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31 Jul 2015 / Oman, Salalah Port

Monsoon surge control guidelines

During the monsoon season, from June to September, the harbour basin may experience waves which can cause srging of vessels in the port. Surge can result in the parting of less organized mooring lines. Effective moring and good seamanship can greatly reduce the adverse effects of surge. Below are some guidelines which will help in minimizing the effects of surge. 1. Discuss and agree with the pilot on the mooring plan before entering the Harbour. Always use good quality lines in good condition preferably with lesser nylon like fiber for reduced elasticity. 2. Pay special attention to the FWD and AFT spring lines, ensure at least 2 springs each for'd and aft passed to same lead, with the lines always taught with equal tension. 3. Ensure load is equally shared among lines. Avoid 'mix mooring' on same lead. 4. Lines have to be protected from chaffing and avoid passing the lines over sharp edges. 5. Pass lines with reasonable leads for better shock absorption. 6. Personnel to always stand clear of the backlash zone of the lines. 7. Winches should not be engaged in Auto Tension mode. 8. It is recommended that vessels keep backup mooring lines to replace parted ropes if any. 9. Vessel to report any parted lines to port control on VHF CH 12. 10. Automatic mooring system, 'Cavotec Moormaster 600', is installed at Berth No 6 and 'Cavotec Moormaster 200' is installed at Berth No 1. There are 4 units at Berth No 6 with 3 pads each with units having a holding power of 60 MT each. At berth No 1 there are 12 single pad units, each unit with 20 MT holding power. These mooring units working on vacuum principle will be used whenever possible along with the conventional mooring ropes in order to reduce surge. While alongside every care must be exercised to ensure that the cavotec units are not damaged due to the mooring lines. 11. Maintain listening watch on VHF CH 12 and CH 16 at all times while in the port. 12. Port of Salalah has new shock lines of 20 meters each with breaking strength of 165 tons and these shall be provided to vessels free of cost on demand during monsoon season. Each vessel shall be provided 4 shock lines for using in conjunction with the vessel's Aft /forward springs, however, this facility shall be available only for those vessels which are not moored with Cavotec at berth# 1 or at berth #6. The method to use shock line shall be that one eye of the shock line will be passed through the eye of the vessel's spring line and will be secured back on the bollard like a slip rope. 13. The general support officer on the jetty while mooring will report any substandard lines to the pilot who will bring it to the notice of the Master. (For information about operations in Salalah contact GAC Oman at [email protected]) Source: Port of Salalah notice dated 13 May 2014

If quoting any content from Hot Port News, please cite GAC Hot Port News as the source.

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