Pomerleau selected for Arctic Over-the-Horizon Radar Project 

Pomerleau, in collaboration with Aecon and Stantec, has been selected to deliver the Government of Canada’s Arctic Over-the-Horizon Radar (A-OTHR) project, a major defence infrastructure project aimed at strengthening Canada’s defence and surveillance capabilities.  

As part of a federal investment to modernize North American Aerospace Defense Command (NORAD) infrastructure, the A-OTHR system will provide long-range, early-warning radar coverage of Canada’s northern approaches, supporting national and continental security objectives.  

Strengthening Canada’s northern surveillance capabilities  

The Arctic Over-the-Horizon Radar project represents a major milestone in the modernization of Canada’s defence infrastructure. Once operational, the system will enhance situational awareness by providing early detection and monitoring across Canada’s northern approaches, strengthening long-range radar infrastructure to reinforce the country’s ability to safeguard its airspace. 

 A collaborative delivery model with industry partners  

The project is being delivered through a consortium bringing together the expertise of Pomerleau, Aecon and Stantec. The consortium’s mandate includes supporting the design and delivery of critical site infrastructure required for this next-generation radar system.  

By combining technical knowledge and experience delivering complex infrastructure projects across Canada, the consortium will support the successful execution of this nation-defining initiative. 

The first sites represent an important step in advancing Canada’s future-focused surveillance capabilities. The project will include environmental assessments, community engagement activities, and phased construction. A validation phase will commence in the first quarter of 2026. Upon validation and the completion of a design development phase, construction is expected to begin.

Delivering complex infrastructure for national priorities  

‘’ Pomerleau is honoured to contribute to this nation-defining initiative that strengthens Canada’s defence 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 continues to rise. Working hand in hand with our client, the Government of Canada, and our partners Aecon and Stantec, we remain committed to delivering this ambitious project through seamless collaboration, technical excellence and innovation’’.  

Through this project, Pomerleau continues to support Canada’s long-term defence and infrastructure priorities, contributing its expertise in defence infrastructure to initiatives that help build a more secure and resilient future.