Flood control

thumb|Components of an artificial levee: thumb|The side of a levee in Sacramento, California|Sacramento, [[California]]

thumb|350px|Paraná River floodplain, at its confluence with the headstream of the Paranaíba (on the right) and the Verde River, near Panorama, Brazil thumb|right|A floodplain after a one-in-10-year flood on the Isle of Wight thumb|right|Gravel floodplain of a glacial river near the Snow Mountains in Alaska, 1902 thumb|right|The Laramie River [[meanders across its floodplain in Albany County, Wyoming, 1949]] thumb|right| This aggradational floodplain of a small meandering stream in La Plata County, Colorado, is underlain by silt deposited above a dam formed by a terminal [[moraine left by the W

thumb|280px|upright|Chute spillway of Llyn Brianne dam in [[Wales]]

rainwater harvesting infrastructure

thumb|300px|Residents and volunteers work to fill sandbags during the Great Flood of 1993|Mississippi and Missouri river floods of 1993. thumb|300px|Members of the Georgia National Guard filling sandbags in preparation for floods.

methods used to reduce or prevent the detrimental effects of flood waters

flood event that has a 1% probability of being equaled or exceeded in any given year

flood events in cities and surrounding areas

dam in Gombe State, Nigeria

engineered canal designed to manage floodwater

restoration of a river's floodplain

flood protection structure in Brazil