Rocks or concrete {breakwater} can block tides at sea inlets.
People can build enclosures {cofferdam} from bottom to surface, to empty of water and allow work on bottom.
Earth or stone piles {embankment} can hold back water.
Concrete or rock lines {jetty} can block tides or currents at harbors or shorelines.
Earth or concrete banks {levee} can prevent river overflow.
Earth or concrete banks {seawall} can be at shore.
River dams {weir} can change water flow or trap fish.
2-Art-Architecture-Buildings-Waterway
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Date Modified: 2022.0225