Shaft
The Red Lake Gold Mine is located in Northwestern Ontario and is one of the world’s richest gold mines in terms of grade. Owned and operated by Goldcorp Inc., the mine is comprised of the Red Lake Complex and the Campbell Complex.

In 2003, Cementation secured the contract to design and sink the No. 3 Shaft, and design the associated surface plant infrastructure. Merging engineering and construction capabilities, the work was carried out as a design-build project. The No. 3 Shaft, a key element in the mine’s expansion, was sunk 2,179m from surface with a diameter of 6.55m. Upon completion of the shaft, Cementation was retained to operate the shaft facilities.

Raise Boring
Concurrent with the sinking project, Cementation was awarded and started the raise boring of the ventilation circuit for the new No. 3 Shaft in 2005. This project included the drilling of two raises at a diameter of 4m and two raises at a diameter of 5.52m for a total of 1,945m. The two raises with diameters of 5.52m were completed in-line for a total length of 1,010m. This project set a record for the longest, largest diameter single pass raise bored in the Canadian Shield at 694m long, 5.52m in diameter and completed without any injuries.