thousands of streets in Canada were named Centennial during the giddy year of 1967 (or thereabouts) as we celebrated our 100th birthday.
if you look closely at this sign you can just about make out the faded 'Orillia' at the bottom. the design at the top is the sun over a lake. Orillia is known as the Sunshine City. (Orillia was used as the fictional town of Mariposa in Stephen Leacock's Sunshine Sketches of a Little Town, an amusing little book)
here is a lovely Google view of Centennial Drive and Lake Couchiching in winter
third in a series on street signs for signs,signs