Seymour-Capilano Twin Tunnels Project

RESOURCE: Renewable Energy

Procon handled the monitoring/maintenance of the tunnels dewatering system and ventilation system at the Seymour-Capilano Twin Tunnels Project in North Vancouver, British Columbia. The Seymour and Capilano watersheds supply up to 70% of the Lower Mainland’s drinking water. Construction of new water supply and treatment facilities for these water sources is underway in the Lower Seymour Conservation Reserve (LSCR) and at Capilano River Regional Park. Water from the Capilano Reservoir will be pumped through a 3.7-metre-diameter tunnel to the filtration plant in the LSCR. From here, the water will be filtered and disinfected, and returned to Capilano by gravity through a parallel tunnel of the same size. The twin tunnels will be approximately 7.1 kilometres long and 160-640 metres underground.