Posts Tagged ‘Transportation Safety Board of Canada’

Canadian Safety Board Issues Recommendations Following CN River Tunnel Derailment

November 18, 2020

The Transportation Safety Board of Canada has issued four safety advisory letters in connection with its investigation of a June 28, 2019, derailment of a Canadian National train in the St. Clair River tunnel connecting Sarnia, Ontario, and Port Huron, Michigan.

The derailment resulted in 46 cars of the 140 cars in the train leaving the tracks.

The TSB said first car to derail appeared to be the 53rd car, a bathtub gondola, in which the A-end appears to have collapsed.

An analysis by the TSB and U.S. National Transportation Safety Board determined the initial point of derailment occurred in Canada.

Also derailing was a tank car loaded with sulphuric acid that saw most of its load of 12,000 gallons spilled in the tunnel.

TSB has asked Transport Canada to ensure that railroads have instructions in their emergency procedures on how to inspect a train carrying hazardous materials after a derailment in a tunnel. It noted that after the June 28 derailment, the the conductor left the locomotive to inspect the train following in accordance with CN rules.

However, he could not be reached by radio by other crew members to warn him that the tunnel’s toxic gas alarm had activated. The conductor was not injured.

TSB also asked Transport Canada and the U.S. Federal Railroad Administration of potentially defective bathtub gondolas and requested that those cars— particularly those used in scrap metal service —be inspected and repaired as needed.

This particularly pertains to bathtub gondolas built by Berwick Forge. There are an estimated 2,500 such cars in operation in North America.

Finally, the TSB said Transport Canada should ensure that all railroads have adequate practices in place to effectively manage train operating personnel.

CN Derailment Began in Canada

July 9, 2019

The derailment of a Canadian National train inside the St. Clair Tunnel started on the Canadian side of the border the Transportation Safety Board of Canada has concluded.

TSB will thus take the lead in investigating the June 28 derailment that closed the busy rail artery between Port Huron, Michigan, and Sarnia, Ontario, for several days and led to some CN trains detouring on Norfolk Southern and CSX between Toledo and Buffalo, New York.

The U.S. National Transportation Safety Board was also involved in the initial investigation of the derailment.

CN said 46 cars and a DPU derailed inside the tunnel with some of the cars spilling sulfuric acid.