This wing conducts about 20 routine surveys at various places for the Harbour Engineering Department and the Port Department every year. In addition to the above, this wing collects the tide data at various places throughout the Kerala coast as requested by the National Institute of Oceanography, Cochin, on payment basis.
The Hydrographic Survey Wing possesses the following most modern survey equipments

i. Single & Dual frequency Echo Sounders
ii. Differential Global Positioning Systems
iii. Total Stations and Automatic levels
iv. Hydrographic Software
v. Automatic Tide gauges.
vi. Cartographic Software etc.

The wing have 4 sea going survey boats ,3 numbers of OBM fitted Dinghies and other infrastructure facilities. This Wing is capable of taking up all Hydrographic Investigations on all water masses such as Sea, Ports and Harbours, estuaries, lagoons, inland water transport canals, reservoirs, lakes etc. The results of the investigations are presented in the form of digital chart.

Hydrographic Survey conducted by Hydrographic Survey Wing from April 2007 to October 2009.

1. Hydrographic survey of Azhikkal Approaches. - May 2007
2. Pre-dredging Survey of Tuticorin Fishing Harbour - June 2007
3. Hydrographic Survey of Thankassery approaches - October 2007
4. Hydrographic Survey of Aakulam& Veli lake - October 2007
5. Hydrographic Survey of Neendakara approaches - November 2007
6. Hydrographic Survey of Chethy - November 2007
7. Hydrographic Survey of Parappanangady - November 2007
8. Hydrographic Survey of Vizhinjam Harbour - December 2007
9. Hydrographic survey of Thanur - December 2007
10. Hydrographic survey of Azhikkal inside - January 2008
11. Hydrographic Survey of Cheruvathur - February 2008
12. Hydrographic Survey of Moplah Bay - February 2008
13. Hydrographic Survey of Puthiyappa. - March 2008
14. Hydrographic Survey of Vellayil - March 2008
15. Hydrographic Survey of Koyilandy - April 2008
16. Ashtamudi - May – July 2008
17. Malpe - August 2008
18. Vizhinjam Approaches - September 2008
19. 32 Azhikode Approaches - November 2008
20. Parappanangadi - November 2008
21 Valiyathura - December 2008
22 Azhikkal Approaches - December 2008
23 Azhikkal Inner - December 2008
24 Chedruvathur - December 2008
25 Vellayil - January 2009
26 Beypore - February 2009
27 Thali - March 2009
28 Thalassery - March 2009
29 Koyilandy - April 209
30 Muthalapozhi - April 2009
31 Thankassery - April 2009
32 Niphat Cochin - April 2009
33 Moplah bay - May 2009
34. Moplah bay - May 2009
35. KSINC Cochin - May 2009
36 Malampuzha Dam - July 2009
37 Kottayam Minor Port - Sep-Oct. 2009
38 Vizhinjam Approaches - October 2009
39 Vizhinjam Inside - October 2009
40. Poovar - October 2009

Past Activities

This Wing is executing Hydrographic Surveys of Fishery Harbours and fish landing centers through Kerala for its construction and maintenances. The Wing had carried out Hydrographic Surveys of Peechi Dam Reservoir including its upstream and tributaries for Kerala Engineering Research Institutre (KERI), Neyyar Dam Reservoir for Kerala Water Authority, Malampuzha Dam Reservoir for Kerala Water Resources Development and Management (KWRDM), Hydrographic survey work of Chamapakara Canal extending from Thevara ferry to Ambalamughal for (FACT) and hydrographic survey of Edappallikkotta water lake for Hindustan Petroleum Limited. The Hydrographic Survey of Inland Navigation Canal from Kotti to Kottappuram (35 km) and the Hydrographic investigations in the Tsunami affected area in the coastal region extending from Thangassery to Thottappally (50 Km) are the prestigious work conducted for Kerala irrigation department and CESS respectively. The wing had conducted a number of surveys in the National Waterway- III for Kerala State Maritime Development Corporation in the Cochin area in connection with dredging and maintenance. Pre dredging survey at Tutucorin Fishing Harbour for Tutucorin Port Trust and at Mahe for Pondicherry Government were also the prestigious works conducted by this Wing.