Ontario Construction News staff writer
Pomerleau, in partnership with Aecon and Stantec, has been selected by the Government of Canada to deliver the Arctic Over-the-Horizon Radar (A-OTHR) project under a collaborative Integrated Project Delivery (IPD) model.
The consortium will begin a validation phase in the first quarter of 2026. Pending successful validation and completion of design development, construction is expected to follow.
The A-OTHR system is part of a broader federal investment to modernize North American Aerospace Defense Command infrastructure, aimed at strengthening surveillance of Canada’s northern approaches. Once operational, the long-range radar network will provide early warning capabilities critical to national defence.
Pomerleau’s consortium mandate includes supporting the design and delivery of essential site infrastructure for the next-generation radar system. The project will also involve environmental assessments and community engagement as planning advances.
“This project represents a significant milestone in advancing Canada’s future-focused surveillance capabilities,” the consortium said in a statement.
“Pomerleau is honoured to contribute to this nation-defining initiative that strengthens Canada’s defense capabilities,” said Philippe Adam, president and CEO of Pomerleau. “It reinforces our role as a trusted partner in delivering complex infrastructure, at a time when national demand for these capabilities is rapidly increasing.
“Working hand in hand with our client, the Government of Canada, and our partners, we are fully engaged in delivering this ambitious project through seamless collaboration, technical excellence and innovation.”
The A-OTHR project is expected to become a key component of Canada’s evolving defence infrastructure, supporting long-term security objectives in the Arctic and beyond.
