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A Harbour Seal photographed at Dun Laoghaire Marina on Dublin Bay, Ireland. Also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinnipeds, they are found in coastal waters of the northern Atlantic and Pacific oceans, Baltic and North seas. Photo: AfloatA photograph of a Harbour Seal taken at Dun Laoghaire Marina on Dublin Bay, Ireland. Also known as the common seal, this species can be found along temperate and Arctic marine coastlines throughout the Northern Hemisphere. They are the most widely distributed species of pinnipeds and can be found in the coastal waters of the northern Atlantic and Pacific oceans, as well as the Baltic and North Seas. Photo: Afloat

Displaying items by tag: dredge

The Department of Agriculture, Food and the Marine (DAFM), the harbour authority for Howth Harbour Fishery Centre in North County Dublin, is proposing to dredge seabed material from within the harbour to provide better water access to the fishing, leisure, and RNLI craft using the harbour.

Silting of the harbour and the subsequent dredging conversation has been an ever-present challenge for the harbour over the past two decades. 

It is proposed to reuse the material to create an area for the public realm on the west side of the West Pier.

The volume of material to be removed is approximately 240,000m3, and the area to be created is approximately 4.8ha.

The reclaimed area would be used for public realm, water access for leisure users, car parking and hard standing areas that can be used for storage areas for existing harbour leisure users and the harbour authority. In the future, some of the area created may be converted to light industrial/ commercial use to support harbour operations. Such future use is not part of the proposed development being considered at present.

Howth Harbour in North County DublinHowth Harbour in North County Dublin

The harbour was upgraded in the 1980s when the Syncrolift, the berthage face along the west pier, the present middle pier, the internal breakwater, and the marina area were constructed.

Enhancement of water depths within the harbour area is now required to maintain safe access to the harbour during any tide state. This is necessary because of increased fishing vessel sizes, siltation, and a desire to improve the usable water area. Lack of sufficient water depths due to siltation in the vicinity of the public and RNLI slipways is resulting in restricted access to the water for the public and RNLI rescue craft at low tide.

To this end, the DAFM are preparing a planning application, EIAR and NIS for a proposed dredging and reclamation project at Howth Harbour FHC.

While a town hall public consultation exercise would normally be undertaken to inform the preparation of a planning application with an EIAR, because of COVID restrictions, this public consultation exercise is being undertaken virtually.

Howth harbour dredging plansDetails of the West Pier's proposed design, utilising the spoil from the dredging

Proposed Howth Harbour Development

The proposed development will be the subject of a planning application by the Department of Agriculture, Food and the Marine and relates to the following main elements:

  • Dredging of the harbour and reclamation of land on the west side of the West Pier using treated dredge material;
  • The dredge material will be treated using soil stabilisation techniques prior to placement in the reclamation area. This will improve the strength of soil, bind in contaminants and minimise the potential for leachate;
  • Coastal protection works to the perimeter of the reclaimed area;
  • Landscaping on the reclaimed area and construction of footways, roadways and parking areas;
  • Construction of viewing points and a slipway for access to the water;
  • Construction of storage areas for harbour activities;
  • Provision of necessary services.

If you would like to submit your comments or feedback, you can do so at:

[email protected]

Comments must be submitted before 2300hrs (11pm) Friday 09 April 2021

Download the full proposal below (7mb)

Published in Dredging
Tagged under

#portsandshipping – Dredging at the breakwater of Rosslare Europort of sand which built up in the storms of January and February this year is to begin during week commencing 30th November.

The movement of sand which took place along the breakwater over two weeks of severe storms in late January and early February 2014 was estimated up to 100,000 m3, unprecedented given the typical annual average levels of 11,000m3. As a result, Berth 4 has been out of use since then, and there have also been some navigation restrictions.

Iarnród Éireann, the Port Authority for Rosslare Europort, applied for and has now received a foreshore licence and a dredging licence to proceed with the dredging works to restore the Europort to normal working conditions.

The sand removed from the Europort by its contractor will be placed just outside low water at Rosslare Strand, and it is expected to be carried up onto the beach there to replenish it. This is a repetition of the strategy successfully followed at the last dredging in 2011, and follows consultation with the Environmental Protection Agency and the Department of the Environment and licence approval.

Iarnród Éireann has allocated funding of €1.4m for this project, and the dredging work is expected to take approximately three weeks. Normal port operations will continue throughout these works.

Published in Rosslare Europort

#dunmoreeast – The Minister for Agriculture, Food and the Marine, Simon Coveney TD, today announced details of a €4m dredging project at Dunmore East Fishery Harbour Centre on the occasion of the official opening of a €450,000 renovation of the Marine Leisure Area at the western end of the harbour.
At the opening, the Minister said "I am delighted to officially open this. The completion of this project adds greatly to the Harbour for marine activities generally. This end of the Harbour was in need of revamping for some time, and I prioritised works to make it a fit for purpose amenity which will benefit and promote the marine leisure industry in this area".
Leisure activity in Dunmore East has been increasing substantially in recent years with 180 visiting yachts from all over Ireland and abroad using the harbour in 2013, more than a threefold increase on previous years. Cruise line passengers nearly doubled in 2013 to 9,500 and with the newly renovated slipway it is expected that usage by members of the public will double in 2014 from around 600 in 2013.
The €450,000 renovation included extending the existing slipway, widening it from five to twelve metres, resurfacing and generally improving vehicle and pedestrian access, the development of a promenade with street lighting, improved access to the beach, and a rock armour embankment to protect the development from severe weather conditions.

