Search Results: 'Mott MacDonald'

Under the river
03 November, 2015
Tunnelling under the Fraser River in the Lower Mainland, British Columbia, is no easy task. That is what the Port Mann Main Water Supply Tunnel project team has learned over the past three years. Stephanie Fekete and Andrew McGlenn of McMillen Jacobs Associates discuss the recent tunnel completion and summarize the demands that were required in order to make this drive successful

Tied together
24 June, 2015
Tie-in works of a tunnel twinning project in northern British Columbia required drill and blast excavation of access tunnels leading to interconnection tie-in chambers that were excavated in hard rock to within 3m of the existing pressurised steel lined penstock. Mark Kellaway and Dave Young of Hatch and Hatch Mott Macdonald and Gordon Revey of Revey Associates, Inc., explains the geometrically complex excavation undertaken during a limited shutdown period when the penstocks were depressurized.

TAC Review
30 January, 2015
The Tunnelling Association of Canada’s regional directors give their annual reports on the industry.