Crews prepare trench for sewer replacement on Centre Avenue

This August, PWSA completed an extensive infrastructure upgrade on Centre Avenue between Morewood Avenue and Devonshire Street in the Shadyside neighborhood of Pittsburgh.

Upon completion, this four-month-long project replaced an aging sewer main and water main, as well as any lead service lines found there during the work.

After crews televised the sewer main and determined there were structural deficiencies, they began to devise a plan for replacement. Upgrading the sewer pipe would mean moving the water main, which was installed above the sewer main, making construction access difficult. Crews then built a new water main in a location that would not obstruct the sewer.

They then got to work replacing the portion of failing sewer pipe. The entire length of the sewer on the block was also lined using a trenchless lining process to further reinforce it from the inside. This project was part of PWSA’s Sewer Under Structures Program, which addresses aging sewers that are obstructed by structures like other utilities or buildings.

The project commences as PWSA celebrates Sewer Awareness Month, an annual recognition of PWSA’s sewer system and all it does for us. To learn more about the importance of our sewers and how you can play a part in protecting them, visit our Sewer webpage.