Port of Dundee. Large Tanker Guidelines

Transcription

1 Port of Dundee Large Tanker Guidelines 1

2 Contents 1. Background 1.1 Purpose and Scope Compliance Definitions 3 2. General Information 2.1 Caledon West Wharf Port State Control Safety Anti-Pollution Operations Personnel Access to/from the Berth Operational Planning 4 3. Pre Arrival Planning 3.1 Maximum Draft Sheet Large Tanker Checklist Pre Arrival Letter 5 4. Pilotage 5 5. Towage & Harbour Vessels 6 6. Abort Points 7. Berthing 7.1 Manoeuvring Princess Alexandra Wharf King George Wharf West Deep Anchorage 7 8 Weather Parameters 8.1 Visibility Parameters 8.2 Wind Parameters Sea State 8 9 Moorings Communications 8 2

3 Appendices A1 Mooring & Security Cordon Diagram 9 A2 Maximum Draft Calculation 10 A3 Maximum Draft Sheet A4 Large Tanker Checklist 11 A5 Gangway Rigging Drawing 12 3

4 1 Background 1.1 Purpose and Scope This publication has been compiled to complement the rules, regulations and recommendations applicable to river transit, berthing and unberthing of large tankers at Caledon West Wharf in Port of Dundee. These guidelines form an integral part of the planning and operational processes to manage Marine Risk and should be consulted in conjunction with Port of Dundee Marine Guidelines. 1.2 Compliance The importance of following these guidelines is emphasised and divergence should only normally take place after consultation and agreement between the Master or Pilot, Forth & Tay Navigation Service and Harbour Master. However, it is recognised that rapid and sudden change in circumstances make it necessary for the person on the spot to take decisions in the light of these changes. 1.3 Definitions Vessels that call at the Port of Dundee, which are classed as large tankers tend to be in the range of 90,000 tonne DWT to 110,000 tonne DWT that arrive in Dundee partly loaded with around 35,000 tonnes of crude oil and depart in ballast. For the purpose of these guidelines any tanker over 50,000 tonne DWT is considered a large tanker. 2 General Information 2.1 Caledon West Wharf Caledon West Wharf lies within the Port of Dundee in that section where Port of Dundee Bylaws applies. The wharf is predominantly utilised for the import and export of Crude Oil products from a shore based terminal operated by NYNAS. 2.2 Port State Control 4

5 All vessels will comply with the reporting requirement for ships carrying Dangerous and Polluting Goods. 2.3 Safety All vessels operating at the berth must comply fully with the requirements of the International Convention for the Safety of Life at Sea, 1974 (SOLAS) as amended. 2.4 Anti-Pollution Vessels operating at the berth must comply fully with the requirements of the International Convention for the Prevention of Pollution from Ships, 1993 as modified 2.5 Operations Operations carried out at this berth will be conducted in compliance with the recommendations contained in the International Safety Guide for Oil Tankers and Terminals (ISGOTT). 2.6 Personnel Access to and from the Berth A shore gangway is available for ships use. Gangway nets are required to be supplied by the vessel. Security cordons shown on Appendix 1 restrict access while a vessel is berthed. 2.7 Operational Planning When scheduling vessel movements to and from the berth it is imperative that during the planning process full account is taken of all pertinent criteria such as prevailing and forecast weather, tidal conditions and other river traffic. Movements should be scheduled in conjunction with shipping agents, Forth & Tay Navigation Service, Pilots and Harbour Master. Vessel agents are provided with heights of tide and maximum draft on a monthly basis or prior to any large tanker call. 3. Pre Arrival Planning 3.1 Maximum Draft Sheet The draft of any Tanker will not exceed 9.00m, which is subject to tidal restrictions (Appendix 2). 3.2 Large Tanker Checklist Once the vessel has been confirmed and a Proposed Vessel Movement form (PVM) has been submitted, a large tanker checklist is produced by the Harbour Master and distributed to: 5

6 Dundee Operations Engineering Marine Departments Security Boatmen FTNS The purpose of this checklist is to ensure all parties are made aware of the aspects of the proposed vessel arrival and berthing. See Appendix Pre Arrival Letter The Harbour Master will prepare the pre-arrival letter for the master of the incoming tanker This is placed onboard the inbound vessel by the pilot, together with the mooring plan drawing (Appendix 1) and gangway rigging drawing (Appendix 4) 4. Pilotage All pilotage is carried out in accordance with Pilotage Direction No.3 or any subsequebt pilotage direction, River Tay. Item Arrival Departure Pilotage Compulsory. Compulsory Pilot The vessel s agent in conjunction with the Forth and Tay Navigation Service prior to the vessel s arrival; will order an authorised pilot. Ordered by agent on behalf of the vessel after consultation with the Terminal Operator, Forth and Tay Navigation Service and Duty Pilot/Harbour Master advising Boarding Areas Access Passage Planning In the vicinity of the Fairway Buoy, as marked on Admiralty chart The vessel should not pass the pilotage boarding point until the pilot is onboard and has the conduct of the vessel. Pilots board the vessel using the combination accommodation/pilot ladder. Voyage: River passage planning documentation shall be available on the vessel s bridge and be agreed between the Master and Pilot 6 draught on departure. Caledon West Wharf. From shore side using an appropriately rigged gangway or from seaward using the combination accommodation/pilot ladder. Voyage: River passage planning documentation shall be available on the vessel s bridge and be agreed between the Master and Pilot

