text:  A steel train bridge connecting South Dakota with Iowa collapses into the Big Sioux River. Photos show a large span of it underwater. South Dakota Governor Kristi Noem says days of heavy rain and swollen rivers forcing evacuations, devastating homes, roadways, and that bridge. It was a big loss for us. That will impact us for many, many months to come. Iowa's Governor and Noem both declaring disasters for affected areas. I'm Julie Walker.