Musselwhite Mine

Site Services Support (2024-Present)

Commenced: 2024
Completed: In Progress
Client: Newmont Goldcorp

Following completion of our dyke raise scopes at the end of 2024, BBH Nuna LP – a partnership between Kingfisher Lake First Nation, Wunnumin Lake First Nation, and Nuna – remains on site to perform ongoing site services support, providing grader operators to assist with mine site road and airstrip winter maintenance requirements.

Dyke Raise (2022-2024)

Commenced: 2022
Completed: 2024
Client: Newmont Goldcorp

In 2022, BBH Nuna LP began work on a dyke raise contract at Musselwhite. Our scope of work, completed over the course of two construction seasons, consisted of constructing 435 m length of the dyke raise, installing conduits for tailings discharge, constructing erosion control drainage chutes around the tailings storage facility (TSF) without disrupting the surrounding water stream, hauling waste rock from the underground portal to the waste dump, constructing a finger berm to manage the flow of water inside the TSF, completing channel work on Barge Road to improve the flow of water, and installing berm raises around the TSF to make it winter-ready.

In August 2024, BBH Nuna was awarded Musselwhite’s 2024 dyke raise program, with ancillary scopes including existing dyke preparation and survey. A crew of 15 undertook the scope, completed at the end of November 2024. The work scope consisted of two dyke raises on the perimeter of the site’s tailings storage facility. The first involved the construction of a 1,153 m long by 7 m high by 2 m wide discharge dyke raise, which included the sourcing, loading, hauling, dumping, and compacting of 43,050 m³ of sand and gravel material from the site borrow pit area, located 3 to 6 km from the construction zone. The second main component was construction of a 900 m long by 7 m wide by 2 m high separation dyke raise, which also included a transition zone area 100 m wide by 200 m long by 1 m high. The separation dyke raise and transition zone were constructed with 50,600 m³ of non-acid generating (NAG) rock sourced from the site waste dump, approximately 3 km from the construction zone. Other small scopes of work such as culvert upgrades, safety berm creation, and access road construction were completed in the early stages of the project, successful in all areas including safety, quality, and production goals.

Waste Haul (2024)

Commenced: 2024
Completed: 2024
Client: Newmont Goldcorp

In June 2024, BBH Nuna LP was awarded a contract to load, haul, and dump approximately 150,000 BCM of underground mine waste rock from the mine portal to the waste rock stockpile on site. The crew consisted of an excavator, dozer, and 40-tonne rock trucks and aimed to achieve a daily production of 2,500 BCM waste rock moved over the duration of the 3-month contract.

Site Surface Support & Crushing (2019-2022)

Commenced: 2019
Completed: 2022
Client: Newmont Goldcorp

In August 2019, Nuna was awarded a surface support contract at Musselwhite involving the organization and relocation of several existing and ongoing ore stockpiles. The surface hauling portion of this contract involved loading ore into rigid frame haul trucks and transporting the ore approximately 2 km to permanent ore storage facilities. Nuna’s working equipment fleet primarily consisted of a Caterpillar 988 loader, 3 Caterpillar 773 rigid frame rock trucks, and a Caterpillar D8 dozer. In 2021, Nuna mobilized crushing and screening equipment to the site for a two-year crushing program in which we crushed and processed 30,000 tonnes of screened sand and 30,000 tonnes of gravel and roadbed material at the site’s aggregate pit before demobilizing the crusher at the end of 2022.