7 Scheduling through a formal information exchange process. The Pilot shall seek assurance from the Master that the engines have been tested prior to his boarding. The river passage must be planned in accordance with the Dundee Port Marine Guidelines, allowing pilot on board time to be three (3) hours before predicted high water time for Dundee. through a formal information exchange process. The Pilot shall seek assurance from the Master that the engines have been tested prior to his boarding. The river passage must be planned in accordance with the Dundee Port Marine Guidelines, allowing departure time to be calculated in accordance with vessel draft. Vessels will depart Caledon West Wharf two (2) hours before predicted high water at Dundee. 5. Towage and Harbour Vessels Tugs required for the berthing and un-berthing of large tankers are ordered by the vessel agents. All tugs must be licensed to operate in the Port of Dundee as laid down in the Dundee Harbour 1952 Confirmation Act. A list of licensed tugs is available in the Port of Dundee Marine Guidelines available at Two tugs of 60 tonne bollard pull are required during the berthing and un-berthing of large tankers. ASD tugs towing over the bow, capable of operating in the push/pull mode and working across the tide is the preferred mode. If circumstances should arise where two such tugs are not available certain configurations may be allowed after consultation with Dundee Pilots, however a configuration of 1 x 60t, 1x 40t and 1 x 30t tugs is the absolute minimum. In this case two tugs would be required for un-berthing. Escort tugs. Two tugs will meet the inbound tanker east of the Lady Buoys and escort her to the Horseshoe Buoy where the tugs will begin making fast. Outbound tugs are made fast prior to departure and will be let go under the pilot s instruction. The tugs will then escort the tanker to the Lady Buoys Vessels calling at Caledon West Wharf are required to use at least one mooring boat and should the conditions require it, two mooring boats. Licensed boatmen will provide the mooring boats. 7

8 6. Abort Points If a situation arises whereby there is a requirement to abort the passage then the Master and Pilot should be advised immediately. Abort points on the passage are as follows: Between the Lady Buoys and the Bar, the passage can be aborted between Inner Buoys and the Middle Buoys Between the Lady Buoys and the Newcome Buoy the passage can be aborted at Broughty Ferry Deep. Once passed the Newcome Buoy, any large tanker is committed to completing the transit up to the berths although once off the berth, the vessel can be swung using the harbour tugs and proceed out if required. 7. Berthing 7.1 Manoeuvring Tankers berth port side alongside Caledon West Wharf and must be swung across the tidal stream for this to be achieved, hence arrival off the berth should be as close to slack water (before the commencement of the ebb tide) as practically possible. Tidal streams in the Tay can be unpredictable and the swing should be complete with utmost caution using the bow and stern tugs as required. Fenders on the Caledon West Wharf are Dockguard Modular system DGL1600 x 1400 capable withstanding loads of up to 2412 kn. Berthing should be carried out to ensure minimum impact on the fenders and Dockguard has provided the following example: Vessel DWT 60,000 tonnes Displacement 72,000 tonnes LOA metres Beam 42.0 metres Draft 8.80 metres Speed of approach 220 mm/s (0.43 knots) will apply 1993 kn of force on to the fenders. Being the dimensions of a regular Dundee large tanker, this will allow for a maximum speed of approach of 200 mm/s or 0.39 knots. 7.2 Princess Alexandra Wharf Princess Alexandra Wharf must be clear of vessels before the berthing of a large tanker is undertaken. Vessels berthing on Princess Alexandra Wharf must be no further West than bollard 105 and must be clear before the large tanker departs. 8

