In 2006, Dumas began work at Young-Davidson Mine, near Matachewan, Ontario. Owned and operated by Alamos Gold, the mine required rehabilitation, raising, and large-scale development.
Dumas undertook dewatering and rehabilitation of the shaft, replacement of furnishings, installation of services, hoist installation, and headframe rehabilitation. Concurrent lateral development included portal construction, ventilation raises, and excavation to ore zones. Dumas crews consistently achieved targets of 2,000 metres of annual development, with peak monthly advances of 450 metres. Over the course of the project, Dumas completed more than 10,000 metres of ramp development and 17 Alimak raises.
Scope of Work
- Shaft dewatering, rehabilitation, and replacement of timber with steel sets
- Ramp development exceeding 10,000 metres
- Lateral development averaging 2,000 metres annually
- Ventilation raises and ore zone development
- 17 Alimak raises completed
- Surface and underground construction projects including headframe rehabilitation
