Preparation is underway to begin construction in a few months. TransCanada first proposed the $8 billion project 10 years ago.
TransCanada spokesperson Robynn Tysver says it likely is the most studied pipeline project in history. The State Department recently updated its 2014 environmental impact study of Keystone XL.
“Most recently, the Department of State put out a draft environmental assessment report. That report said that the Keystone XL pipeline poses minimal risks to groundwater and the environment,” Tysver tells Nebraska Radio Network.
TransCanada expects to begin laying pipe first in Montana and South Dakota next year with construction in Nebraska not beginning until 2020.
Keystone XL is a 36-inch pipeline which would run from Alberta, Canada to Steele City, Nebraska where it would connect to the southern portion of Keystone XL. TransCanada says the pipeline will move crude made from oil sands in western Canada to refineries along the Gulf Coast in Texas.
The pipeline has been delayed a number of times.
A federal judge ordered the State Department to update is environmental assessment of Keystone XL after the Nebraska Public Service Commission approved the route, but not the route proposed by TransCanada.
President Barack Obama denied TransCanada the presidential permit it needed to cross the border. President Donald Trump reversed the decision and approved the project.
AUDIO: Brent Martin reports [:50]