I do not want to put it to the test. It ends badly.
Chicago is over seven-hundred feet above sea-level
Chicago already had a "taste" of the Great Flood when the old, forgotten freight tunnels got flooded from a pylon-puncture in the Chicago River, April 13, 1992. That was one expensive hole.
Anyway, here is a head-on shot of Asteroid 2014AA... as it came in, this year. As you might notice... it is hard to notice, except that it is oblong... and not spherical.