Posting at Library Preservation, Kevin Drieger has some late updates from the Iowa flood zone. As of yesterday morning, officials at the main library at the University of Iowa reported "up to two inches of water is in the basement including the Special Collections storage area and the bookstacks storage area." The materials had been removed from this area earlier, so "No collections are wet or appear to be in danger of getting wet." The University is working to determine the best method for removing the water.
Kevin provides images and links to some places that weren't as lucky: the National Czech & Slovak Museum & Library in Cedar Rapids, and the art library at the University of Iowa. The Czech & Slovak Museum reportedly was able to remove at least portions of its collections out of the building prior to the floodwaters' arrival, and hopefully the art library was able to do the same.