Not high enough to reach us -- we're up on a hill above the Cumberland, and even within our hilly neighborhood are at a high point. Our crawlspace was a little muddy around the perimeter, but water wasn't getting under the house (a minor miracle, as roof runoff was rushing all around the house). We did get some roof leaks all in the back of the house, as did our other north-facing neighbors -- and these aren't spots that have leaked in heavy snowmelt or rain before, so we think it probably has something to do with the 14 inches of rain that fell over two days. In some places it was twenty.
Yeah, you read that right.
So how high is the water? It's high enough to do this. It's high enough to submerge one of our two water treatment plants, and high enough to flood LP Field, and Opryland, and a lot of downtown, and a lot of the west part of town. The giant scrapyard next to the river is underwater, the tops of heavy equipment visible above the water. The river stinks of gasoline.
In other words: not good. But us, we're just fine.