King Street underpass at the transit hub

[kps]

The trench there in front of School of Pharmacy is simply massive.  I wonder how much of that will be filled in?  Obviously, the grading there is going to drop down, but I'm still having a bit of a hard time exactly visualizing how the retaining walls will look and all that.

The current trench seems to be level (the lane on the pharmacy side lines up with the water on the deeper side), which makes me think it's pre-work for utilities or something like that, rather than the actual approach.