1909, March 17 - A train runs out of control into the Canadian Pacific Windsor Street station in Montreal. (track 7) A broken spring hanger on locomotive no. 2102 caused it to lurch and a driving wheel struck a washout plug. The escaping steam scalded the crew who were forced off the locomotive. The train brake was applied by a brakeman but it hit the stop blocks at around 25 mph. There were six fatalities.

1974, March 17 - A CP Rail freight train hits a rock slide and derails at Spences Bridge, BC killing two crew members. This lead to the eventual installation of ditch lights on Canadian trains.

1978, March 19 - First run of the Inukshuk Express which runs between Hay River and Pine Point for the duration of the 1978 Arctic Winter Games. This was the first passenger train to run into the Northwest Territories.

1855, March 19 - The vehicular suspension bridge across the Niagara Gorge (built in 1848) is strengthened for the passage of railway trains. The original wooden trusses were replaced by steel in 1880.

1896, March 20 - The Grand Trunk Railway obtains control of the Central Vermont Railway which retained its corporate identity.

1985, March 22 - Toronto Transit Commission opens the Scarborough rapid transit line using linear induction technology.

1999, March 22 - RaiLink Ltd.takes over operation of the CN Coronado, Bonnyville, and Lac La Biche subdivisions, northeast of Edmonton. The line extends from St. Paul Junction, immediately north of Edmonton, to Boyle and northeast to Grande Centre and Elk Point. It also connects with RaiLink's existing Lakeland and Waterways line at Boyle.