Coquitlam UV Disinfection Plant

Kenaidan Contracting Ltd.
Coquitlam, BC

JJM Construction Ltd. performed excavation, shoring and site servicing activities for a new UV Disinfection Plant in the Coquitlam Watershed, undertaken for Metro Vancouver.

The scope of work included preparation of spoil disposal areas; excavation, hauling and placing +/- 100,000m³ of spoil; shoring of the excavation site; placement of granular backfill material around the new infrastructure; removing existing utilities; installation of new site services and utilities; restoration of the spoil disposal sites; and architectural finishing work on the retaining structure.

JJM worked with GeoPacific Consultants Ltd. and Southwest Contracting Ltd. to design and build a retaining structure up to 25m in depth, consisting of a shotcrete and soil anchor wall combined with a secant pile wall installation at key locations. The work was carried out in an environmentally sensitive watershed and while protecting the existing water distribution system infrastructure.

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