Metro Vancouver snow: Watch how crews prevent 'ice bombs' from falling on local bridges
With Metro Vancouver seeing its first snowfall at the city level, the province is preparing to clear buildup on local bridge cables to prevent so-called "ice bombs" from falling.
B.C.'s Transportation Ministry said in an update Friday that contractors are ready to use cable collars to clear snow and ice from the Alex Fraser and Port Mann bridges as needed.
The collars were installed after an "ice bomb" fiasco in 2012, which damaged about 350 vehicles on the Port Mann when built up snow and ice fell from the collars, shattering windshields. Similar incidents have been reported on the Alex Fraser Bridge in recent years, even though the provincial ministry says "falling ice and snow (was) a rare occurrence for the first 30 years of its operation."
The cable collar system was installed in 2018 and includes 10 collars, but they require manual operation by rope-access technicians to clear the cables. The Port Mann Bridge also now has snow-clearing collars on each of its 288 cables.
The ministry says the collars "are basically chains that fit around the bridge cables." As they move down the length of the cable, they remove ice and snow. It takes less than a minute for the collar to travel to the bottom of a cable.
Technicians then manually detach the collars from the cables, move them back to the bridge tower and "hoist them back up to the top of the cables," the ministry says. Outside lanes on the bridge are temporarily closed while the clearing happens.
"In the years that cable collars have been used, they have been successful in removing most of the snow on the cables. However, some snow may be shed naturally from the cables as the weather warms or if it is blown off," the Transportation Ministry said in a statement.
"To better prepare for the weather conditions that lead to falling ice and snow, the ministry has taken steps to improve its weather forecasting and will be activating the cable-collar systems sooner in a weather event."
Before those were installed, the Transportation Ministry used other creative approaches to clear the cables, including a chopper that was flown overhead to blow away snow and ice on at least one occasion in 2016.
Dozens of insurance claims have been filed because of damage from the ice bombs.
CTVNews.ca Top Stories
For the first time in report's history, Canada's air quality worse than U.S.
Air quality in Canada is now worse than in the U.S., according to the 6th Annual World Air Quality Report. Of the 15 most polluted cities in the two countries, 14 were in Canada.
A newspaper says video of Prince William and Kate should halt royal rumour mill. That's a tall order
Prince William and his wife Catherine have been filmed at a farm shop near their Windsor home, The Sun newspaper reported -- the first footage of Kate since she had abdominal surgery for an unspecified condition two months ago.
BREAKING Roy McMurtry, former Ontario attorney general, dies at 91
CTV News has confirmed that former Ontario attorney general Roy McMurtry has died.
Hertz CEO out following electric car 'horror show'
The company, which announced in January it was selling 20,000 of the electric vehicles in its fleet, or about a third of the EVs it owned, is now replacing the CEO who helped build up that fleet, giving it the company’s fifth boss in just four years.
'You ask for your money, they disappear': Ontario man loses $17K to AI crypto scam
A Toronto man is spreading the word of a cryptocurrency scam that lures victims using AI-generated news sites after he lost $17,000 in investments.
DEVELOPING Canada's annual inflation rate ticked down to 2.8 per cent in February, defying expectations
Statistics Canada says the annual inflation rate edged down to 2.8 per cent in February.
High thoughts: The habits of Canadian cannabis users are revealed in a new StatCan report
Statistics Canada has conducted a series of surveys to measure the impacts of legalized cannabis since the Cannabis Act took effect in 2018. The latest one, the 2023 National Cannabis Survey, sheds light on users' preferences and habits last year.
Demand soars for solar eclipse glasses in Canada. Are they worth buying?
The demand for total solar eclipse glasses used to safely view the rare celestial event has been ramping up as sellers, along with astronomy and eye-care experts in Canada, warn that viewing the eclipse with the naked eye is dangerous.
Trump says Jews who vote for Democrats 'hate Israel' and their religion
Former U.S. president Donald Trump on Monday charged that Jews who vote for Democrats 'hate Israel' and hate 'their religion,' igniting a firestorm of criticism from the White House and Jewish leaders.