The Hole in the Ground.

They started doing some construction outside in the street.

Hard to make out in the picture due to high contrast, but there's either a small creek or a sewer main running directly under the street!

I should have predicted this whenever I head the 'clu-clunk' from cars going by but I thought maybe it was an expansion joint.

Though it looks like the hole's been framed, the hole is actually cut directly in the concrete road slab. Check out that section!