Ten top pre-bid water/sewer projects in Ontario, ranked by project value as of July 21, 2026.
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New South Niagara Falls Wastewater Treatment Plant and Outfall
Site work for a civil project in Niagara Falls, Ontario. Design plans call for site work for a water / sewer project. Construction of a new wastewater treatment plant and outfall.
Project Value (CAD): $400,000,000
Building Use: Water / Sewer
Sector: Public – County
Project Type: N/A
Location: 929-989 W 41st Ave, 5670 Oak St, 988 W 38th Ave, 5469-5507 Willow St, Vancouver, BC
Project Stage: Design
6811 Reixinger Road, Niagara Falls, ON
North Plant Secondary Treatment Upgrades - Humber Treatment Plant (North Plant)
Renovation of a water / sewer project in Toronto, Ontario. Design plans call for the renovation of a water / sewer project. The City of Toronto intends to retain a qualified Engineering Consultant (‘Supplier’) to provide engineering services for preliminary design, detailed design, permits and approval coordination, guaranteed maximum price assessment and or tendering assistance, Â鶹´«Ã½Ó³» services including contract administration and post-Â鶹´«Ã½Ó³»/warranty for the HTP North Plant Secondary Treatment System Upgrades (the ‘Project’).
Project Value (CAD): $400,000,000
Building Use: Water / Sewer
Sector: Public – City
Project Type: Renovation
Location: 130 The Queensway, Toronto, ON
Project Stage: Design
130 The Queensway, Toronto, ON
Whitby Water Supply Plant Expansion Project - Contract 4 - Plant Expansion
Demolition and site work for a water / sewer project in Whitby, Ontario. Design plans call for site work for a water / sewer project; and water / sewer project. Contract 4: Water Supply Plant Expansion.
Project Value (CAD): $200,000,000
Building Use: Water / Sewer
Sector: Public – City
Project Type: Site Work
Location: 289 Water St, Whitby, ON
Project Stage: Design
289 Water St, Whitby, ON
New Reservoir at the Arthur P. Kennedy Water Treatment Plant
Project Value (CAD): $90,000,000
Building Use: see full project page
Sector: see full project page
Project Type: see full project page
Location: 920 East Ave, Mississauga, ON
Project Stage: see full project page
920 East Ave, Mississauga, ON
Lower Centennial Parkway Trunked Sanitary Sewer
Project Value (CAD): $83,000,000
Building Use: see full project page
Sector:Â see full project page
Project Type:Â see full project page
Location: Centennial Pkwy, Hamilton, ON
Project Stage: see full project page
Centennial Pkwy, Hamilton, ON
Kingston Inner Harbour (KIH) Sediment Management Project
Project Value (CAD): $71,400,000
Building Use: see full project page
Sector: see full project page
Project Type: see full project page
Location: LaSalle Causeway & Kingston 2, Kingston, ON
Project Stage: see full project page
LaSalle Causeway & Kingston 2, Kingston, ON
Lively Walden Wastewater Treatment Plant Upgrades and Expansion
Project Value (CAD): $70,000,000
Building Use: see full project page
Sector:Â see full project page
Project Type:Â see full project page
Location: 3rd Concession Rd, River Valley, ON
Project Stage: see full project page
3rd Concession Rd, River Valley, ON
Meaford New Wastewater Treatment Plant
Project Value (CAD): $61,513,000
Building Use: see full project page
Sector: see full project page
Project Type: see full project page
Location: 35 Grant Ave, Meaford, ON
Project Stage: see full project page
35 Grant Ave, Meaford, ON
Stone Church Road Feedermain
Project Value (CAD): $53,000,000
Building Use: see full project page
Sector:Â see full project page
Project Type:Â see full project page
Location: Stone Church Rd, Hamilton, ON
Project Stage: see full project page
Stone Church Rd, Hamilton, ON
County Road 22 Sanitary Sewer Expansion
Project Value (CAD): $50,000,000
Building Use: see full project page
Sector: see full project page
Project Type: see full project page
Location: County Rd 22, Lakeshore, ON
Project Stage: see full project page
County Rd 22, Lakeshore, ON
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