Commenting on the works the Minister said "This is an excellent piece of infrastructure and is now a top class amenity which will lend itself to the further development of the leisure industry in Dunmore East, and the spin off that will have for tourism and jobs locally".
Announcing the €4m dredging project for Dunmore East to resolve the impacts of years of siltation in the harbour, which has restricted vessel traffic and made manoeuvrability and fish landings problematic for fishermen the Minister said "This significant investment in Dunmore East from the 2014 Fishery Harbour Capital Programme is an indication of this Government's commitment to the fishing industry in the South East. When complete, not only will the harbour be more accessible to larger vessels, landing times and management will be much improved as will the usability of the syncrolift".
Latest figures indicate that the value and volume of fish landings in Dunmore East has been on the increase for a number of years. Between 2010 and 2013 landings increased by 40% from 8,387 tonnes to an estimated 11,718 tonnes. The equivalent value of these landings went from €13.7m in 2010 to an estimated €17.5m in 2013 an increase of 28%.
The Minister went on to say "Taking account of the increased level of fish landings I am conscious of the need to dovetail the much needed dredging works with the seasonal work patterns of the fishing industry to cause as little disruption as possible. With that in mind every effort will be made to ensure that the works will be completed in advance of the important herring fishery later in the year".
Groundwork for the project is well advanced; a public procurement exercise will be initiated in May, with a view to awarding the contract in time for an August commencement date.

Concluding the Minister said "The development and upkeep of Dunmore East as a state of the art Fishery Harbour Centre, supporting a broad range of marine related activities is and will remain an ongoing process. These two major projects and the recent installation of floating pontoons within the Harbour are part of a long term strategy to deliver on the potential of Dunmore East for job creation for the fishing industry and as a marine leisure and tourist destination".

Published in Coastal Notes

Waterways Ireland have advised all owners and masters of inland waterways vessels that the Barrow Line of the Grand Canal between the 21st Lock at Ballyteague and the 22nd Lock at Glenaree, will be closed to navigation from 16th Nov 2010 until 17th Mar 2011 to facilitate Waterways Ireland's winter dredging programme.

Published in Inland Waterways

For all you need on the Marine Environment - covering the latest news and updates on marine science and wildlife, weather and climate, power from the sea and Ireland's coastal regions and communities - the place to be is Afloat.ie.

Coastal Notes

The Coastal Notes category covers a broad range of stories, events and developments that have an impact on Ireland's coastal regions and communities, whose lives and livelihoods are directly linked with the sea and Ireland's coastal waters.

Topics covered in Coastal Notes can be as varied as the rare finding of sea-life creatures, an historic shipwreck with secrets to tell, or even a trawler's net caught hauling much more than just fish.

Other angles focusing the attention of Coastal Notes are Ireland's maritime museums, which are of national importance to maintaining access and knowledge of our nautical heritage, and those who harvest the sea using small boats based in harbours where infrastructure and safety pose an issue, plying their trade along the rugged wild western seaboard.

Coastal Notes tells the stories that are arguably as varied as the environment they come from, and which shape people's interaction with the natural world and our relationship with the sea.

Marine Wildlife

One of the greatest memories of any day spent boating around the Irish coast is an encounter with Marine Wildlife. It's a thrill for young and old to witness seabirds, seals, dolphins and whales right there in their own habitat. And as boaters fortunate enough to have experienced it will testify, even spotting a distant dorsal fin can be the highlight of any day afloat. Was that a porpoise? Was it a whale? No matter how brief the glimpse, it's a privilege to share the seas with Irish marine wildlife.

Thanks to our location in the North Atlantic, there appears to be no shortage of marine life to observe. From whales to dolphins, seals, sharks and other ocean animals, the Marine Wildlife category documents the most interesting accounts around our shores. And we're keen to receive your observations, your photos, links and video clips, too!

Also valuable is the unique perspective of all those who go afloat, from coastal sailing to sea angling to inshore kayaking to offshore yacht racing, as what they encounter can be of great importance to organisations such as the Irish Whale and Dolphin Group (IWDG). Thanks to their work we now know we share the seas with dozens of species who also call Ireland home. But as impressive as the list is, the experts believe there are still gaps in our knowledge. Next time you are out on the ocean waves, keep a sharp look out!

Weather

As an island in the North Atlantic, Ireland's fate is decided by Weather more so than many other European countries. When storm-force winds race across the Irish Sea, ferry and shipping services are cut off, disrupting our economy. When swollen waves crash on our shores, communities are flooded and fishermen brace for impact - both to their vessels and to their livelihoods.

Keeping abreast of the weather, therefore, is as important to leisure cruisers and fishing crews alike - for whom a small craft warning can mean the difference between life and death - as it is to the communities lining the coast, where timely weather alerts can help protect homes and lives.

