York Trunk Sewer and Paisley-Clythe Feeder Main Project

The York trunk sewer Paisley-Clythe feeder main is a $30 million, multi-year infrastructure project. It is the City’s largest water main and wastewater (sanitary) sewer project. It includes the installation of about 6.2 kilometres of water pipes and 3.8 kilometres of sewer pipes. The City’s 2009 Water and Wastewater Servicing Master Plan identified the projects as priorities in order to meet our community’s existing and future water and wastewater servicing needs.

As part of the project planning, the City of Guelph completed a Municipal Class Environmental Assessment (EA) study in 2012 and the project proceeded to detailed design and construction.

More details on Environmental Assessment

York Trunk sanitary sewer – in progress

The York Trunk sanitary sewer is being upgraded. A sanitary sewer carries wastewater from homes and businesses to a wastewater treatment plant where it is treated before being discharged into a body of water.

Our city’s infrastructure needs to be replaced or repaired over time in order to ensure good working condition and to accommodate changes in demand. The existing York Trunk sanitary sewer is reaching the age where it is in need of replacement, and growth in our community means we also need a larger sewer pipe.

This sanitary sewer runs alongside the Eramosa and Speed Rivers from the former Guelph correctional centre lands to the Wastewater Treatment Plant on Wellington Street, just west of the Hanlon Expressway.

Paisley-Clythe drinking water feeder main – complete

The Paisley-Clythe drinking water feeder main is new. A feeder main is a large pressurized pipe that carries—or feeds—water straight from one place to another. Unlike water mains, feeder mains do not connect to homes or businesses.

This new feeder main will improve the movement of water between the F.M. Woods Pumping Station and two reservoirs at the west (Paisley) and east (Clythe) ends of the City. Water from those reservoirs is supplied to homes and businesses by water mains.


Phase 1 – Complete

Phase 1 of the project included the installation of about 2.2 km of water and sewer pipes. With a construction budget of $9.9 million, this phase included the area from Silvercreek Park eastward to Gordon Street. Phase 1 was competed in 2016.

More on Phase 1

Phase 2 – Complete

Phase 2 of this project included the installation of approximately 1.5 km of water and sewer pipes from Gordon Street at the Speed River eastward through York Road and Eramosa River Parks to the F.M. Woods Pumping station, and along Waterworks Place to York Road. Water pipe installation and asphalt road base for Brockville Road is complete.

More on Phase 2

Phase 3 – Future

Phase 3 of the project includes the remaining section of water pipe from York Road to the Clythe pumping station and reservoir at the east end of the city. The timing for this section of this phase is yet to be determined.

For more information

David Di Pietro, Project Engineer
Design and Construction, Engineering and Transportation Services
519-822-1260 extension 3574
[email protected]