Dumas has been responsible for all the lateral development required to prepare the mine’s longhole stopes for drilling and production activities. Dumas excavated approximately 2,800 meters per year of various sized development from 2015 to 2016. Development comprised of trackless and track drifting, sub level development and related slashing.
In addition, Dumas completed approximately 300 meters of vertical development consisting of equal portions of Alimak and open raising. Dumas had increased our crews and activities on site to meet renewed lateral development requirements before the mine closure announcement in 2017.
During our time at Dome, Dumas has completed many construction projects including multiple screening deck plants, multiple ore/waste chutes, rockbreaker installations as well as many shaft and material handling infrastructure work.