Boca Grande
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LAT: 09° 56' 42" N, LONG: 61° 34' 48" W
LOW TIDE: 34’9” MEDIUM TIDE: 35’3” HIGH TIDE: 37’03”

General Information:
For important details see Orinoco River General Information.
The Boca Grande iron ore transfer station is located in an area known as the Serpent's Mouth between Trinidad and the Orinoco River delta in about 30 meters of water, with good holding ground and with the following characteristics:
LOA: 314 meters
Breadth: 50 meters
Boom length: 36 meters
Loading rate: 3,500 tons per hour
The current and trade winds are constantly westerly and with the current sometimes reaching 5 knots. The rainy season is from May to October.

The following restrictions are enforced for loading at the Transfer Station:

1.- Maximum vessel height from the water line to top, or railing at vessel side, or top of hatch coamings: 17.20 meters.

2.- Maximum distance between centers of extreme holds: 216 meters.

3.- Maximum beam: 55 meters, if distance between centers of extreme hatches is less than 187 meters and 52 meters, if distance is greater, up to 216 meters.

4.- Maximum vessel airdraft: 17.20 meters

5.- Vessels must arrive with the ballast that can be safely discharged only during a period of 24 running hours. Masters are requested to coordinate ballast discharge with the transfer station Master.

6.- Vessels dock with starboardside against the portside of the transfer station, separated by large pneumatic-type fenders attached to the transfer station. Vessel must warp itself alongside the transfer station using her own winches/hawsers. Mooring hawsers will be worked by powered winch drums and will preferably be made of synthetic fiber.

If they are made of wire, a thirty (30) meter long nylon shock pendant will be provided on each hawser, with a soft eye on one end and the other end connected via a special shackle (Tonsberg or Mandel) to the steel wire.

7.- A docking pilot will be flown by helicopter to the transfer station and board the ship by launch.

Tugs are not available at the transfer station. Vessels' anchors are not to be used during approach or berthing maneuvers because they may foul the transfer station's mooring system.

8.- The transfer station uses belt discharging system fed by gravity. Final transfer of cargo to the vessel is via a traveling shiploader with a 36-meter boom. The boom can be slewed outboard 100 degrees from the centerline and the shiploader travels 187 meters along the portside, eliminating the need for any shifting of the vessel while loading. A weight meter is installed in the loading system to establish the B/L figures.

9.- It is not required to have an undocking pilot on board when undocking. Instructions will be given from the transfer station.

For further information:

Whilst AGEMAR has used every means to ensure the accuracy in the compilation of the information contained in this Port Handbook, no responsibility can be accepted in any way for any errors or omissions, either on the part of AGEMAR or its sources.