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#DUBLIN BAY RIGS – The jack-up rig Excalibur returned to Dublin Bay yesterday, having previously carried out preliminary bore test-site drilling work last year for a new sewage pipeline. As reported last year the sight of several floating structures gave the distinct impression that oil had been struck and again the presence of the rig's purpose is further from true with no such oil-exploratory activity taking place, writes Jehan Ashmore.

The rig is in Dublin Bay for several weeks and is to carry out further site investigation to ascertain the most suitable route of a new under the seabed laid sewage pipeline for the €220m Dublin Bay Project, where the principle contractor for the project is Fugro Seacore.

According to Dublin City Council, the impact of the new outfall location on the outer fringe of Dublin Bay will be 'localised'. They also claim that the project is to further improve water quality in Dublin Bay. Under the terms of the waste-water discharge license issued by the EPA, the pipeline must be completed by 2015.

Currently wastewater is discharged at Ringsend where the the Wastewater Treatment Plant in processes a 1.9m population equivalent. The new outfall pipe and associated works is to address increased demand and will be able to increase the capacity to a 2.1m population equivalent.

The Excalibur was towed from Holyhead by the tug MTS Valiant, to a position close to the Dublin Bay Buoy, the primary navigational mark which acts a 'round-about' for shipping using Dublin Port. The Excalibur is essentially a large barge with several sea-legs than can be lowered onto the seabed, where upon the barge itself rests while hoisted above the waterline.

On board is a crane, porta-cabin like facilities for crew, a service workboat and a lifeboat. During the construction process there will be a guard-boat which will monitor other shipping activity, as a safety precaution. One of the first vessels to pass Excalibur was the 113,000 tonnes giant cruiseship Carribean Princess which edged cautiously by while outward bound yesterday for Belfast.

The treatment plant in Ringsend was built in 2003, in which the superior plant replaced an older facility closer to the Poolbeg Harbour at the foot of the now disused ESB Power Station. Up until then, two-thirds of the greater Dublin region was treated but only at this primary level where 60% of waster-water went straight through the facility into the Liffey, the balance of 40% had polluntants removed to form sludge which was disposed out at sea.

This uneviable of tasks was performed by the wastewater disposal vessel Sir Joseph Bazalgette (1963/2,258grt) which saw some 40m gallons discharged into the spoiling grounds off Dublin Bay and Kish Lighthouse.

The former London County Council commissioned vessel worked on the Thames until sold to Dublin Corporation. On occasions she would head back to port via a transit of Dalkey Sound.

Despite her sale to overseas buyers in 1999, she remains one of the largest vessel's in modern times to make a passage of the sound that marks the southern approaches to Dublin Bay.

Published in Dublin Bay

The 2024 Vendée Globe Race

A record-sized fleet of 44 skippers are aiming for the tenth edition of the Vendée Globe: the 24,296 nautical miles solo non-stop round-the-world race from Les Sables d’Olonne in France, on Sunday, November 10 2024 and will be expected back in mid-January 2025.

Vendée Globe Race FAQs

Six women (Alexia Barrier, Clarisse Cremer, Isabelle Joschke, Sam Davies, Miranda Merron, Pip Hare).

Nine nations (France, Germany, Japan, Finland, Spain, Switzerland, Australia, and Great Britain)

After much speculation following Galway man Enda O’Coineen’s 2016 race debut for Ireland, there were as many as four campaigns proposed at one point, but unfortunately, none have reached the start line.

The Vendée Globe is a sailing race round the world, solo, non-stop and without assistance. It takes place every four years and it is regarded as the Everest of sailing. The event followed in the wake of the Golden Globe which had initiated the first circumnavigation of this type via the three capes (Good Hope, Leeuwin and Horn) in 1968.

The record to beat is Armel Le Cléac’h 74 days 3h 35 minutes 46s set in 2017. Some pundits are saying the boats could beat a sub-60 day time.

The number of theoretical miles to cover is 24,296 miles (45,000 km).

The IMOCA 60 ("Open 60"), is a development class monohull sailing yacht run by the International Monohull Open Class Association (IMOCA). The class pinnacle events are single or two-person ocean races, such as the Route du Rhum and the Vendée Globe.

Zero past winners are competing but two podiums 2017: Alex Thomson second, Jérémie Beyou third. It is also the fifth participation for Jean Le Cam and Alex Thomson, fourth for Arnaud Boissières and Jérémie Beyou.

The youngest on this ninth edition of the race is Alan Roura, 27 years old.

The oldest on this ninth edition is Jean Le Cam, 61 years old.

Over half the fleet are debutantes, totalling 18 first-timers.

The start procedure begins 8 minutes before the gun fires with the warning signal. At 4 minutes before, for the preparatory signal, the skipper must be alone on board, follow the countdown and take the line at the start signal at 13:02hrs local time. If an IMOCA crosses the line too early, it incurs a penalty of 5 hours which they will have to complete on the course before the latitude 38 ° 40 N (just north of Lisbon latitude). For safety reasons, there is no opportunity to turn back and recross the line. A competitor who has not crossed the starting line 60 minutes after the signal will be considered as not starting. They will have to wait until a time indicated by the race committee to start again. No departure will be given after November 18, 2020, at 1:02 p.m when the line closes.

The first boat could be home in sixty days. Expect the leaders from January 7th 2021 but to beat the 2017 race record they need to finish by January 19 2021.

Today, building a brand new IMOCA generally costs between 4.2 and €4.7million, without the sails but second-hand boats that are in short supply can be got for around €1m.

©Afloat 2020

Vendee Globe 2024 Key Figures

  • 10th edition
  • Six women (vs six in 2020)
  • 16 international skippers (vs 12 in 2020)
  • 11 nationalities represented: France, United Kingdom, Switzerland, Germany, Italy, Belgium, Hungary, Japan, China, USA, New Zealand (vs 9 in 2020)
  • 18 rookies (vs 20 in 2020)
  • 30 causes supported
  • 14 new IMOCAs (vs 9 in 2020)
  • Two 'handisport' skippers

At A Glance - Vendee Globe 2024

The 10th edition will leave from Les Sables d’Olonne on November 10, 2024

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