This question already has an answer here:
This is sort of the inverse of this question.
I was looking at the Boeing facility in Renton, WA in Google maps, and I realized, the airport is across the (Cedar) river from what I assume to be the construction facility. The Boeing facility in Everett, WA is also across Highway 526 from the airport. That prompted this question: How is an airplane that just finished getting built (in any facility) delivered to the airline that bought it?
This question is targeted at large passenger aircraft being delivered to airlines.