Construction on the Trans Mountain pipeline expansion project is expected to start in the coming weeks.

Trans Mountain Corporation announced on Wednesday they’ve issued a ‘notice to proceed’ to a number of contractors allowing them to start gathering equipment, hire workers, and more.

They’re being given 30 days to complete this before work would start in communities along the route.

“With the first wave of regulatory approvals complete, we are confident that we have a path forward by which the Expansion Project construction can commence,” said Ian Anderson, President and CEO of Trans Mountain Corporation, in a release.

The company expects to receive permits and approvals for all the remaining construction areas in the coming months.

An estimated 4,200 workers are expected to be hired by the end of the year.

“Clearly this project has been subjected to numerous delays and setbacks over the past several years,” added Anderson.

“With today’s announcement on the commencement of construction, I firmly believe that we are finally able to start delivering the significant national and regional benefits we have always committed to,” adds Anderson.

The project is now expected to be completed by mid-2022.