Thanks.
“From 2008, it’s a retaining wall alongside a new runway at SeaTac airport.”
Yea, I was wondering what that was. I remember it as being one huge earth moving project, well over 100,000 truckloads. Here’s an article from 20 years ago:
http://community.seattletimes.nwsource.com/archive/?date=19960815&slug=2344232