You heard about the sink hole cave-in along the Des Moines River on WHO Radio yesterday. Van was at the shops of the East Village so he stopped by and took pictures. The city didn't waste any time working on it. In the morning there was a big hole. Van took this photo at 12:30, and you can see they were hard it fixing it.
And the other 2 pictures are right next to it where crews are working on the new Grand Avenue bridge. Could there be any connection? If not, it's a big coincidence!