the Don Valley Parkway at a clover-leaf interchange. It was instead constructed as an elevated section that passes over Lake Shore Boulevard and at its eastern end forks into a flyover of the Don River mouth and a separate connector to the east. The section between the Parkway and Yonge Street was built eight lanes wide. Don Valley Parkway to Leslie Street Known as "Gardiner East", this segment was opened in July 1966 without ceremony. It ended just east of Leslie Street where eastbound traffic was forced to exit at an offramp descending to Lake Shore Boulevard (renamed from Keating Street) or a circular ramp to Leslie Street, while for westbound traffic entering the expressway there was a single lane onramp. The design left the eastern end open for a future connection with the proposed but never-built Scarborough Expressway, leaving this segment a spur route. Highway 427 to the Humber River This segment, built as part of the Queen Elizabeth Way by the Province of Ontario, was transferred to the City of Toronto in 1997, and designated as part of the Gardiner. The original QEW highway was built in the 1930s and connected to the Gardiner in the 1950s. This section of the QEW between the recently expanded Highway 27 (which would be renumbered as Highway 427 on December 4, 1971) and Lake Shore Boulevard was reconstructed in the late 1960s to 8-10 lanes which included a short collector-express system between Kipling Avenue and Royal York Road. The Humber River was the western border of the City of Toronto until the amalgamation of all Metropolitan Toronto municipalities into one Toronto. Naming On July 29, 1957, while still under construction, the Metro Toronto Roads and Traffic Committee, on the suggestion of Weston Mayor Harry Clark, (the committee chairman) renamed the Lakeshore Expressway to the F. G. Gardiner Freeway. Clark later suggested that the road had too many interchanges to be called a freeway, and amended the proposal to Gardiner Expressway. Metro Council approved the renaming in August 1957: From completion to the present By 1963, the first rooftop billboards along the Expressway were built, targeting the daily 40,000 to 60,000 motorists. Companies paid up to $3,000 per month to locate their billboard. Today, there are dozens of neon signs, billboards and video boards in the proximity of the Expressway, mostly in the sections between Roncesvalles Avenue to Spadina Avenue and east