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Snap Lake Diamond Mine

Located 220 kilometres northeast of Yellowknife, Northwest Territories

Project Scope

Year: 2004–2009, 2012
Client: De Beers Canada
Project Scope Performed Under: Denesoline/Nuna Joint Venture, a partnership with Denesoline Corporation Ltd. (Lutsel K’e Dene First Nation)

 

Earthworks

Denesoline/Nuna Joint Venture provided construction of a water management ditch approximately 280 metres long and up to 15 metres deep. Golder Associates designed the ditch to contain run-off water for testing and treatment prior to discharge into the environment. DNJV mobilized construction crews and equipment in February and demobilized in late March and early April, with the exception of a few pieces of equipment required for the summer work. DNJV’s work entailed drilling, blasting, loading, and hauling.

DNJV also provided earthmoving and construction services to develop site infrastructure, which included the construction of facilities pads, a fuel tank farm, pipe benches, 6 kilometres of all-weather site roads, a 3,500-foot airstrip with a 1,500-foot extension, two lined processed kimberlite containment dams, and other earthworks. The project required completion prior to freshet, which was met. DNJV also provided site services.

General

DNJV provided supervision and site control of quarry blasting for the production of crush and construction rock. This included supervising breakaway drilling and blasting, as well as supporting the work with a 345 excavator to place blast mats, prepare benches, and load material. The project was carried out through the spring and summer, and it was completed in September 2012. The remaining equipment was demobilized over the 2013 winter road.

Ice Infrastructure

DNJV provided construction and maintenance of a winter site access road.