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The Weber overpass is only for the train tracks themselves, which is why steel spans could be used. The King crossing will also have station platforms and must be rated for public access, so the more complex and time-consuming concrete structure is needed.
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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.
It's going to be deep, that's for sure - current track level, minus 2 metres of deck, then ~4.5 m of clearance under the bridge! Essentially, two stories lower than what it was before.
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Of all the places along the line that will have a transformation of atmosphere, I think this one is going to be the most dramatic.
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That's not too bad south of the rail line; the north side, though, that's a huge change.
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Not only will the road and track need to be sunk two stories: they've removed the current storm sewer and will have to sink a new one sufficiently below where the new surface will lie.
That might account for the hole being (or becoming) deeper than expected.