"Salmen" redirects here. For the politician in the Åland Islands see Olof Salmén.Salmen High School is a public high school in Slidell, Louisiana, USA, under the St. Tammany Parish School Board.Hurricane Katrina devastated Salmen, pushing a storm surge of over eight feet through the area. All the buildings were devastated, with the exception of the new science wing, which was built in the last few years.