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, construction services including contract administration and post-construction/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:Ìýsee full project page
Project Type:Ìýsee 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:Ìýsee full project page
Project Type:Ìýsee 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:Ìýsee full project page
Project Type:Ìýsee 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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