Mammoet mobile cranes to assist in Montreal Olympic stadium renovation

Mammoet received the contract to support Groupe Construction Pomerleau-Canam (GCPC) with the renovation of the new roof on Montreal's Olympic stadium. 

GCPC has been entrusted with the task of replacing the existing roof with a new fixed structure, which will have transparent glass to allow natural light to fill the stadium — a much needed upgrade from the decades old design. 

Mammoet provides support for the project 

Mammoet, with GCPC's other partners, will provide mobile cranes to support demolishing the old roof then lift and install the new canopy.

Much of this operation will be managed through Mammoet's Canada East subsidiary, which employs close to 500 heavy lifting and transport personnel across Ontario and Quebec. Significant numbers of its operational workforce and crane equipment fleet operators are already on site working to remove the outgoing roof panels. 

The new roof will be built inside the stadium on temporary supports. Once complete, Mammoet will use its Mega Jack 5200 system to lift the structure 50 metres in the air and slide it into place. The Mega Jack is a large jacking system that uses beams loaded at ground level for maximum support. Six Mega Jack towers will be used to perform the lift alongside strand jacks to stabilize the roof as it's raised.

Mammoet has also designed special final adjustment devices to sit on the top of each lifting tower. Taking the form of miniature skidding tracks, these devices allow precision positioning of the roof once it is at the required height.

The roof will stay raised on the jacking systems for roughly two months to allow final installation work to happen, like attaching cables to the stadium's famous 550-foot inclined tower called La Tour de Montréal.

Mammoet celebrates custom engineering solutions 

Justin Hope, project manager at Mammoet said:

"We are thrilled that Mammoet can play a key role in the renovation of this iconic stadium. We lift heavy objects all the time, but making sure that our solution aligns with how the roof will be finally connected adds a unique dimension. This is why we came up with a custom engineering solution to perform the job."

Serge Néron, deputy project director at GCPC said:

"When seeking a partner to assist us with the lifting of the roof, we knew that we could benefit from Mammoet's experience and engineering. Throughout the planning phase, they have demonstrated their expertise, coordinating a bespoke solution to get the new structure lifted, positioned, and ready for installation."