Project Details

Location: Gold Mine North Cochrane District, Ontario

Time Frame: April 2023 - October 2024

Project Value: $35,000,000

Contract Type: Unit Rate

Services Rendered: Mine Development

Project Summary

Morgan was hired to construct a multi-year tailings dam raise at a major open pit gold mine in Northern Ontario. This project involves constructing a cross section of dam that includes various filter zones, large fills, and the supply and install of a geomembrane liner, to raise the tailings dam by 9 m over a 4 km section. The purpose of the project is to increase storage capacity of the main tailings facility, ensuring mining can continue uninterrupted into the future.

Project Scope

Tailings Dam Raise (296.0m – 301.0m)

  • Completion of 4 km of a 5 m dam raise utilizing various rockfill and chimney drain materials, and installation of BGM liner.

  • Construction of tailings pond spillway.

  • Load, haul, and place upstream and downstream Coarse Rockfill material (267,384 m3).

  • Load, haul, and place upstream and downstream Fine Rockfill material (159,238 m3).

  • Load, haul, and place chimney drain materials utilizing a drag box:

    • Till material (28,790 m3)

    • Fine Filter material (40,415 m3)

    • Coarse Filter material (40,463 m3)

  • Load, haul, and place slope cover and anchor berm materials (26,716 m3).

  • Installation of Bituminous Geomembrane liner material (59,967 m2).

  • Management of quality control and testing requirements on all material placement activities.

Tailings Dam Raise (301.0m – 305.0m)

  • To be completed in 2024.


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