Flood embankment and protection status. Flood embankment A flood embankment is traditionally an earth wall used to shore up flood waters. Most flood embankments are between 1 metre and 3 metres high. A 5 metre high flood embankment is rare. Modern improvements to this design include constructing an internal central core made from impermeable substance like clay or concrete, some even use metal pilings. Some authorities call man-made structures levees. Clifton, Rawcliffe, Poppleton and Leeman ings in York River Gowan, Cumbria River Trent This is an animation showing a flood event overwhelming neighbouring properties and the added construction of a flood embankment
United States regulation of point source water pollution pollution. Oppositely, during flooding events, water pollution may spread to previously uncontaminated waters through surface overflow or the failure of man-made barriers. Before the CWA was enacted, companies indiscriminately discharged their effluents into water bodies. One such water body was the Cuyahoga River located in north-east Ohio. The river was thrust into the national limelight in 1969 when it caught fire, although the river had been plagued by fires since 1936. Pollution of the river had become prevalent in the early 1800s as contaminants from municipal and industrial discharges, bank erosion, commercial/residential development, atmospheric deposition, hazardous waste disposal sites, urban