Shaft 3 (Town of Red Lake)

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This is the shaft #3 of the red lake gold mine which is 100% owned by Goldcorp. In 2003, Cementation was contracted to design and sink the No. 3 Shaft, and design the associated surface plant infrastructure. The shaft is sunk 2179 m from surface with a diameter of 6.55 m.

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 4 m and two raises at a diameter of 5.52 m for a total of 1945 m. The two raises with diameters of 5.52 m were completed in-line for a total length of 1010 m. This project set a record for the longest, largest diameter single pass raise bored in the Canadian Shield at 694 m long and 5.52m in diameter.