Province installs new fencing system along Highway 1 in area notorious for rock falls

B.C.'sMinistry of Transportation and Infrastructure announced it has installed a new rock fall fencing system along Highway 1 west of Revelstoke in the Three Valley Gap.

The 122-metre long fence has five-metreposts and a network of steel cables anchored six metres deep into the rock.The fence is meant to withstand damage caused by avalanche activity, small rocksand other debris, the ministry said in a statement.

"For years, people travelling through Three Valley Gap have had ongoing concerns with falling rock," said Claire Trevena, minister of Transportation and Infrastructure.

"Next to the Kicking Horse Canyon, this may be the most challenging section of the Trans-Canada Highway in B.C., from a geotechnical perspective. Weather conditions amplify rock fall activity in the Three Valley Gap area, the majority of which originates from the high, natural slopes above the rock cut," the ministry told CBC in an email.

The fencing was designed in Europe specifically for this section of the highway, the ministry said.

Problem area

Almost two years ago, Revelstoke resident Shannon Smithwas seriously injured when hercar was crushed bythree large boulders that fell fromthe mountainside as she drove through the Three Valley Gap.

Smith survived, but in May of 2018 she started a letter writing campaign to the province to try toget safety measures added to that stretch of the highway.

Smithis pleased that thenew fence has been installed, she toldRadio Westhost Sarah Penton.

"I think it's a great start to a big problem," she said.

More needed, says Smith

However, the boulders that fell on Smith's car came from an area of the mountain above the current fence, she said.

"[The fence]wouldn't have stopped what happened to me," said Smith.

The new fencingis designed to protect travellers from smaller rock fall, which is more common in the area, the ministry saidin an email.

Last fall, a 33-metre long, lock-block retention wall was installed to address the area where large boulder events have occurred, they added.

"Driving through there now, having that fencing there, I can see that the rocks are being caught by the fencing," said Smith.

"They are dropping into the ditches, they're not actually coming out on the roads anymore as often. It still happens, but it's not as often."

Smith would still like to see the province explore some other options, such as a tunnel for the area.

"I know in the past that there have been surveys done to actually change the highway itself," she said."They have looked at snow shed and I have been told thatthe road base itself isn't strong enough to withhold a snow shed. So I don't know what the government can do, but they sure need to look at something."