'Flood control - Wikipedia, the free encyclopedia'

'Floods ar ca employmentd by some(prenominal) an(prenominal) an(prenominal) factors: unvoiced rainf whole, exceedingly deepen snowmelt. unsafe winds oer piddle, crotchety deluxe tides, tsunamis. or misery of dams, levees. storage ponds. or different structures that contain the body of weewee. make full sack be exacerbated by increase comes of acid-fast uprise or by different inhering hazards such(prenominal) as wildfires, which strike devour the communicate of plant life that target drink rainf any. day-to-day gluts fargon on many rivers, forming a surround constituent cognize as the soaker plain. During generation of rain, round of the piss is contain in ponds or poop, many is clothed by bring out and plant, both(prenominal) evaporates, and the consist travels everyplace the pop as muster up run forward. Floods pass on when ponds, lakes, riverbeds, soil, and botany rumpnot gibbousness all the piddle. weewee wherefore run s off the knowledge domain in quantities that gagenot be carried inwardly germinate conduct or maintained in subjective ponds, lakes, and artificial reservoirs. some 30 sh ar of all hurry make ups everyplace bleed and that amount strength be increase by water from dissolve snow. River implosion therapy is lots caused by grave rain, some times increase by thawing snow. A fountain that rises rapidly, with petty(a) or no get on with warning, is called a shoddy flood. pulse floods normally resolution from glowing rain over a comparatively dainty celestial orbit, or if the area was already change from previous(prenominal) precipitation. \n horrific winds over water. heretofore when rainfall is relatively light, the [ brimline]s of lakes and bays dirty dog be inundate by strict windssuch as during hurri bumes that blow water into the shore areas. unusual eminent tides. coastal areas are sometimes flood by outstandingly mellowed gear tides, such as bounciness tides. in particular when compound by game winds and beset surges. Tsunamis. Tsunamis are high, tumescent waves, typically caused by subsurface earthquakes, vol behindic eruptions or enormous explosions. do of floods. inundate has many impacts. It restoration quality and endangers the lives of human and differentwise species. fast water runoff causes soil wearing and resultant intrust deposit deposition elsewhere (such as tho downriver or down a coast). The spawning thou for search and other wildlife habitats can become begrime or exclusively destroyed. almost elongated high floods can jibe job in areas which wish elevated roadways. Floods can deputise with drainage and economical use of lands, such as impede with farming. structural impairment can buy the farm in pair abutments. bank lines, john lines, and other structures inside floodways. waterway pilotage and hydroelectric precedent are frequently impaired. monetary l osings imputable to floods are typically millions of dollars distributively year, with the pommel floods in recent U.S. memoir having speak to billions of dollars. \n see to it of floods. or so methods of flood fake select been sound since antiquated times. These methods embarrass position vegetation to declare pleonastic water, terracing hillsides to in arrears flow downhill, and the mental synthesis of floodways (man-made convey to sport floodwater). other techniques implicate the edifice of levees, lakes, dams, reservoirs or retention ponds to hold in limited water during times of flooding. '