Diavik

The Diavik Diamonds Project is located 300 kilometers northeast of Yellowknife on the East Island of Lac de Gras, Northwest Territories. The mine is expected to cost $1.4 Billion. Construction commenced in 2000 and production is scheduled to begin in 2003. The project is expected to support mining for about 20 years.

Adco was initially contracted to design and build a fuel-pumping module for the project engineer, Nishi Khon/SNC-Lavalin ("NKSL"). Design and fabrication of the fuel-pumping module commenced in 1999 and was completed in 2000 for delivery on the 2000 ice road.

Adco started the installation of the Standby Generators in Early May. The Standby Generators will supply power throughout the Mine site until fall 2002. Once the permanent Powerhouse is fully commissioned, the standby generators will be only used as a backup power source.

The Boiler House construction began on July 27, 2001. The boiler house distributes heat through the Utilidors to the Sewer Treatment plant, Powerhouse, Maintenance Complex, Accommodations Complex, and Processing Plant. Due to some adverse conditions and scheduling delays the boilers were fired for the first time November 11, 2001.

Adco was the main contractor involved with the installation of the Utilidor Modules. The primary use of the Utilidors is to provide means of travel for mine operators, and a raceway for heat, electrical and mechanical systems throughout the South Camp.

In the summer of 2001, Adco was racing against time to complete the electrical and mechanical installations at the South Tank Farm before the winter conditions arrived. Due to a late summer we at times were having to overcome such conditions as -50 weather and 70/km/hr wind.

Adco finished 2001 by completing the heating loop and hi-bay lighting, overhead cranes and the architectural work in the Powerhouse.

In 2002 Adco will be working on the heating loop and numerous electrical projects, and architectural work in the Maintenance Complex.

Due to our performance on site to date, Adco North has been awarded additional projects on site in 2002, which include the construction of the North Inlet dewatering barge, Emergency Vehicle Warming Shed, Utilidor Architectural packages, Security & Communication rough in contracts and numerous fire alarm packages.

 

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Diavik: 64º N 110º W

The Diavik Diamonds Project will mine four diamond deposits, commonly referred to as kimberlite pipes. The deposits were discovered in 1994-1995, just offshore of a 20 square kilometer island in Lac de Gras, referred to as the east island.

Lac de Gras is about 100 km north of the tree line in the arctic tundra region. The gently rolling tundra is made up of the numerous lakes, bedrock outcrops and glacially deposited boulder fields, till and eskers. There is very little soil and the area is within the continuous permafrost zone. Project Capital Cost

Mine Life: 20 years

Operations Workforce: 400 ±50

Production Start: 1st Half, 2003

Annual Diamond Production: peaks at just over 6 million carats

Average Diamond Value: US$63/carat (2000 valuation)