"After meeting today with senior City representatives, CP remains extremely disappointed that the City of Vancouver continues to significantly undervalue this corridor," the railway said in an emailed statement.
"The Arbutus Corridor remains a valuable asset to the railway and as such CP will resume work to return the corridor to operating standards in the coming days."
CP Rail sent a letter to residents two weeks ago. warning it would start spraying herbicide and begin work to repair tracks and crossing along the Arbutus railway corridor on the west side of Vancouver.
That's when the City of Vancouver stepped in and arranged for the work to be postponed while the two sides tried to negotiate a solution.
The city has rezoned the land to restrict any future commercial or residential development.
CP previously said it intends to work through August and September in order to have the entire line ready for train operations in the fall.
The railway has already ripped up community gardens along the corridor after bringing in heavy equipment in August to clear the right-of-way near its tracks.
Its goal is to have the rail line up and operating by fall in what some have said is an apparent bid to force the city to buy the land.