Started looking ten years ago. Construction itself will take ten years. And years away from selecting and expropriating the site. There’s no good excuse to not be halfway there by now. It’s a make-work project. Some small organization is dragging this out because it pays well to never finish.

Edit: sorry, it’s that this sort of never-ending government project is all too common in Canada. Military procurement is an especially sore point right now, atrociously delayed.