Stoplogs 3 : Logs, planks, cut timber, steel, or concrete beams fitting into end guides between walls or piers to close openings in levees, floodwalls, dams, or other hydraulic structures
Department of Homeland Security, Federal Emergency Management Agency (FEMA), Levees: Identifying the Risk, Glossary: Frequently Used Terms for Levee Systems, Washington DC, USA 2008. http://www.fema.gov/media-library-data/20130726-15 54-20490-4604/lv_gloss.pdf, (Dam Sfty - Amer) {892}