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Embankments are often constructed using material obtained from a cutting. Embankments need to be constructed using non-aerated and waterproofed, compacted (or entirely non-porous) material to provide adequate support to the formation and a long-term level surface with stability.
Small rockfall protection embankment; compacted ground and rockery facing. (Soazza, Switzerland) The very first use of rockfall protection embankments dates back to the 1950s. Originally, embankments were mainly made from compacted natural soil and were designed for rather low-impact-energy events. [3]
Cattle grazing below high water, Isle of Dogs, 1792 (Robert Dodd, detail: National Maritime Museum) The Embanking of the tidal Thames is the historical process by which the lower River Thames, at one time a broad, shallow waterway winding through malarious marshlands, has been transformed by human intervention into a deep, narrow tidal canal flowing between solid artificial walls, and ...
Modern zoned-earth embankments employ filter and drain zones to collect and remove seep water and preserve the integrity of the downstream shell zone. An outdated method of zoned earth dam construction used a hydraulic fill to produce a watertight core. Rolled-earth dams may also employ a watertight facing or core in the manner of a rock-fill dam.
A levee, an artificial bank raised above the immediately surrounding land to redirect or prevent flooding by a river, lake or sea; Embankment (earthworks), a raised bank to carry a road, railway, or canal across a low-lying or wet area
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By placing these embankments somewhat back from the margin of the river-bed, a wide flood-channel is provided for the discharge of the river as soon as it overflows its banks, while leaving the natural channel unaltered for the ordinary flow. Low embankments may be sufficient where only exceptional summer floods have to be excluded from meadows.
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