Monday 3rd December 1917

The Quebec Bridge, the world’s largest cantilever, 1800ft between the piers and 3239 ft overall, over the St Lawrence River, was opened to traffic, at a cost of 87 lives and $Can 22,500,000. The bridge accommodates three highway lanes (none until 1929, one until 1949, two until 1993), one rail line (two until 1949), and a pedestrian walkway (originally two); at one time it also carried a streetcar line. It was declared a historic monument in 1987 by the Canadian and American Society of Civil Engineers, and on January 24, 1996, the bridge was declared a National Historic Site of Canada.