Boulevard was expanded to six lanes in the area. This created a pedestrian barrier to the lake shore for Parkdale neighbourhood residents to the north. Efforts made by community groups over the next 20 years to restore access to the lake shore, including plans to cover the section of the Expressway and railway line, did not come to fruition. A pedestrian bridge over Lake Shore Boulevard at the foot of Jameson Avenue was eventually built. Jameson Avenue, which had previously been a street of mansions, saw intense apartment building development after the building of the Expressway. The section between Humber River and Jameson Avenue was completed in 1958. The expressway, by then named the Gardiner Expressway, was officially opened by Gardiner and Ontario Premier Leslie Frost on August 8, 1958. When this section opened, it opened without guard-rails on the median dividing the different directions. Steel guard-rails and a 'glare shield' were approved for this section in 1965 at a cost of $200,000. Jameson Avenue to York Street The section between Jameson Avenue and Spadina Avenue was completed and opened on August 1, 1962 and the westbound lanes from York Street were opened on December 3, 1962. The eastbound lanes from Spadina to York opened in 1963. The elevated section starts from the north-east corner of the CNE. The route to the east of the CNE was modified to avoid passing over historic Old Fort York. This section was built wider to accommodate a possible interchange with the Highway 400 extension south to downtown, proposed by the Province of Ontario in 1956 and later cancelled. East of Fort York, the Gardiner was built entirely as an elevated route, through a predominantly industrial area, to the south of railway lands to reach downtown. The roadway was built directly overhead of Fleet Street (Fleet is now Lake Shore Boulevard West east of Bathurst but Fleet exists as parallel roadway on the north side from Bathurst to Strachan Avenue) through much of this section. The expressway off-ramp to York/Bay/Yonge Streets was developed as a two-lane eastbound 'finger' flying over Harbour Street, south of the main roadway, descending to Harbour Street with a circular off-ramp to York Street northbound, and it was nicknamed the "Hot Wheels Ramp". York Street to the Don Valley Parkway This segment was completed in 1964. In the original proposal, the elevated segment would descend to ground level and meet