McArthur River Project

Boomerang Discharge Upgrade (2014)

Commenced: 2014
Completed: 2014
Client: Cameco Corporation

To prevent erosion and the deposition of materials into Boomerang Lake, a rock lined conveyance channel was designed by the Client to transfer treated mine effluent from an upstream dam location to a new precast outfall structure 420 m downstream at Read Creek. PBN Nuna Contracting Joint Venture (PBN Nuna JV), provided construction services under strict environmental monitoring. Scope elements involved: clearing, peat removal, common fill installation, channel construction to strict design tolerances, geotextile, rip rap and granular placement, installation of a precast outfall structure, and commissioning. With a small workforce and fleet, PBN Nuna JV completed the project on schedule and with a solid safety record.

138 kV Substation Facility No. 2 // EPCM Contractor: Hatch (2014)

Commenced: 2014
Completed: 2014

A new electrical substation and backup diesel generation plant was constructed to support the ongoing expansion of the mine. PBN Nuna JV’s scope included: supply and installation of a firewater line (pipe installation and civil work – over 800 m of insulated HDPE 6” and 8” DR11 pipe); construction of firewater huts (3x small light gauge steel buildings); fencing and barriers; supply and installation of a counterpoise (800 m of guywire excavated and backfilled); and miscellaneous site services including material receiving support, site laydown preparation, and carpentry work around camp.