OTTAWA — A concrete forming company based in Manotick, south of Ottawa, has been convicted and fined after a worker suffered critical injuries while on the job pouring concrete during construction of a home.
Manotick Concrete Inc. was convicted in an Ottawa court March 29 for a violation of the Construction Projects Regulation (Ontario Regulation 213/91) committed in August 2016.
A Ministry of Labour (MOL) media statement said the worker was operating the hose of a concrete pumper truck pouring concrete into wall forms while standing on an upper level of scaffolding at a jobsite in Greely, Ont.
The pumper truck was set up with all four outriggers fully extended and with steel plates under the base of the outriggers.
The ground under the pump truck was partially covered in dark brown mulch and consisted of previously excavated soil.
While pouring the concrete required for the foundation, one of the pumper truck’s outrigger hydraulic legs sunk about three feet into the ground, tipping the truck and moving the boom arm of the truck suddenly into a wall, injuring the worker who was operating the hose.
An MOL inspector and engineer called to the scene determined that the primary factor that caused the pumper truck to overturn was that it had been improperly set up — specifically, the support area under the outrigger was too small.
The support area is the footprint of the solid material placed under the outrigger to distribute the load over a greater surface area to avoid the outrigger sinking into the ground, the statement explained.
The pumper truck was not set up according to the specifications in its operator’s manual. The court determined Manotick Concrete failed to ensure the outrigger of the concrete pumper truck was sufficiently supported as required by its operating manual.
This was contrary to the Occupational Health and Safety Act and a violation of section 93(3) of the Construction Projects Regulation which states, “All vehicles, machines, tools and equipment shall be used in accordance with any operating manuals issued by the manufacturers.”
Following a guilty plea, the company was fined $70,000.