Dredging Corporation of India (DCI) was established in 1976 and is headquartered in Visakhapatnam, India. DCI provides dredging services to maintain navigable depths in shipping channels for major and minor ports, the Indian Navy, and other maritime organizations. Services include capital dredging, maintenance dredging, beach nourishment, land reclamation, shallow water dredging, and project management consultancy. Dredging is necessary to remove accumulated sediments that fill channels and harbors over time in order to ensure safe passage of vessels.

1. Dredging Corporation Of India Limited
Dr. Vandana Singh
Researcher &Educator

2. What is Dredging?
 Dredging is the removal of sediments and debris from the
bottom of lakes, rivers, harbors, and other water bodies. It is
a routine necessity in waterways around the world because
sedimentation—the natural process of sand and silt washing
downstream—gradually fills channels and harbors.
downstream—gradually fills channels and harbors.
 Dredging often is focused on maintaining or increasing the
depth of navigation channels, anchorages, or berthing areas
to ensure the safe passage of boats and ships. Vessels require a
certain amount of water in order to float and not touch
bottom.

4. Introduction to DCI
 The Dredging Corporation of India Limited (D C I) was
established in the year 1976. It's Head Office is situated on
the east coast of India at Visakhapatnam.
 DCI provide dredging services to the Major Ports of the
country in India and helps to ensure continuous availability of
the desired depths in the shipping channels of the major
the desired depths in the shipping channels of the major
and minor Ports, Indian Navy, Fishing Harbors and other
maritime organizations.
 DCI is fully equipped to offer the complete range of
dredging and allied services to the users in India and
abroad and to provide the vital inputs for the national
development.

5. Services
I. Capital Dredging
II. Maintenance Dredging
III. Beach Nourishment
IV. Land Reclamation
ShallowWater Dredging
V. ShallowWater Dredging
VI. Project Management Consultancy
VII. Marine Construction

6. Capital Dredging
 Capital Dredging the process of removing the soil to create a
new harbour, berth, waterways.
Maintenance Dredging
 Maintenance Dredging every Port or Harbour designed with
 Maintenance Dredging every Port or Harbour designed with
certain navigable depth in it’s channel or water bodies for the
safe entry and exit of ships. The process of removing the
accumulated material to restore it’s depth is called
“Maintenance Dredging”.

7. Beach Nourishment
 Beach Nourishment: The process of deposition of sediments in the
coastal line from the adjoining areas is called “Beach Noursihment”.
 Reclamation
The process of raising the land level to create a artificial land either just
below or adjacent to water bodies is called “Reclamation”. The fill
material is generally used from the adjacent water bodies so as to
material is generally used from the adjacent water bodies so as to
improve the depth in the water bodies as well as to use to same for
creation of land.
 ShallowWater Dredging
 Project Consultancy
 Marine construction

8. BENEFITS OF DREDGING
 Widening and Deepening: Removing sediment can maintain the
appropriate width and depth for enabling the safe, unobstructed passage of
cargo vessels carrying oil, raw materials, and other essential commodities.
 Waterway Project Preparation: Dredging is a critical underwater
excavation step in many waterway construction projects such as bridges, docks,
piers and underwater tunnels.
piers and underwater tunnels.
 Land Reclamation Projects: Sediment removal is sometimes used as a
source of materials for land-building projects. The liberated sediment can then
be dried out and transported to a new location where additional land is
required for building and other purposes.

9. Environmental benefits
 Environmental Remediation: Sediment removal can help
to restore a shoreline or beachfront to its original condition
by reversing the effects of soil erosion.
 Cleanup Applications: Dredging can clean up a waterway
after a toxic material spill or via the removal of trash, debris,
decaying vegetation, sludge or other materials that can
decaying vegetation, sludge or other materials that can
contaminate water and soil.
 Preserving Aquatic Life: Dredging can produce a
healthier aquatic eco-system that can result in a more suitable
habitat for fish and other wildlife. It can also be used for trash
and debris removal to keep the waterways clean.

10.  General Pollutant Removal: Water bodies located near
urban areas and industrial complexes can quickly become a
receptacle for various pollutants. Sediment removal can
prevent the accumulation of pollutants and keep the
waterway clean and healthy.
 Remediation of EutrophiedWater Bodies:
Remediation of EutrophiedWater Bodies:
Eutrophication is an excessive amount of nutrients in a water
body typically caused by water runoff from the surrounding
land. Eutrophication can lead to an overabundance of plant
growth that results in oxygen deprivation and can cause the
death of aquatic wildlife. In some cases, dredging may be the
most viable remediation option when eutrophication occurs.