Leeville Hoisting & Underground Conveying System
The existing production ore hoisting system was used to hoist ore from the underground workings to the surface. Atkinson converted this system into a hoisting and conveyance system to add the capability to convey backfill material from the surface to the underground stroage bins.
Atkinson's scope of work included removal and repair of existing structures and systems that were planned for reuse in the aggregate hoisting system. Atkinson constructed a 200-ton bin, excavated a wood cribbed raise, slashed the raise to expand it to the final dimensions of 11 feet by 10.5 feet, installed a dump chute in the raise, and installed a conveyance system from the dump chute to the storage bin.