An Aecon-led consortium was awarded a C$815 million contract on Friday, July 17, to upgrade Winnipeg's main sewage-treatment plant [1, 4].
The project targets the North End Water Pollution Control Centre, the city's largest and oldest wastewater facility. Modernizing the site is critical to expanding the city's biosolids handling capacity and ensuring the long-term viability of its water treatment infrastructure [1, 4].
The winning group, known as Red River Biosolids Partners, consists of Aecon Group Inc., MWH Constructors, and Oscar Renda Contracting [1, 2]. This partnership will execute the upgrade as a progressive design-build project, focusing specifically on the biosolids facilities [3].
The contract is valued at C$815 million [1], which is approximately US$580 million [4]. This investment represents a significant capital expenditure for the City of Winnipeg to address aging infrastructure and increase operational efficiency.
Aecon Group Inc. expects to see a financial impact on its construction backlog soon. The company will add its one-third share of the C$815 million contract to its books during the third quarter of 2026 [2].
The North End Water Pollution Control Centre serves as the primary hub for the city's wastewater management. Because the facility is the oldest in the system, the upgrades are designed to replace outdated components and expand the volume of waste the plant can process effectively [1, 4].
“An Aecon-led consortium was awarded a C$815 million contract to upgrade Winnipeg's main sewage-treatment plant.”
This contract highlights a broader trend of municipal infrastructure renewal in Canada. By utilizing a progressive design-build model, Winnipeg aims to reduce the risk of cost overruns and delays typically associated with upgrading legacy industrial sites. The scale of the investment reflects the increasing pressure on urban wastewater systems to handle larger populations and stricter environmental standards for biosolids processing.


