This is a pretty unique type of building, which I haven't seen elsewhere: the house on pylons. I think most of these places are likely second homes or cabins, but I'm not sure. I'm really blown away by just how far above the water they feel the need to be. This isn't a few feet up, it's more than a story above the level of the ground, and something more like two stories above the level of the water. Some of these places look really expensive, and some are much more modest, like a mobile home up on pylons. Often the space under the house is used to park boats or cars. Often there are RVs nearby. Most of these structures have large decks on the river side, and most have docks or piers down at the water.
It's very physically compelling to look up - way, way up - at the underside of these structures and think about the water level being that high. My goodness, what a flood that would be, has been, will be again.