Navigational Aids

 

To facilitate the pilotage appropriate navigational aids have been provided throughout the passage. At present the following aids are available :

Lighthouse

Sagar Lighthouse (Lat. 2139'N, Long. 08803'E) is situated at Middleton Point on the Sagar Island one and half km. inshore. It is visible in clear weather from a distance of 28 Km.

Dariapur Lighthouse (Lat. 2147'N, Long. 08752'E) is situated on the right bank of hugli south of Rasulpur river and about 2.7 kms inshore.  It is visible in clear weather from a distance of 35 Km.

Light Vessels

There are four unmanned light vessels. These are as follows : (distances shown against each are southward from the Sagar Lighthouse).

  •   U.G.L.F. Lat. 2129'57" N Long. 08806'37.5" E

  •   L.G.L.F. Lat.  2121'57" N Long. 08810'05" E

  •   TALENT WK L.V. Lat. 2117'21" N Long. 08811'17" E

  •  Eastern Channel L.V Lat. 2104'19" N Long. 08811'07" E

Automatic Tide Gauges

These are maintained at Tribeni, Garden Reach, Diamond Harbour and Haldia for round-the-clock recording of tidal data, which is used for the prediction of tides and preparation of tide tables by Survey of India.

Semaphores

These are maintained at Akra, Moyapur, Hooghly Point, Balari, Gangra and Sagar for displaying rises of tide for the convenience of various vessels navigating, dredging and surveying in the River Hooghly.

River Marks and Buoys

500 (of which 140 are lighted). Some of  Lighted transits are unlit at present. However, KoPT is contemplating to re-lit these Transit Marks to facilitate night navigation in the stretch from Kolkata to Uluberia.  These are extremely useful in pilotage and dredging as well. These lights are operated either by electricity, battery or by dissolved Marine Acetylene Gases and are maintained by Superintendent, Dredger & Despatch Service under the charge of a Lighting Officer. There is also 1 boat buoy, 30 lighted buoys and 72 unlit buoys marking the navigational channel from Sandheads to Kolkata.

Wireless/VHF Network

In order to facilitate speedy communication between various shore establishments and CPT vessels operating in the river wireless stations have been provided at Kolkata, Hooghly Point, Haldia and on board all dredgers, pilot vessels, despatch and survey/research vessels. In addition, these stations/vessels are also provided with VHF sets which are installed at many other vital oprational points including tidal stations within Kolkata Dock System & Haldia Dock Complex.

Syledis Chain System

The Electronic Position Fixing System "Syledis" was introduced in the Port of Kolkata in 1983.The Shore based Syledis Position Fixing System functions round the clock with the help of the Syledis Stations located at Haldia, Roychowk, Dadanpatra Bar and Frazergunj.In the wide estuary, position fixing with reference to shore objects to be viewed from the deck of a vessel, is very difficult. Acccordingly, the Syledis System is operated for position fixing of the vessels plying in the wide Hooghly Estuary. The system is effectively utilized for the purpose of hydrographic survey and dredging.

Differential Global Positioning System (DGPS) :

Kolkata Port Trust is replacing Syledis Position Fixing system by Differential Global Position Fixing System in phases by latest state-of the art equipments. The satellite based DGP System functions with the help of orbiting satellite and reference stations installed by KoPT. Mobile Sets on board the vessels receive  signals from the satellite as well as correction signal from the reference Stations giving exact locations of any mobile craft having the DGPS receivers in terms of latitude, longitude or in other coordinate  system along with related navigational parameters for safe navigation, dredging and survey purpose.

                                       

VTMS Control Room at Haldia.

Vessel Traffic Management System (VTMS)

The VTMS is a Radar Surveillance System Operating on radars at strategic locations  connected through microwave data link and communication system.With a view to providing more effective and safer guidance to ship from the Sandheads to Haldia through radar survelliance, Vessel Traffic Management System (VTMS) was taken up in the first phase from the Sandheads to Haldia.

        The system was operational in April 1996. Further, for the requirement of ISPS code and also for maintaining a back up to the VTMS  system, a stand alone VTS with Automatic Identification System (AIS)  facility was established at the Saugar pilot station in May 2005.

 Boat Registration

All unpropelled steel and wooden boats operating within the port limits are licensed by Superintendent, Boat Registration after necessary inspection to ensure safety of goods and lives being transported by these boats.  The Licensing fees are payable as per extant Scale of  Rates.

River Regulatory Works

Kolkata Port Trust is saddled with perennial problems of depth in the river Hooghly. In the past a number of regulatory schemes have been taken up. The deteriorating depths for Kolkata prompted the concerned authority to go in for selecting Haldia Docks as an auxiliary deep water port.

 The River Regulatory Works, aimed at improvement of draft at Hooghly Estuary and proposed at a revised cost of Rs 936.44  crores (under revalidation by CWPRS in tie-up with other overseas agencies) is one of the core schemes of Kolkata Port, envisaged to bring about comprehensive improvements in the river-regime of the only riverine major port of the country. Environmental clearance for the scheme has been received in September 2007 and is currently awaiting approval of PIB/ CCEA. Revalidation of the scheme is being done by CWPRS along with other overseas agencies.

 

Redefined R.R.Scheme :

 Based on the mathematical model study, NIOT has recommended the following works for execution and envisaged the following benefits thereof:

Recommended Works

i)                  Capital Dredging over Balari Passage.

ii)                Submerged dyke east of the navigational channel at Jellingham.

iii)             A groyne / spud on the eastern bank in the Rangafalla channel.

      Envisaged Benefits

 (a)            Increase in depth in the navigational channel by 0.5 m

      (b)          Reduction of Annual Maintenance Dredging by about 2 mm3 / annum from the existing level.

                                 

                                          

                                                     

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