The Regional Municipality of York used a unique approach to construction staging for a new interchange at Highway 404 and Elgin Mills Road, which included the demolition of the existing two-span post-tensioned concrete bridge structure over the expressway within a single 12-hour night-time highway closure. A highway closure was arranged to perform the bridge demolition from Saturday, December 13, 2003 at 10:00 p.m. to Sunday, December 14, 2003 at 10:00 a.m. so that the bridge could be demolished. As a result, traffic on Elgin Mills Road and on Highway 404 was impacted for only twelve hours of the entire two-year construction period.
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