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Author Topic: Celtica Hav - Aground  (Read 5012 times)
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« on: October 29, 2008, 11:06:46 am »

Hi All

This piece from the BBC web site @ http://news.bbc.co.uk/1/hi/scotland/tayside_and_central/7697053.stm

Photograph of the Celtica Hav can be seen @ http://www.shipspotting.com/modules/myalbum/photo.php?lid=685427

 Ship grounds above gas pipeline

A cargo ship has run aground off Elcho Castle in the Tay estuary, near Perth, with the bow resting above an underwater natural gas pipeline.

The Bahamian registered Celtica Hav was carrying wheat into Perth Harbour about 0330 GMT when she grounded.

The seven crew on board are uninjured, and Forth coastguard hope to refloat the ship at the next high tide at about 1530 GMT.

Shell has said the pipeline is 2.75m under the river bed.

It carries natural gas between St Fergus, in Aberdeenshire, and Mosmorran, in Fife, and is encased in concrete.

The pipeline operation is unaffected and is not being shutdown.

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Craig Saunders
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« Reply #1 on: October 29, 2008, 04:29:24 pm »

That could of been nasty if the pipe ruptured! Do you know how she ran aground Steve?
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[color=CC0000]Craig[/color]
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« Reply #2 on: October 29, 2008, 04:44:43 pm »

Quote

craig01 wrote:
That could of been nasty if the pipe ruptured! Do you know how she ran aground Steve?


Hi Craig

No mention of power loss of mechanical problems so I would guess a navigational mistake?

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Craig Saunders
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« Reply #3 on: October 29, 2008, 05:43:16 pm »

I'm amazed that incidents like this still happen, especially with todays technology! :lol:
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« Reply #4 on: October 29, 2008, 05:52:23 pm »

Quote

craig01 wrote:
I'm amazed that incidents like this still happen, especially with todays technology!


Hi Craig

If you are interested in reading more about the causes of ship groundings - aim your browser at this thesis:
www.skk.mek.dtu.dk/upload/institutter/mek/skk/pdf/phd_afhandlinger/bcs.pdf

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« Reply #5 on: October 29, 2008, 06:03:53 pm »

Cheers Steve, I'll have a read! :-D
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« Reply #6 on: October 30, 2008, 08:19:44 am »

Hi All

This 'follow up' courtesy of The Press & Journal @ http://www.pressandjournal.co.uk/Article.aspx/912870?UserKey=

"Refloated ship docks at Perth harbour boat grounded above gas pipeline arrives

By Alison Middleton and Mark Dowie

Published: 30/10/2008

A SHIP which ran aground above a gas liquids pipeline arrived in Perth harbour last night.

The Celtica Hav was successfully refloated in the River Tay yesterday afternoon following the high tide.

It is understood the vessel’s crew of seven remained on board after the flat-bottomed ship grounded in waters beside Elcho Castle, near Perth, at 3.30am.

The bow of the vessel, which was transporting grain, was left resting above the Shell-operated pipeline which carries natural gas liquids from its gas plant at St Fergus in Aberdeenshire to Mossmorran in Fife.

No one was injured in the incident, and the Perth harbour tug boat The Fair Maid was able to help the ship at high tide when efforts to refloat the vessel got under way.
Tide

A spokeswoman for Perth and Kinross Council said the ship is now berthed in the harbour and will unload her cargo today.

She said: “The vessel was en route to Perth harbour from Germany with a cargo of wheat.

“Preliminary indications are that the grounding may have been caused by an unpredicted drop in the tide.”

She added that there was no impact on river traffic on the Tay as a result of the grounding.

A spokesman for Forth Coastguard said the boat floated free on her own at around 2.40pm as the tide rose and then continued her journey to Perth.

Coastguard watch officer Bob Bruce said: “She refloated herself, she just came off with the tide. We didn’t need to do anything.”

A spokesman for Shell said the pipeline which carries ethane, propane and butane remained operational and was not affected by the accident. He added: “The line runs from St Fergus near Peterhead to Mossmorran at Cowdenbeath, about 224km (139 miles) in length.