9 7.3 King George Wharf King George Wharf must be clear East of bollard 143 when a large tanker is berthing and remain so until the tanker departs. 8. Weather Parameters 8.1 Weather Forecasting If the wind speed in the port is predicted by the Met Office is expected to reach 50 knots during a tanker s stay in port then berthing should cancelled until a suitable weather window is available. 8.2 Procedure For Stand-by Tug A minimum of one tug will be in attendance in the Port of Dundee whenever there is a large tanker on Caledon West Wharf. The tug will be moored in the vicinity of the tanker berth either on King George V Wharf or Princess Alexandra Wharf. These are based with the vessel already alongside the Terminal, with action to be taken when the actual sustained wind registered on the Tay Road Bridge wind anemometer or forecast wind as indicated in the following: WIND SPEED ACTION TO BE TAKEN 45 Knots Actual Tug on Stand By. If additional moorings not deployed at time of mooring, ship will be requested to run out extra moorings as required. 50 Knots Actual Tug will be requested to attend the vessel after loading has stopped. Pilot will be called out. 55 Knots Actual Request tug to push on vessel. Pilot on board. 8.3 Visibility Parameters Minimum visibility criteria for Large Tankers entering or departing the Port of Dundee are: Berthing Sailing Distance (Nautical Miles) 1.0nm 1.0nm 8.4 Wind Parameters 9

10 Wind speed is for a steady wind, measured from the most appropriate anemometer position. Anemometers are located at Buddon Ness, Port Control, Tay Road Bridge and hand held. No large tanker movements should be carried out if the sustained wind speed is in excess of 25 knots. 8.5 Sea State Particularly when the wind has been from a predominantly Easterly direction large seas and swell can be encountered at The Bar. When swells of metres are forecast a swell checked shall be carried out to allow the pilot to assess conditions. Large tankers will not board their Pilot when swell heights are more than 2.0 metres. 9. Moorings The vessel s mooring plan shall at least meet the minimum mooring requirements and also comply with the Oil Companies International Marine Forum (OCIMF) Mooring Equipment Guidelines. Number SWL Shore Mooring Hooks 3 75T West End Berth 2 100T East End Berth 2 60T Bollards in use on King George and Princess Alexandra Wharf 60T Suggested Mooring Layout can be found in Appendix 1, but is summarised below: Number Location 3 Head/stern lines to shore mooring hooks (3 x 75T) 2/3 Breast lines to 60t bollards 2 Springs each to East and West end hooks (West 100T; East 60T) 10

11 10. Communications During all times a navigational watch should be maintained on marine VHF channel 12 at all times. Towage operations will be carried out on marine VHF channel

12 A1 Mooring & Security Cordon Diagram 12

13 A2 Under Keel Clearance 4.3 metre Neap tide The Bar Lady Shoal Off Berth Berth Passing time HW 2h45m HW 2h00m HW 1h30m HW Minimum Under 1.5m 0.8m 0.5m 0.5m Keel Clearance Ruling Depth Height of Tide 3.63m 3.73m 4.16 Maximum Draft 7.93m 7.93m 8.16m 8.84m 5.4 metre Spring tide The Bar Lady Shoal Off Berth Berth Passing time HW 2h45m HW 2h00m HW 1h30m HW Minimum Under 1.5m 0.8m 0.5m 0.5m Keel Clearance Ruling Depth Height of Tide 4.13m 4.60m 5.06m 5.4 Maximum Draft 8.43m 8.40m 8.84m 8.84m This is based on predicted tides and fair weather. Vessels should reduce their draft to a minimum prior to transit and boarding the pilot to minimise the risk of missing the tide due a cut in the predicted height of tide and/or sea conditions. The Harbour Master will produce a monthly maximum draft table in advance 13

14 A3 Maximum Draft Table The table below is an example and indicative only. Actual tides will have to be checked with the live tide gauge reading, which may be lower than predicted. The Bar Lady Shoal Off Berth Passing time HW 2h45m HW 2h00m HW 1h30m Minimum 1.5m 0.8m 0.5m UKC Max Draft Ruling Depth 5.8m 5.0m 4.5m Height of HoT Draft HoT Draft HoT Draft HW 4.2m m m m m m m m m m m m m m m m m m m

15 A4 Large Tanker Checklists LARGE TANKER ARRIVAL Tanker: ETA: Draft: POB: LOA: HW Times: IMO: VCN: Responsibility Task Comments Harbour Master Port Engineer Harbour Master Port Assistant Dundee Boatmen From initial intimation of arrival complete maximum drafts and pass to agents Check mooring winches, power on and lights in vicinity working Advise operations of 45 minutes before HW; Port assistant to confirm with Operations supervisor Advise boatmen of arrival time Ensure mooring boat is checked out and engine run and all is in order. Harbour Master Deliver introduction letter and documentation to pilots 48 hours before arrival Harbour Master Port Engineer Port Marine Assistant Port Marine Assistant Dundee Boatmen Port Marine Assistant Inform West Gate Security of updated ETA and ETD. Prior to berthing check mooring hooks are reset, capstans working and diversion signs have been put in place. Prior to berthing in darkness ensure light towers on PAW are on. Check PAW and KGW are clear of obstructions Advise Nynas of berthing time Ensure all messenger and mooring straps are recovered After berthing check all barriers, road signs cones and security are in place along with gangway safety sign 15

16 A5 Gangway Rigging Drawing 16