A shipping container at Midtown Park on Inverness exploded in April of 2013 when the valve of a barbecue propane tank was left on overnight. Repurposed shipping containers pose risks if not properly ventilated. Black Press file photo

Saanich explosion a reminder of shipping container dangers

Container doors flew from Midtown condo into Rutledge Park

The story of a 2013 explosion in Saanich is at the forefront of a WorkSafeBC campaign about the dangers posed by repurposed shipping containers.

At the centre of the campaign is a promotional safety video based on the shipping container explosion that rocked the construction site at the corner of Cloverdale and Inverness. The well-documented explosion blasted the steel doors off the container hinges, injured one on-site crew member, and was heard from as far away as Oak Bay.

At the time, the construction crew for the development (the Midtown Park condos) was using large shipping containers as offices and storage units. In one of the containers, the valve of a barbecue propane tank was accidentally left on over night. The propane tank drained out and turned the sealed container into a time bomb. The next morning an electrical spark from a pop machine ignited the gas in a major eruption.

The power of the explosion blasted the 113-kilogram doors off the container. They flew 40 metres and landed in Rutledge Park. The problem was the heavier-than-air propane sank to the bottom of the container below the vents, which are up high and were unable to ventilate the container.

The only injury was sustained by a construction worker who was standing in a shipping container adjacent to the explosion. He was thrown violently but suffered non life-threatening injuries.

The trend of repurposing shipping containers, or sea cans, as offices or storage units has become a popular one. Resale companies such as seacan.com sell a variety of containers. A standard model – which are about 10 feet long, 8.5 feet high and eight feet wide – sell for $3,995.

“Shipping containers are being repurposed all over B.C.,” said Dan Strand, director of prevention field services with WorkSafeBC. “The containers are designed to be watertight, which means they are well sealed with little or no ventilation, ideal for shipping purposes but potentially dangerous for other uses.”

Vapours or gases from common flammable or combustible substances, when combined with an ignition source in a container with little or no ventilation, can produce a catastrophic incident. A leak of just one kilogram of propane, for example, can rupture a closed shipping container; the propane tank on an average home barbecue holds nine kilograms. A full tank can generate the same explosive force as 100 kilograms of TNT.

While the Midtown explosion went off without tragedy, a 2011 incident led to the death of a volunteer firefighter.

The volunteer firefighter was struck and killed by a door that blew off a shipping container while he was fighting a fire in the next building. Afterward, investigators found that the container was being used to house a collection of gas-powered tools. When the fuel vapour was exposed to extreme heat, the container exploded.

Other risks in shipping containers include floorboards which may have been treated with toxic chemicals, or residual chemicals which may have spilled in transit, both of which can overcome unsuspecting workers.

Just Posted

BC Hydro to offer sale of Kings Road land to Saanich

Preserving land as park ‘a no-brainer,’ says neighbour

Victoria UnWined helps grant wishes for children facing critical illness

UnWined Vancouver Island raises money for Make-A-Wish BC & Yukon

Victoria teen with mobility issues stranded by stolen tricycle

The tricycle is described as customized light blue, three-wheeled tricycle with “white wall” tires

Saanich plants 60 trees to mark 60 years

Saanich Parks celebrates alongside National Tree Day, Sept. 26

Victoria’s Cool Aid Society unveils mural in celebration of 50th anniversary

The mural was created by Victoria’s artist-in-residence, Luke Ramsey

VIDEO: Tour de Rock rider says event provides badly needed support

Cancer survivor and volunteer firefighter Nicole Emery speaks about importance of fundraising tour

Rattie scores 3 as Oilers blank Canucks 6-0

Vancouver slips to 1-5 in exhibition play

Veterans Affairs ordered to take second look before supporting vets’ relatives

Liberal government ordered officials to adopt a more critical eye

Dead B.C. motorcyclist was member of group that raced down mountain road

Some group members record their rides on Strathcona Parkway and post times to page

Indigenous athletes in spotlight at BC Sports Hall of Fame

New gallery to feature Carey Price, Kaila Mussel and Richard Peter

B.C. couple who went missing on flight from Edmonton named by family

Family released a statement Wednesday saying they’re still intent on finding the two-seater plane

VIDEO: A close look at what you were breathing during the B.C. wildfire season

Electron microscope images show soot and tar particles generated by worst B.C. fire season

Island man calls 911 after being robbed of his drugs

Nineteen-year-old and 15-year-old suspects face multiple charges following robbery Monday in Nanaimo

B.C. could provide clues as to how New Brunswick electoral results shake out

Premier Christy Clark faced a strikingly similar scenario following the province’s 2017 election

Most Read