Update: The Centennial Mills water tower in Portland is scheduled for demolition (dynamite!!) on Monday 17 Apr.
Arggh. 17 August -- this coming Monday!
Rather than post YT links, just hop over to /r/Portland and click on a few there.
The talking heads think that it will take a minimum of two weeks to knock enough of the rest of the building down, to open the tracks to passenger traffic. (Union Pacific is running freight through there unhindered, but they don't have passengers that might sue if a brick falls on their head.)