The fish ladder is scheduled for it's regular annual cleaning beginning Monday May 13 through Friday May 17. The fish ladder viewing gallery will be closed to the public, the rest of the locks and garden will remain open as usual. Here is a link to a previous article and slideshow detailing the history and explaining the process. Keep in mind that the dates in the article refer to a previous year and for 2013 the process begins on May 13. Enjoy!