Besides the havoc and damage our floods have caused, at least they provided the first real test for the Truckee River Restoration Project, a huge 14-year effort to bring nature back along 11 miles of the river. Chris Sega, the project manager for the Nature Conservancy, told us it was a massive undertaking: "It was pretty daunting at first when I started working here. The scale of it was very large." We saw it for ourselves last year. We watched as bulldozers and excavators...