Train derailment in southwest Calgary contained; no leaks reported
Thirteen railcars carrying lumber, plywood, propane and argon derailed Monday into a pond near Priddis Slough. Track repairs are complete and rail traffic has reopened.
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A Canadian Pacific Kansas City freight train that derailed Monday morning into a pond in southwest Calgary has been secured with no reported leaks, and rail traffic in the corridor has reopened.
At 7:50 a.m. Monday in the 17000 block of Sheriff King Street S.W., thirteen railcars derailed on the Aldersyde Subdivision. Eight cars carried dangerous goods — seven containing liquefied petroleum and one containing refrigerated liquid argon. The other cars carried construction materials including lumber and plywood.
The Transportation Safety Board of Canada confirmed there were no reported leaks of dangerous goods. Two TSB investigators from the Calgary office deployed to the scene to assess the occurrence and determine whether a full investigation is warranted.
CPKC crews worked overnight repositioning the involved railcars, and track repairs and safety inspections were completed Tuesday. The corridor reopened to rail traffic in the late morning. Crews will continue unloading and removing the affected railcars this week.
The City of Calgary is conducting water quality testing on the Priddis Slough — a provincial wetland that is part of the city's stormwater system. As of Tuesday, the city reported no concerns for significant impact to the wetland, as materials within the rail cars remain within shipping vessels or containers and have not contacted the environment. A boom has been placed in the slough to contain wood debris. Roads along Sheriff King Street S.W. remain closed in both directions between Silverton Way S.W. and Silverado Boulevard S.W. while cleanup work continues.
The facts
What derailed in Calgary on Monday?
A Canadian Pacific Kansas City freight train with thirteen railcars derailed at 7:50 a.m. on July 14, 2026 in the 17000 block of Sheriff King Street S.W. in southwest Calgary. Eight cars carried dangerous goods — seven with liquefied petroleum and one with refrigerated liquid argon — while five cars carried lumber and plywood.
Were there any leaks from the dangerous goods?
The Transportation Safety Board of Canada confirmed there were no reported leaks of dangerous goods. Materials within the railcars remained within shipping vessels or containers and have not contacted the environment.
When did rail traffic reopen?
Track repairs and safety inspections were completed on Tuesday, July 15, 2026, and the corridor reopened to rail traffic in the late morning.
Which roads are closed?
Roads along Sheriff King Street S.W. remain closed in both directions between Silverton Way S.W. and Silverado Boulevard S.W. while cleanup work continues.
