No small task to build and maintain pipelines...
Building pipelines take a whole lot more people, for a much shorter time frame, than operation and maintenance.
~4,000 jobs for the two years of construction. Then after that:
There will be 25 new pump stations, 18 of those in the US. Plus an expansion of the existing pump station in Steele City, Nebraska. Then there is 852 miles of addition pipe in the US. It is hard for me to imagine less than 100 permanent, direct jobs and more than double that for average contract and temporary jobs over the next couple decades. That is the low end, could be double or so.