Line 3 is a replacement project for a pipeline that was built in the late 1960s. In 2014 we got approval from the Canada Energy Regulator and our customers to go ahead and replace that pipeline in Canada. Then we've just recently gotten approval from the State of Minnesota to replace the portion of that line in that state.
It's a $10-billion project on both sides of the border. It provides the latest technology and significantly enhances the safety and reliability of that pipeline.
When we got approval to build the pipeline in Minnesota, it came with some very stringent environmental conditions regarding how we'd do that pipeline replacement. Those environmental conditions, coupled with the fact that we're building a pipeline in the winter as opposed to in the summer, have caused the cost of that pipeline to go up relatively significantly.
The costs were also impacted by the fact that there was about a two-year delay in the regulatory process, for multiple reasons, in the state of Minnesota. Obviously, time costs money. There were really three big factors that caused about a $1-billion cost increase for building a roughly 300-mile pipeline in the state of Minnesota: winter construction, regulatory environmental oversight and a two-year delay.