This document defines various terms related to docks and harbors. It describes structures like breakwaters, basins, berths, docks, jetties, piers, quays and wharves that are used in ports and harbors. It also defines terms like approach channel, apron, barges, estuary, harbor, hinterland, littoral drift and navigational aids which are important concepts in the context of docks and harbors. The document provides concise definitions of these terms to explain key infrastructure and processes involved in ports and harbors.

1. TERMS RELATED
TO
DOCKS AND HARBORS

2.  Apron: The open space left immediately in
front of a berth of a ship is known as apron.
 Approach channel: The dredged clear channel
through which ships proceed from the open
sea to the harbour basin is known as
approach channel.
 Barges: The vessels which require less depth
of water are called barges.
 Basin: The water area formed in a port on the
sea coast protected by an out laying break
water is called Basin.

3.  Berth: The space where cargo is unloaded or
loaded into a vessel is known as berth.
 Breakwaters: The protective barriers
constructed to enclose harbours and keep the
harbour waters undisturbed by the effect of
heavy and strong seas are called break
waters.
 Dock: the enclosed area provided for berthing
ships to keep them afloat at a uniform level to
facilitate loading and unloading is called the
dock.

4.  Estuary: The harbour constructed along the
banks of a river is known as estuary harbour
or river harbour.
 Harbour: The sheltered area of the sea in
which vessels could be launched, built or
repaired, or could seek refuge during storm
time and provide loading and unloading
facilities of cargo and passengers is called
harbour.
 Hinter land: The area on the land side of the
port from where the port may get freight and
passengers for transportation is known as
hinterland.

5.  Jetty: A piled solid or open type structure built
out from the shore to deep water to berth
vessels along side is called a jetty.
or
It is a narrow structure projecting from the shore
into the deep water with berths on both sides
and some times on end also.
 Littoral drift:
The exposed coasts are subjected to erosion at
certain sections and siltation at some other
sections due to wind and waves striking the
shore. These waves tend to stir up and move the
lighter particles of the sand in suspension. This
process of movement and deposition of sand
near the fore shore is known as littoral drift.

6.  Navigational aids: the devices such as
lights, signals used to guide and warn
safe, efficient, economic and comfortable
travel of ships in rivers, oceans and harbors
are known as navigational aids.
 Piers: The structures constructed
perpendicular or oblique to the shore of the
sea or river to provide bathing facilities are
known as piers.
 Quays: The platforms constructed parallel to
the shore to allow ships to berth along sides
these platforms for loading and unloading
purposes are called quays.

7.  Wharves: The landing platforms or places in
the form of walls built near the shore for
vessels to berth are known as wharves.
 Transit sheds: A covered arrangement for a
temporary storage of incoming and out going
cargo requiring protection and storage for a
short time is called transit shed.
 Ware houses: The permanent structures
provided on shore or behind transit sheds for
storage for goods for longer periods are
known as ware houses or storage go downs.