Railway Investigation Report R05V0141

The Transportation Safety Board of Canada (TSB) investigated this occurrence for the purpose of advancing transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.

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Canadian National
Freight Train A47151-05
Mile 56.6, Squamish Subdivision
Garibaldi, British Columbia
05 August 2005


At approximately 0720 Pacific daylight time on 05 August 2005, Canadian National freight train A47151-05, proceeding northward from Squamish to Lillooet, British Columbia, derailed nine cars including one load of sodium hydroxide (UN 1824), also known as caustic soda, and eight empty cars at Mile 56.6 of the Squamish Subdivision near Garibaldi, British Columbia. Approximately 40 000 litres of the caustic soda spilled into the Cheakamus River, causing extensive environmental damage. There were no injuries.

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© Minister of Public Works and Government Services Canada 2007
   Cat. No. TU3-6/05-2E
   ISBN 978-0-662-46259-0