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The Prince Edward Viaduct, often simply called the Bloor Viaduct, connects Bloor Street with Danforth Avenue 40 metres above the Don Valley. R.C. Harris, then Toronto's public works commissioner, added a second deck to the bridge for a subway - though the Bloor-Danforth line wouldn't be built for decades.

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A footpath across the Don Valley in 1908, where the Prince Edward Viaduct would be built.City of Toronto Archives

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The Prince Edward Viaduct (better known as the Bloor Viaduct) under construction Dec. 31, 1916.City of Toronto Archives

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Track construction was underway for the Prince Edward (Bloor) Viaduct July 23, 1918.City of Toronto Archives

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The Don track section of the Prince Edward Viaduct (better known as the Bloor Viaduct) was under construction July 31, 1918.City of Toronto Archives

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A crowd gathers for the opening of the Don section of the Prince Edward Viaduct Oct. 18, 1918. The day after, The Globe reported the Spanish flu prevented the designing engineer from making an appearance. Likewise, the speeches were kept brief.City of Toronto Archives/The Globe and Mail

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People cross the Don Valley portion of the Bloor Viaduct on its opening day, Oct. 18, 1918. The entire system opened 1919.City of Toronto Archives

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A map of the Bloor Street Viaduct route from December, 1918.City of Toronto Archives

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The Prince Edward Viaduct looking east to Broadview Avenue, circa 1920.City of Toronto Archives

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The Don River and Bloor Street Viaduct, sometime before 1940.City of Toronto Archives

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View of the Bloor Street Viaduct from above taken December, 1960.Hunting Survey Corp.

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Aerial view of the Don Valley looking south in October, 1962, with the Prince Edward Viaduct at the top of the photo.Hunting Survey Corp.

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View of traffic flowing on the Don Valley Parkway and under the Prince Edward Viaduct (centre) on June 3, 1988.John McNeill /The Globe and Mail

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Construction on the "Luminous Veil", a suicide barrier added to the Prince Edward Viaduct, was completed in 2003.Patti Gower/The Globe and Mail

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Matthew Perlanski approaches the Bloor Street Viaduct while canoeing down the Don River during the Paddle the Don event on May 6, 2012.Jennifer Roberts for The Globe and Mail

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