Twilight Lift Station

About the Project

The Twilight Lift Station, constructed more than 30 years ago, currently serves the City’s downtown, Akinsdale, Campbell Park, Braeside, Forest Lawn, and Sturgeon Heights neighborhoods. Assessments completed under the 2021 Utility Master Plan (UMP) and subsequent flow studies identified that the existing station is undersized for wet weather flows and nearing the end of its useful life. In 2022, flow monitoring confirmed that the facility requires upsizing of pumps and replacement of the wet well. In 2023, further analysis recommended a new wet well design capacity with pumps and electrical upgrades to accommodate the 25-year horizon.

The project involves the installation of a new package lift station wet well, abandonment and decommissioning of the existing wet well, replacement of the existing 250 mm sanitary sewer crossing with a 375 mm sewer and casing, and associated civil, mechanical, electrical, instrumentation, and structural works. The existing control building will be retained and upgraded, while a new generator and electrical service will be installed. The project is essential to maintain reliable sanitary servicing for the downtown and southeast catchments of the City, and to address capacity deficiencies during wet weather events.

Work to include

The Work involves the civil / site works, structural, process mechanical, building mechanical, electrical, instrumentation and controls, coordination and related components for the new lift station wet well.

• the abandonment of existing forcemain
• installation of a lift station wet well 
• installation of 375mm dia. Sanitary Sewer 
• installation of 150mm dia. Forcemain, and 
• decommissioning and partial demolition of the existing Twilight Lift Station
• ventilation and heating modifications to the existing building
•  installation of Lift Station base slab and generator pad
•  installation of a new generator
•  removal and decommissioning of existing generator
•  lighting and security upgrades to existing building

Potential Construction Impacts

The construction area will be designated by construction fencing and will be defined with construction signage and barricades. Please obey the traffic control signage.

• Temporary sidewalk and road closures/detours
• Parking lot closure
• Equipment will be on-site for excavation and material installation. Please obey all signage and fenced-off areas. 
• Noise disturbance will occur during work hours.

Timeline

March to October 2026

Interactive Map

Check out the City’s interactive Construction Projects Map that outlines the construction projects planned for this year!

Launch the Map