The construction process might have been a little rocky, but the drive on part of the Trans-Canada Highway isn’t any smoother thanks to bumps on the section of road known as Plan B.
Some drivers on the new, $16-million highway, which opened to traffic along the entire stretch in the fall, have been left wondering why it is so bumpy, considering it is was only recently paved.
Steve Yeo, the province’s chief engineer, said when construction is done late in the season there are often what he called “frost differentials” or heaving.
“I fully expected that to happen,” he said.
Construction on the highway began in 2012 after protests shut it down temporarily and it officially opened in October 2013 from one end of the realignment to the other.
Some drivers have since been complaining about how uneven and bumpy the road has become.
Yeo said the areas that were paved last were the worst sections near New Haven and in the Bonshaw area.
It’s because the moisture didn’t have time to dry and settle so it’s consistent, Yeo said.
“I fully expected that to happen,” Steve Yeo, the province’s chief engineer
“Under the asphalt you get pockets of higher moisture content, which when it freezes raises more.”
Yeo said roads typically rise about three inches in the winter when they freeze, but when that happens it’s usually consistent across the entire road.
Another layer of asphalt will be laid on the road this year and Yeo said when people drive on the highway next winter they won’t see the bumps that are there now.
“You’ll see a consistent heave across the whole mat,” he said.