Riffel expansion. I found a tender that indicates they are adding 4 stacked portables, so the construction is basically a 2 story hallway for the portables to connect to.
Looks like fog will mess with my plans to get out early tomorrow before the wind picks up, but its supposed to be sunny most of next week. I programmed an orbit of downtown I want to have the drone fly itself, sunny and low wind would be ideal.
https://www.flickr.com/photos/reginaconstruction/