Project details

The Highland Valley Copper mine is Canada’s largest open pit copper mine and produces both copper and molybdenum concentrates.

CWA developed the project execution plan and performed the detailed civil, structural, mechanical, and electrical design for the relocation of primary crusher #4.

The project included:

  • The relocation of two 1,000-metre-long overland conveyors with an installed total power of 9,000 HP.
  • A new proportional feed transfer tower.
  • Multi-plate tunnels for conveyor underpasses for haul roads.
  • The relocation of existing haul roads and overhead power lines.
  • The design and detailing of primary crusher dumper hopper repairs in order to extend the operational lifespan of the crusher.
  • A new stand-alone electrical room.
  • A new 13.8-4.16kV substation.
  • Construction management support during shutdowns, including commissioning and lock-out authority.


CWA prepared the AACE Class III (-10%/+15%) capital cost estimate for the project and provided the detailed civil, structural, mechanical, and electrical design, specifications, and tender packages.

CWA also developed a detailed construction execution plan that was integrated into the mine operations in order to minimize shutdowns of key equipment and provided field support during construction and commissioning.