He said the pipeline, which is about 12 percent complete now, is expected to be finished by late next year.
Goulet said crews are making steady progress, despite protests in east Texas.
Members of the Tar Sands Blockade have spent almost a month in a “tree village” near Winnsboro, Texas, to protest the project. Protesters contend the pipeline and “dirty” oil from Canada's tar sands could cause irreparable damage to the environment if it is allowed to proceed.
TransCanada also is pushing ahead with its planned Keystone XL pipeline from Hardisty, Alberta, to Steele City, Neb. Its route through Nebraska has been tweaked after state residents expressed concerns about its passage through the Sandhills region.
The Obama administration declined to issue a presidential permit for the transcontinental pipeline in January. TransCanada renewed its application in May after changing the route through Nebraska.
Goulet said the project is the most scrutinized cross-border pipeline ever, one the company intends to complete while adhering to the highest safety standards.
“We believe it will be the safest pipeline in America,” he said.
Calgary-based Trans-Canada has pipeline capacity to move about 1.4 million barrels of oil a day, as well as being a growing electricity producer and the continent's largest natural gas transmission company. About 1,600 of company's 4,400 employees are in the United States.
“We have nearly a 60-year track record of safely and reliably delivering energy needs to North America,” Goulet said.