Weather affects us all, and Afloat.ie will keep you informed on the hows and the whys.

Marine Science

Perhaps it's the work of the Irish research vessels RV Celtic Explorer and RV Celtic Voyager out in the Atlantic Ocean that best highlights the essential nature of Marine Science for the future growth of Ireland's emerging 'blue economy'.

From marine research to development and sustainable management, Ireland is developing a strong and well-deserved reputation as an emerging centre of excellence. Whether it's Wavebob ocean energy technology to aquaculture to weather buoys and oil exploration, the Marine Science category documents the work of Irish marine scientists and researchers and how they have secured prominent roles in many European and international marine science bodies.

Power From The Sea

The message from the experts is clear: offshore wind and wave energy is the future. And as Ireland looks towards the potential of the renewable energy sector, generating Power From The Sea will become a greater priority in the State's 'blue growth' strategy.

Developments and activities in existing and planned projects in the pipeline from the wind and wave renewables sector, and those of the energy exploration industry, point to the future of energy requirements for the whole world, not just in Ireland. And that's not to mention the supplementary industries that sea power projects can support in coastal communities.

Irish ports are already in a good position to capitalise on investments in offshore renewable energy services. And Power From The Sea can even be good for marine wildlife if done properly.

Aside from the green sector, our coastal waters also hold a wealth of oil and gas resources that numerous prospectors are hoping to exploit, even if people in coastal and island areas are as yet unsure of the potential benefits or pitfalls for their communities.

Changing Ocean Climate

Our ocean and climate are inextricably linked - the ocean plays a crucial role in the global climate system in a number of ways. These include absorbing excess heat from the atmosphere and absorbing 30 per cent of the carbon dioxide added to the atmosphere by human activity. But our marine ecosystems are coming under increasing pressure due to climate change.

The Marine Institute, with its national and international partners, works to observe and understand how our ocean is changing and analyses, models and projects the impacts of our changing oceans. Advice and forecasting projections of our changing oceans and climate are essential to create effective policies and management decisions to safeguard our ocean.

Dr Paul Connolly, CEO of the Marine Institute, said, “Our ocean is fundamental to life on earth and affects so many facets of our everyday activities. One of the greatest challenges we face as a society is that of our changing climate. The strong international collaborations that the Marine Institute has built up over decades facilitates a shared focusing on our changing ocean climate and developing new and enhanced ways of monitoring it and tracking changes over time.

“Our knowledge and services help us to observe these patterns of change and identify the steps to safeguard our marine ecosystems for future generations.”

The Marine Institute’s annual ocean climate research survey, which has been running since 2004, facilitates long term monitoring of the deep water environment to the west of Ireland. This repeat survey, which takes place on board RV Celtic Explorer, enables scientists to establish baseline oceanic conditions in Irish waters that can be used as a benchmark for future changes.

Scientists collect data on temperature, salinity, water currents, oxygen and carbon dioxide in the Atlantic Ocean. This high quality oceanographic data contributes to the Atlantic Ocean Observing System. Physical oceanographic data from the survey is submitted to the International Council for the Exploration of the Seas (ICES) and, in addition, the survey contributes to national research such as the VOCAB ocean acidification and biogeochemistry project, the ‘Clean Atlantic’ project on marine litter and the A4 marine climate change project.

Dr Caroline Cusack, who co-ordinates scientific activities on board the RV Celtic Explorer for the annual survey, said, “The generation of long-term series to monitor ocean climate is vital to allow us understand the likely impact of future changes in ocean climate on ecosystems and other marine resources.”

Other activities during the survey in 2019 included the deployment of oceanographic gliders, two Argo floats (Ireland’s contribution to EuroArgo) and four surface drifters (Interreg Atlantic Area Clean Atlantic project). The new Argo floats have the capacity to measure dissolved ocean and biogeochemical parameters from the ocean surface down to a depth of 2,000 metres continuously for up to four years, providing important information as to the health of our oceans.

During the 2019 survey, the RV Celtic Explorer retrieved a string of oceanographic sensors from the deep ocean at an adjacent subsurface moored station and deployed a replacement M6 weather buoy, as part of the Irish Marine Data Buoy Observation Network (IMDBON).

Funded by the Department of Agriculture, Food and the Marine, the IMDBON is managed by the Marine Institute in collaboration with Met Éireann and is designed to improve weather forecasts and safety at sea around Ireland. The data buoys have instruments which collect weather and ocean data including wind speed and direction, pressure, air and sea surface temperature and wave statistics. This data provides vital information for weather forecasts, shipping bulletins, gale and swell warnings as well as data for general public information and research.

“It is only in the last 20 years, meteorologists and climatologists have really began to understood the pivotal role the ocean plays in determining our climate and weather,” said Evelyn Cusack, Head of Forecasting at Met Éireann. “The real-time information provided by the Irish data buoy network is particularly important for our mariners and rescue services. The M6 data buoy in the Atlantic provides vital information on swell waves generated by Atlantic storms. Even though the weather and winds may be calm around our shores, there could be some very high swells coming in from Atlantic storms.”