"Elon Musk’s first prototype Hyperloop tunnel is no more. Bloomberg reports that the roughly one-mile-long white steel tunnel running along Jack Northrop Avenue near SpaceX headquarters in Hawthorne, California, has been removed and will be replaced with parking spaces for employees."
That wasn’t a tunnel (“an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end”, according to Wikipedia); it was a tube.
