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VIDEO: Trans Mountain confirms sinkholes at pipeline project site

Traffic at location in Langley has been restricted to a single alternating lane

An advisory about traffic restrictions in Langley was issued after a second sinkhole was discovered near a Trans Mountain pipeline work site.

Langley Township Councillor Rob Rindt said when the first sinkhole was discovered a few weeks ago, on 240th Street, between 80th and 72nd Avenues, across from his family farm, a representative of Trans Mountain told him it was a 鈥渙ne-off,鈥 assuring him that he didn鈥檛 have to worry about.

Then, a second sinkhole was discovered on the other side, 鈥渙n my property,鈥 Rindt said.

An advisory posted to the Township website on Sunday morning, May 14, said due to 鈥渁 road surface failure, 240th Street will be reduced to single-lane, alternating traffic with short duration closures between 80th and 72nd Avenues.鈥

Traffic control personnel were on site, and traffic lights with motorized flags were being used to control traffic movement.

There have been two sinkholes in recent weeks next to a Trans Mountain work site, the most recent leading to an announcement that was being limited to a single alternating lane on Sunday, May 14. (Dan Ferguson/Langley Advance Times)
There have been two sinkholes in recent weeks next to a Trans Mountain work site, the most recent leading to an announcement that was being limited to a single alternating lane on Sunday, May 14. (Dan Ferguson/Langley Advance Times)

In response to a Langley Advance Times query, a statement from a Trans Mountain spokesperson on Monday, May 15, confirmed there have been two sinkholes associated with the construction of their pipeline through Langley.

鈥淭renchless construction is occurring on 240th Street for the Trans Mountain Expansion Project,鈥 the statement said.

鈥淭here is currently a horizontal directional drill (HDD) underway, which is a method to safely cross underneath watercourse crossings, railways, highways, sensitive environmental areas and in places with restricted workspaces, such as urban areas.鈥

In April, there was what Trans Mountain described as 鈥渃hallenging ground conditions in the area where a localized sinkhole formed.鈥

Crews were able to fix the sinkhole temporarily and installed a road plate, and for the 鈥渟afety of the public and crews, the team determined the need for further stabilization and installed a single lane alternating traffic pattern to complete the trenchless crossing.鈥

When the localized sinkhole reappeared over the weekend, crews temporarily redirected traffic, Trans Mountain said.

鈥淥nce the trenchless crossing is complete, the sinkhole will be permanently repaired, and the road will be returned to the same condition it was before construction started.鈥

Work on the trenchless crossing was expected to wrap up at the beginning of next week.

Once complete, the pipeline, running through Langley and other areas of the Lower Mainland, will triple the amount of oil products shipped from Northern Alberta to a refinery and terminal in Burnaby.

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Dan Ferguson

About the Author: Dan Ferguson

Best recognized for my resemblance to St. Nick, I鈥檓 the guy you鈥檒l often see out at community events and happenings around town.
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