Strabag has secured the EUR54 million (CAD 79 million) contract to build the Mid-Halton Outfall Tunnel in Canada. The project centres on the excavation of two 60 m deep shafts and a 6.3 km rock-bored tunnel that is designed to carry treated effluent water from the water treatment plant in Oakville into Lake Ontario. The Mid-Halton Outfall Tunnel will consist of two reaches: The onshore reach will span 4.1 km, while another, 2.2 km reach will be built offshore, ending in a diffuser array beneath Lake Ontario. A TBM with an excavation diameter of 3.6 m will drill through mainly layers of shale and limestone. Construction is set to begin in mid-July 2014 and is expected to be completed within 39 months. Click here and visit http://www.hatchmott.com. 30/14
