Visit T errafix Geosynthetics online at www.terrafixgeo.com Canada ’ s leader of complete geosynthetic solutions Challenge Highway 401 was being widened to six lanes between Port Hope and Cobourg. At the intersection of Gages Creek, it was necessary to accommodate the existing concrete arched culvert. An embankment up to 11 m high would need to be constructed with a varied slope of 38° to 45° to suit the complex site topographical condi

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