Oh, of course they were caused by misguided engineering efforts. Everything from the Army Corps of Engineers to Smoky Bear goes under that heading. The most basic problem is the fact that we locate cities next to resources and transportation, which means water, without realizing where the 400-year flood plane is. Etc. We have learned something since then.
Our problem, today, is fixing these things. Which is blocked by folks who don't believe in anthropogenic climate change, or even cause and effect at all. They don't, for the most part, register Democratic.