ACCELERATING HIGHWAY BRIDGE DEMOLITIONAN INNOVATIVE APPROACH

摘要

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