“It’s a 20in diameter steel pipeline which crosses the Tay at Elcho, about four miles from Perth, and at the river crossing it’s buried about two and three-quarter metres (almost 10ft) below the riverbed and has a protective concrete coating around it.

“We had a pipeline engineer at the location and he was monitoring the situation for us.

“As a matter of course I’d think there would be an inspection after the incident cleared.”

The incident comes two weeks after an explosion rocked a Total testing facility at St Fergus, near Peterhead.

Dozens of emergency vehicles were called to the Total E&P UK sector of the St Fergus terminal following a blast in its test facility on October 14.

The laboratory where the fire took place is used to sample gas coming ashore from North Sea fields, but the three workers who were inside at the time walked away with minor injuries.

The terminal receives and processes about a fifth of the UK’s daily gas requirements."

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« Reply #7 on: October 31, 2008, 10:23:18 am »

Hi All

Courtesy of The Press & Journal web site @ http://www.pressandjournal.co.uk/Article.aspx/914825?UserKey=

'Stranded ship leaves Perth unscathed

Celtica Hav ran aground above gas pipeline in River Tay on Wednesday

By Alison Middleton

Published: 31/10/2008

THE ship which was stranded in the River Tay left Perth harbour in the early hours today.

The Celtica Hav ran aground above a gas liquids pipeline in waters beside Elcho Castle, near Perth, on Wednesday.

It is believed the bow of the flat-bottomed vessel came to rest above the Shell pipeline following an unpredicted drop in the tide.

The cargo ship was successfully refloated at high tide and she later berthed at Perth harbour.

Work to unload her cargo of wheat got under way yesterday and was completed by mid-afternoon.

A spokeswoman for the Maritime and Coastguard Agency (MCA) confirmed an agency surveyor was at Perth harbour.

She said: “As far as we can ascertain there isn’t any damage to the vessel.”

It is understood the boat will now head to Buckie, where a diver will complete an underwater investigation.

A spokeswoman for Perth and Kinross Council said the ship had been checked. The Shell pipeline, which carries ethane, propane and butane, remained operational and was unaffected.'

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« Reply #8 on: July 08, 2009, 05:48:23 am »

The Maritime Accident Investigation Branch have published the results of their Preliminary Investigation of this incident and can be seen @ http://www.maib.gov.uk/publications/completed_preliminary_examinations/completed_preliminary_examinations_2009/celtica_hav.cfm

"Synopsis

On 29 October 2008, Celtica Hav was on passage to Perth, Scotland, carrying a cargo of wheat. The weather conditions were good. After embarking a local pilot at 0115 UTC, speed was adjusted to ensure that the vessel arrived over the Shell NGL pipeline, the shallowest part of the route, at about high water.

As the vessel approached the pipeline, port control advised the pilot that the reading on the Ribny tide gauge was 4.3m. This indicated that the vessel would have minimal clearance over the pipeline; speed was reduced to 3 knots to minimise the effect of squat, and the vessel’s course was adjusted to keep her in the deepest part of the navigable channel. Celtica Hav grounded as she passed over the Shell gas pipeline at 0300.

There were no injuries to persons, or pollution, and the vessel was refloated at the following high water.

Action taken:

Perth and Kinross Council, the port operator, has increased the minimum under keel clearance required for a vessel to pass over the pipeline. It has also recalibrated the Ribny tide gauge and commissioned consultants to examine options for improving navigational safety in the vicinity of the pipeline.

Shell UK Ltd commissioned a study to assess the effect of vessels grounding on the pipeline. The study concluded that the stresses generated by the grounding of Celtica Hav and other vessels of similar size were within acceptable limits.

The Chief Inspector of Marine Accidents has written to Perth and Kinross Council, recommending it to:

Ensure that the recently increased minimum under keel clearance required by vessels passing over the Shell NGL pipeline is strictly adhered to, and that the risks associated with any proposed dredging in the vicinity of the pipeline are fully assessed in consultation with key stakeholders.

      Published: JULY 2009"

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