The Wheeler River worksite in an undated photo. (Image Credit: Denison Mines Corporation)

By Derek Cornet

uranium mine

Full scale construction to commence at Wheeler River

Jul 28, 2026 | 2:20 PM

Denison Mines Corporation has announced activities at the Phoenix In-Situ Recovery uranium mine have transitioned from site preparations to full-scale construction.

Since the start of site preparation and early works in March 2026, the company states significant progress has been made by Denison and its construction partners to complete several critical site preparation activities. That includes substantial completion of site clearing activities, advancement of schedule-sensitive site civil works, and the establishment of construction management facilities.

Preparation activities also involved the installation and commissioning of temporary construction camp facilities, which significantly increases the accommodation capacity of the Wheeler River property to nearly 400 people and allows a ramp-up in the on-site workforce.

“Completing the site-preparation activities needed to ramp up our on-site workforce and achieve a full-scale rate of construction is an important initial milestone for the Phoenix project,” said President and CEO David Cates in a media release issued Tuesday.

“Construction activity is expected to accelerate through the remainder of the summer months with the commencement of a second shift, which means seasonally sensitive civil and other construction work can continue virtually 24-hours a day in support of the completion of our key first-year construction milestones – including concrete pours of the foundations for the process plant and main power transformer, installation of the freeze wall, as well as earth works for the airstrip and on-site power distribution.”

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The release notes achieving these early results demonstrates the readiness and commitment of Denison and its construction partners as they advance the project to become Canada’s first new large-scale uranium mine since Cigar Lake.

Meanwhile, aggregate production required for various site civil purposes continues at a nearby quarry, and the concrete batch plant has been mobilized to site. Schedule-critical concrete-related activities for the substation and the main process plant foundations are currently expected to commence in August.

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derek.cornet@pattisonmedia.com

by Derek Cornet

Full scale construction to commence at Wheeler River

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