Cementation is very proud to be recognized by Hecla Mining Company as their preferred partner for the design and development of the #4 Shaft Winze at the Lucky Friday Mine. Our initial involvement was to work with the Hecla group in the prefeasibility costing and scheduling along with preliminary design work for their proposed internal shaft. The design calls for construction of an 18 foot diameter circular concrete shaft to be sunk from the 4700 Level down to the 8000 level horizon. The plan also calls for underground hoistroom excavations and shaft facility installations. The initial work carried out by Cementation at the Lucky Friday property includes alimak raising and ore pass and dump construction.
