I live in the Canadian city of Winnipeg which is built upon the intersection of two large rivers and their flood plains. We have the Red River Floodway (https:

I live in the Canadian city of Winnipeg which is built upon the intersection of two large rivers and their flood plains. We have the Red River Floodway (https://en.wikipedia.org/wiki/Red_River_Floodway https://en.wikipedia.org/wiki/Red_River_Floodway) which has been quite successful, however, we're getting more floodwater every year and now we sometimes face severe flooding on the Assiniboine River. This all used to be at the bottom of a giant lake and probably will go back to that at some point, but we've done a pretty good job at preventing billions in losses.