valley. This gap was closed beginning in late 1936. It was completed and opened to traffic in 1938, bringing Highway27 to its peak length of . In the mid-1950s, the Toronto Bypass was constructed between Highway 2A and the Queen Elizabeth Way (QEW), widening Highway27 to a four lane freeway in the process. This section was reconstructed again starting in 1968 and continuing until the early 1970s to turn it into a twelve-lane collector-express system. The junction with the QEW was built over and required the construction of 19 bridges and the equivalent of of two lane roadway. The junction with Highway401 sprawls over and required the construction of 28bridges and the equivalent of of two lane roadway, the largest interchange in Canada. The former was opened to traffic on November14, 1969, while the latter required several more years of construction staging, fully opening on December4, 1971 (though portions were opened in the weeks prior to that), just prior to the renumbering of Highway27 as Highway427. The rest of the route was rebuilt prior to the completion of these interchanges. The isolated section of Highway27 following Browns Line from south of the QEW to Lake Shore Boulevard (then Highway 2) was subsequently decommissioned. On June21, 1968, a new bypass north of Schomberg opened. Originally, northbound traffic had to turn east at Highway9 then north at Leonard Road; a smooth curve is visible at this latter intersection, though it now forms the driveways of several residences. The new bypass made Highway27 a through route at Highway9. In 1982, the section between Waverley and Penetanguishene was renumbered as an extension of Highway93. The remainder of the route, from Eglinton Avenue north to Waverley, was decommissioned on January 1, 1998. Within the City of Toronto it is locally maintained, and still known as Highway27; a proposal to rename it to "Etobicoke Drive" was rejected. North of Toronto, it is known as York Regional Road27 and Simcoe County Road27, depending on the jurisdiction. Major intersections See also Cancelled expressways in Toronto References Toronto highways 027