Marine Safety Information Letter M16C0146

200 Promenade du Portage
4th Floor
Gatineau, Quebec
K1A 1K8


Mayor Laurent Thibault
Municipality of Sainte-Rose-du-Nord
126 de la Descente des Femmes Street
Sainte-Rose-du-Nord, QC
G0V 1T0

Mr. Mayor:

Subject: Marine Safety Information Letter no. 11/16 – Collapse of the platform and gangway

On September 7, 2016, at Sainte-Rose-du-Nord, Quebec, the platform and access gangway connecting the dock and the floating pontoons collapsed while passengers were circulating on or near these installations (TSB Occurrence M16C0146).

Around 1130 EDT, the passenger vessel Fjord Saguenay II docked at the Sainte-Rose-du-Nord marina. The ship's chief officer authorized passengers to begin boarding; i.e. walking onto the platform, descending the gangway to the pontoon and reaching the dock. Around 1140, the platform detached from the dock, taking the gangway with it and dropping about 8 metres. Several passengers were injured during this incident.

The platform that connected the gangway to the dock was bolted using lag screws to a piece of treated wood, which was itself attached to the dock with bolts. The platform and the gangway were installed in the spring of 2011. The gangway was removed at the end of every tourist season, while the platform remained in place all year-round.

According to the information gathered during the TSB investigation, the piece of treated wood holding the lag screws was in poor condition and, as a result, the lag screws tore free from their foundation. Ever since the initial installation, there have been no maintenance or periodic inspections of this platform or of the attachment system. Our investigation was not able to identify any existing municipal or provincial regulation referring to the maintenance or periodic inspection of this type of installation during its life cycle.

This information is provided so that you can take whatever measures are considered appropriate in the circumstances. The TSB would appreciate being advised of any such actions. Moreover, an investigator may follow up with you at a later date.

Given that the safety issues associated with this incident were brought to your attention, an investigation report will not be published.

Yours sincerely,

Marc-André Poisson
Director of Investigations – Marine


Federation of Canadian Municipalities
Union des municipalités du Québec
Fédération québécoise des municipalités
Ordre des ingénieurs du Québec

General information

TSB Occurrence Number: M16C0146

TSB contact persons:

Captain Steven D. Neatt
Regional Senior Investigator – Nautical, Central Region
Transportation Safety Board of Canada
Tel.: 418-648-7420
Fax: 418-648-3656

Mr. Bernard Breton
Manager, Regional Operations - Central
Transportation Safety Board of Canada
Tel.: 418-648-7419
Fax: 418-648-3656


Mr. Clark Somerville
Federation of Canadian Municipalities
24 Clarence Street
Ottawa, ON
K1N 5P3

Mr. Bernard Sevigny
Union des municipalités du Québec
680 Sherbrooke Street West
Office 680
Montréal, QC
H3A 2M7

Mr. Richard Lehoux
Fédération québécoise des municipalités
1134 Grande Allée West
Office RC 01
Québec, QC
G1S 1E5

Ms. Kathy Baig, Eng.
Ordre des ingénieurs du Québec
Windsor Station, Office 350
1100 Canadiens-de-Montréal Avenue
Montréal, QC
H3B 2S2