Wharf. A wharf, quay, staith, or staithe is a structure on the shore of a harbour or on the bank of a river or canal where ships may dock to load and unload cargo or passengers.
Such a structure includes one or more berths, and may also include piers, warehouses, or other facilities necessary for handling the ships. Wharves are often considered to be a series of docks at which boats are stationed.
A marginal wharf is connected to the shore along its full length. Traffic sign: Quayside or river bank ahead.
Unprotected quayside or riverbank. A wharf commonly comprises a fixed platform, often on pilings.
Commercial ports may have warehouses that serve as interim storage: where it is sufficient a single wharf with a single berth constructed along the land adjacent to the water is normally used; where there is a need for more capacity multiple wharves, or perhaps a single large wharf with multiple berths, will instead be constructed, sometimes projecting over the water. A pier, raised over the water rather than within it, is commonly used for cases where the weight or volume of cargos will be low. Smaller and more modern wharves are sometimes built on flotation devices to keep them at the same level as the ship, even during changing tides. In everyday parlance the term quay is common in the United Kingdom, Canada, Australia, and many other Commonwealth countries, and the Republic of Irelan