Marine transportation safety investigation M18C0328

The TSB has completed this investigation. The report was published on 16 August 2019.

Table of contents

    Possible bottom contact
    Bulk carrier Maccoa
    Kahnawake, Quebec

    View final report

    The occurrence

    On , the bulk carrier Maccoa was forced to undertake evasive maneuvers to avoid a collision with a Canadian Pacific Railway bridge near Kahnawake, Quebec, due to the failure of the bridge span to rise. A presumed bottom contact was reported while the vessel was maneuvering.

    Media materials

    News release

    2019-08-16

    Investigation report: November 2018 possible bottom contact of the bulk carrier Maccoa near Kahnawake, Quebec
    Read the news release

    Investigation information

    Map showing the location of the occurrence

    M18C0328

    Possible bottom contact
    Bulk carrier Maccoa
    Kahnawake, Quebec

      Download high-resolution photos from the TSB Flickr page.

    Class of investigation

    This is a class 4 investigation. These investigations are limited in scope, and while the final reports may contain limited analysis, they do not contain findings or recommendations. Class 4 investigations are generally completed within 220 days. For more information, see the Policy on Occurrence Classification.

    TSB investigation process

    There are 3 phases to a TSB investigation

    1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
    2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
    3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

    For more information, see our Investigation process page.

    The TSB is an independent agency that investigates air, marine, pipeline, and rail transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.