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Displaying items by tag: Dublin Bay Project

#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

Ferry & Car Ferry News The ferry industry on the Irish Sea, is just like any other sector of the shipping industry, in that it is made up of a myriad of ship operators, owners, managers, charterers all contributing to providing a network of routes carried out by a variety of ships designed for different albeit similar purposes.

All this ferry activity involves conventional ferry tonnage, 'ro-pax', where the vessel's primary design is to carry more freight capacity rather than passengers. This is in some cases though, is in complete variance to the fast ferry craft where they carry many more passengers and charging a premium.

In reporting the ferry scene, we examine the constantly changing trends of this sector, as rival ferry operators are competing in an intensive environment, battling out for market share following the fallout of the economic crisis. All this has consequences some immediately felt, while at times, the effects can be drawn out over time, leading to the expense of others, through reduced competition or takeover or even face complete removal from the marketplace, as witnessed in recent years.

Arising from these challenging times, there are of course winners and losers, as exemplified in the trend to run high-speed ferry craft only during the peak-season summer months and on shorter distance routes. In addition, where fastcraft had once dominated the ferry scene, during the heady days from the mid-90's onwards, they have been replaced by recent newcomers in the form of the 'fast ferry' and with increased levels of luxury, yet seeming to form as a cost-effective alternative.

Irish Sea Ferry Routes

Irrespective of the type of vessel deployed on Irish Sea routes (between 2-9 hours), it is the ferry companies that keep the wheels of industry moving as freight vehicles literally (roll-on and roll-off) ships coupled with motoring tourists and the humble 'foot' passenger transported 363 days a year.

As such the exclusive freight-only operators provide important trading routes between Ireland and the UK, where the freight haulage customer is 'king' to generating year-round revenue to the ferry operator. However, custom built tonnage entering service in recent years has exceeded the level of capacity of the Irish Sea in certain quarters of the freight market.

A prime example of the necessity for trade in which we consumers often expect daily, though arguably question how it reached our shores, is the delivery of just in time perishable products to fill our supermarket shelves.

A visual manifestation of this is the arrival every morning and evening into our main ports, where a combination of ferries, ro-pax vessels and fast-craft all descend at the same time. In essence this a marine version to our road-based rush hour traffic going in and out along the commuter belts.

Across the Celtic Sea, the ferry scene coverage is also about those overnight direct ferry routes from Ireland connecting the north-western French ports in Brittany and Normandy.

Due to the seasonality of these routes to Europe, the ferry scene may be in the majority running between February to November, however by no means does this lessen operator competition.

Noting there have been plans over the years to run a direct Irish –Iberian ferry service, which would open up existing and develop new freight markets. Should a direct service open, it would bring new opportunities also for holidaymakers, where Spain is the most visited country in the EU visited by Irish holidaymakers ... heading for the sun!