STRABAG wins $120 million contract for Toronto wastewater pumping station

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Ontario Construction News staff writer

The Canadian subsidiary of the STRABAG Group has been awarded a contract by the City of Toronto for the Ashbridges Bay Treatment Plant Integrated Pumping Station.

The company will build deep concrete shafts and chambers and feeder tunnels for the new Integrated Pumping Station at a cost of almost $120 million.

The pumping station allows the underground transport of wastewater to the Ashbridges Bay Wastewater Treatment Plant.

The main part of the project involves two large-scale shafts: one 68 m deep with a diameter of 27 m and another 27 m deep with a diameter of 32 m. Including five smaller shafts, this results in a total of 153 m of shafts to be built. The shafts will be linked to feeder tunnels with a total length of 445 m, with a rock tunnel section as well as a parallel pressure pipe in an open cut close to the surface.

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