Spring 2024

Completion Date: TBD

Work Schedule: Monday-Friday, 7:00 a.m. - 5:00 p.m.

Traffic Patterns: Street closures will be posted throughout the project area as needed.

South Side Flats Project map

Sidney Street at S. 20th Street (and surrounding area)
Pittsburgh, PA 15203
United States

Project Contacts

If you have questions, please contact

Construction Communication Project Manager :
Mora McLaughlin