Lethbridge Viaduct

The Lethbridge Viaduct, or High Level Bridge, is a steel railway trestle over the Oldman River in Lethbridge, Alberta, built for the Canadian Pacific Railway from 1907 to 1909 to replace a longer, steeper, and more costly earlier route. Designed by the CPR’s bridge department and constructed under Assistant Chief Engineer John Edward Schwitzer, it used prefabricated steel and an on-site travelling crane to assemble its immense structure. At 1,623.860 metres long and 96 metres high, it remains Canada’s largest railway structure and the world’s largest bridge of its type, still in regular use and recognized as nationally significant.

Alberta · Canada