MARICO Marine NZ Limited WELLINGTON HARBOUR PORT AND ...

More documents

Recommendations

Info

Report No: 05NZ104 WELLINGTON HARBOUR Issue: Issue 1.1 Operational Risk Assessment Rank No. Hazard Reference 57 71 Affected Areas Main Harbour, Lambton Harbour, Evans Bay Accident Category Seismic Event 58 73 Main Harbour Collision Hazard Title Tsunami Small Commercial and Lesiure Craft Conflict Hazard Detail Tsunami from locally generated event affects harbour with insufficient time for promulgation of warning to users. Seiching effect also possible. Small harbour ferry or other commercial vessel in potential collision situation with leisure craft in approaches to Days Bay wharf. Affected Vessel Types All Vessels, All Vessels Small Commercial, All Vessels Affected Stakeholders Seafarers Seafarers Possible Causes Local earthquake immediately generates seiche in harbour. Distant significant earthquake generates tsunami which enters harbour some hours after event. Underwater landslide offshore generates large waves which enter harbour shortly after event. Craft difficult to see from ferry in sunglare ,choppy conditions or poor visibility on approach. Craft unaware of ferry approach or departure, poor look out. No sound signal from ferry on apporach / departure. Ferry exceeds 5 knots within 200 metres of structure or shoreline. Ferry maneouvres off wharf while craft crossing stern or alongside. Kayak or small craft enter between hulls of catamaran ferry while alongside, ferry crew unable to detect presence prior to operating propulsion. Persons disregard warning signs on wharf or signage vandalised or otherwise missing / obscured. Inadequate safety briefing given to persons hiring small craft. Craft operated by person under influence of alcohol or drugs. Consequence Descriptions Most Likely (ML) Insignificant effect from a distant event and shipping not adversely affected. Near miss between ferry and craft but collision averted. Worst Credible (WC) Local event causes seiching in harbour. Berthed ships part moorings and damage cranes in surge. Cranes toppled with multiple fatalities. Product spill from tanker discharging. Grounding of ships in transit. Small craft washed ashore and broken up. Small craft crossing southern end of the wharf is run down by departing ferry with fatality. Risk By Consequence Category M L W C Greater Wellington Regional Council / CentrePort Ltd Page E33 of E41 People Property Environment Stakeholders People Property Environment Stakeholders Risk Overall 0 0 0 0 6 6 5 6 2.89 0 0 0 0 7 0 0 7 2.78 Remarks Wellington may be affected by either locally generated tsunami type waves, for which there may be little time available to notify shipping, For those generated by distant events, such as in the Pacific or Indian Ocean (causing waves which refract off the Antarctic ice shelf), a national warning system is in place to receive early warning of approaching tsunami. Centreport has an Incident Action Plan covering tsunami. Section 11 of the NZ Nautical Almanac contains information on procedure in the event of earthquake. Although a distant earthquake event may not cause tsunami of damaging magnitude to reach NZ, long waves may still affect predicted tide times and heights to a degree which may be significant for the transit of deep draught vessels through Wellington and other harbours. Does the NZ warning system warn of any size tsunami approaching the coast to enable movement planning to take possible effects of even small amplitude but long waves into consideration? For example recent Indonesian event Rowing boats and kayaks are hired during summer months and launched from the beach adjacent to the wharf. Days Bay beach and nearby bays are popular areas for a range of acquatic activity, particularly kayaking. Generally few problems are reported but potential for Worst Credible outcome exists if the ferry accelerates away from wharf on departure and is unable to stop on meeting a small craft emerging from under or around the end of the wharf.
Report No: 05NZ104 WELLINGTON HARBOUR Issue: Issue 1.1 Operational Risk Assessment Rank No. Hazard Reference 59 32 Affected Areas Lambton Harbour Approaches, Entrance, Main 60 25 Harbour, Evans Bay Accident Category Collision Collision 61 37 Evans Bay Collision Hazard Title Hazard Detail Kayak in collision with Kayak and vessel sailing other vessel in from a Conflict commercial wharf area. Leisure Craft and Kayak in Conflict Windsurfer and Other Vessel or Craft Conflict Affected Vessel Types Kayak, All Vessels Affected Stakeholders Seafarers Power driven leisure craft and kayaker in Leisure Craft, developing Leisure Craft collision other than Lambton Harbour. Seafarers Windsurfer and other vessel or craft in developing collision situation in Evans Bay Windsurfer, Leisure Craft Seafarers Possible Causes Kayak paddling around and under wharves not visible to vessel crew. Kayak paddling in prohibited area, kayaker not aware of this area or lacks general maritime knowledge. Poor safety briefing given to hired kayak. Kayak not seen in glare off water. Power driven vessel navigating at speed within 200 meters of shore, bylaw disregard. Poor lookout on power driven vessel, particularly if excessively trimmed by stern. Kayaks difficult to detect in reflected sunlight or choppy conditions. Poor lookout, made more difficult by spray. High relative speed of approach in crossing situation. Heavy concentration of windsurfers from both directions. Windsurfer falls off in path of leisure craft or vessel. Leisure craft operator or windsurfer lacks general maritime knowledge and is inattentive. Sunglare impedes lookout. Consequence Descriptions Most Likely (ML) Member of crew notices kayak around wharf area and departure delayed until clear. Close quarters situation but collision averted. Close quarters situation through manoeuvrability of windsurfer, collision averted. Worst Credible (WC) Kayak directly in path of ferry coming out of berth and is run down with likely fatality. Risk By Consequence Category M L W C Greater Wellington Regional Council / CentrePort Ltd Page E34 of E41 People Property Environment Stakeholders People Property Environment Stakeholders Risk Overall 0 0 0 0 7 0 0 7 2.78 Power driven vessel navigating at speed close to shore runs 0 0 0 0 7 0 0 7 2.78 down two-seater kayak with potential for fatality. Power driven craft runs down windsurfer in water (falls in front of power craft) with potential for fatality. 0 0 0 0 7 0 0 7 2.78 Remarks The Harbours Department regularly audits the safety briefing given to kayak hirers to ensure that necessary safety information is given. There is less control of independent kayakers where general lack of maritime knowledge amongst leisure users is an issue. Kayaking activity is rapidly increasing in NZ. Kayaks also need to be aware of the requirements of existence of water ski lanes and areas reserved for PWC's and avoid crossing these areas while in use. Kayakers may not be aware of the lowvisibility of their craft to other vessels. Kayaks may be encountered in any part of the harbour but particularly close to shore in Oriental and Evans Bay, the eastern bays and around Somes Island. Conflict between other craft and kayaks is also covered specifically in Hazard 32, 'Kayak and other vessel conflict, Lambton Harbour'. In fresh Northerly conditions Evans Bay is a popular windsurfing area, particularly between Shelly Bay and Snapper Point. Other leisure users need to be especially vigilant navigating through this area as windsurfers approach at high speed from both sides. Conflicts between commercial movements such as tankers and windsurfers are also possible although of lower probability given the low frequency of tanker movements through Evans Bay.
Page 1 and 2:
WELLINGTON HARBOUR PORT AND HARBOUR
Page 3 and 4:
Report No: 05NZ104 WELLINGTON HARBO
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Rank No. Hazard Reference Report No
Page 75 and 76:
Rank No. Hazard Reference 24 2 Repo
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106: Report No: 05NZ104 WELLINGTON HARBO
Page 155: Report No: 05NZ104 WELLINGTON HARBO
show all

MARICO Marine NZ Limited WELLINGTON HARBOUR PORT AND ...

Create successful ePaper yourself

Delete template?

Save as template?