A structure, usually masonry, projecting out from the shore; a jetty may protect a harbor entrance.

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A place where ships in transit can find shelter from a storm. These are often man-made jetty enclosed areas along a featureless coastline where no nearby natural deep water harbors exist.


An articulated metal arm used at terminal jetties to connect shore pipelines to the ship’s manifold.


Lines used to secure the vessel to the jetty or another vessel etc.


Singling up means all the lines are released except for a single line from the ship to the pier is still attached in each mooring line position. Singling up is done just before letting go all the lines.

  1. Wait for the orders from the bridge.
  2. When received orders from the bridge then let go all head lines except 1 and all spring lines except 1. Usually, lines on drums are kept on for singling up.
  3. Inform bridge about casting of the mooring lines.
  4. Pick up the mooring lines.
  5. When the casted off lines are on board, inform bridge.
  6. Inform bridge about holding the station on one plus one.
  7. Disengage the required gears of the mooring drum.
  8. Engage the gears of the mooring drum of whose mooring ropes are still made fast on the jetty.


That part of a port or harbor with facilities for docking, cargo-handling, and storage.


A lock of very large size and usually of irregular shape, the gates of which are kept open for several hours after high tide so that vessels may enter as long as there is sufficient depth over the sill. Vessels remain in the half-tide basin until the ensuing flood tide before they may pass through the gate to the inner harbor. If entry to the inner harbor is required before this time, water must be admitted to the half-tide basin from some external source.


The part of a harbor most remote from the sea, as con- trasted with the OUTER HARBOR. These expressions are usually used only in a harbor that is clearly divided into two parts by a narrow passageway or man-made structures.


Heading toward the land or up a harbor away from the open sea


A ship designed to operate in any number of roles supporting ships and other operations, including a wide range of activities related to replenishment, transport, repair, harbor services, and research.


An intention of a ship or its captain, to steer, sail, or steam, usually used in conjunction with a specified direction or destination: The ship stood out of the harbor or The ship stood toward the east or The ship stood toward the missing vessel's last known position.

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