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The Arkea Ultim Challenge - Brest, which starts from Brest, France, on Sunday, 7th, January, will be the first-ever solo race around the world on giant Ultim trimarans, the biggest and fastest ocean-going sailboats in the world.

There are many different round the world challenges under sail – solo and crewed – but this challenge sees six solo skippers preparing to push the boundaries of singlehanded racing to a new extreme.

Sailing around the world by boat was initially just done on monohulls.
It was Sir Robin Knox Johnston who really threw down the gauntlet when he won the Golden Globe Race in 1967, 313 days. But not long after that came the time of the multihulls, and the solo records have increasingly become the domain of the big multis.

Now, in Brest, some six years later, six sailors are getting ready to conquer the oceans singlehanded. The six competitors of the Arkea Ultim Challenge - Brest are Charles Caudrelier (Maxi Edmond de Rothschild), Thomas Coville (Sodebo Ultim 3) Tom Laperche (SVR - Lazartigue), Armel Le Cléac'h (Banque Populaire XI), Anthony Marchand (Actual Ultim 3) and Éric Péron (ADAGIO) - subject to qualification.Now, in Brest, some six years later, six sailors are getting ready to conquer the oceans singlehanded. The six competitors of the Arkea Ultim Challenge - Brest are Charles Caudrelier (Maxi Edmond de Rothschild), Thomas Coville (Sodebo Ultim 3) Tom Laperche (SVR - Lazartigue), Armel Le Cléac'h (Banque Populaire XI), Anthony Marchand (Actual Ultim 3) and Éric Péron (ADAGIO) - subject to qualification

Colas, forever the first


It was some 50 years ago, in 1973, that one man attempted the solo challenge aboard a multihull. The pioneer’s name was Alain Colas, and he retains an important place in sailing history, especially as he only discovered the sea at the age of 22, training alongside the legendary Éric Tabarly, from whom he bought the 1968 built 20.8m aluminium trimaran Pen Duick IV. Colas dreamed of being the first to complete a round-the-world passage on a multihull. He started at the same time as the competitors in the first Whitbread (the crewed round-the-world race with stops) Despite technical problems, carbon dioxide poisoning, a month-long stop in Sydney and crossing “the land of misery” as he described the Southern Oceans, he returned to Saint-Malo in 169 days

Thirteen years later, two different sailors set off to tackle this record: Philippe Monnet and Olivier de Kersauson. Monnet was the first to set off and got to the finish with two stops, but he lowered it by no less than 40 days. De Kersauson then also stopped twice and also got snared by the Doldrums but lowered the record by 4 days.

The 21st century, and the record drops all the time

Actually it is the 21st century when a meaningful solo non stop multihull record benchmark is set and the solo round the world challenge really gained momentum. After it was sailed fully crewed to the Trophée Jules Verne record as Sport Elec a few years earlier, Frances Joyon defied the sceptics in February 2004, sailing on the same powerful 90ft trimaran to become the first solo non-stop circumnavigator on a multihull when he laid down a record of 72 days 22hours. He set out looking to better Michel Desjoyeaux’s solo record of 93 days and smashed it.

After her Vendée Globe success British sailor Ellen MacArthur had built a 75ft trimaran to challenge for the all out record and went on to lower Joyon’s record by 32 hours. Joyon had IDEC II built and lowered the solo record to a seemingly remarkable 57 days 13 hours.

Then came Thomas Coville, who made no fewer than five attempts, including two complete circumnavigations, without breaking the record (2009, 2011) before he lowered the mark to 49 days 3hrs, finishing in Brest on Christmas Day 2016, declaring that "ten years of work have come to fruition". Coville had developed a formula for his setbacks: “I tried, I failed, I fell, I got up, I rebuilt myself”.

That record stood until 2017 when the 34-year-old François Gabart set the current record at 42 days, 16 hours, and 40 minutes on his first attempt. He had the winning touch, triumphing in the Vendée Globe (2013), the Route du Rhum (2014), the Transat Jacques Vabre (2015) and the Transat (2016). With sponsor Macif, he built a new boat: the cockpit is closed for the first time, the tri is much lighter (14 tonnes), and it is built for solo sailing. “In order to beat the record, you need good weather, luck and success,” explained Gabart on his arrival in Brest. He got all three and the record stands today.

Non stop records

  • 2017 42d 16h 40m 35 François Gabart (FRA) Macif Trimaran 100 ft, Finished 17/12 Still the second fastest outright circumnavigation time.
  • 2016 49d 3h 7m 38s Thomas Coville (FRA) Sodebo Ultim ( previously Geronimo) Trimaran 102 ft Finished on 25/12/2016. 

  • 2008 57d 13h 34m 06s Francis Joyon (FRA) IDEC 2 Trimaran 97 ft, Finished on 19/12/2008

  • 2005 71d 14h 18m 33s Ellen MacArthur (UK) B&Q/Castorama Trimaran 75 ft Finished 08/02
  • 2004 72d 22h 54m 22s Francis Joyon (FRA) IDEC (formerly Poulain) Trimaran

Now, in Brest, some six years later, six sailors are making ready to conquer the oceans singlehanded. Bear in mind record attempts inherently wait – often many weeks – for the perfect weather window, whereas the ARKEA ULTIM CHALLENGE - Brest, in theory, starts on an arbitrary day at a fixed time, and so it is unlikely that Gabart’s record will be broken.

The six competitors of the Arkea Ultim Challenge - Brest

  • Charles Caudrelier (Maxi Edmond de Rothschild)
  • Thomas Coville (Sodebo Ultim 3)
  • Tom Laperche (SVR - Lazartigue)
  • Armel Le Cléac'h (Banque Populaire XI)
  • Anthony Marchand (Actual Ultim 3)
  • Éric Péron (ADAGIO) - subject to qualification.

Five rules from the Sailing Instructions

The start line is kept open for 168 hours, and the finish line is closed after an elapsed time of 100 days after the start time, that is to say, 16th April 2024.

The skippers can communicate and exchange with their teams on shore, so they have the freedom to get weather information, be routed by their team on shore, and get technical help and advice to help with technical problems.

The solo skippers can stop but there are two distinct operations. A technical stop is unassisted and requires the sailor to drop anchor, take a mooring, or tie up alongside an anchored or moored boat with no external help. There is no time penalty for a technical stop. But for a technical stopover (escale technique) where one or more crew or technical team come on board to help there is a mandatory 24 hours minimum. This does not apply to the start port of Brest where all means are authorized to reach or leave the port within a radius of 50 miles.

For the first time in ocean racing zones where there are known to be a high concentration of whales and sea mammals are determined. Establishing these zones should both protect the marine wildlife and reduce the chance of a collision. These zones are established with Share The Ocean and are around the Azores, the Canaries, south of South Africa, the Kerguelens and parts of the Antarctic.

There are ice exclusion zones to protect the skippers and their boats.

Published in Ultim Challenge
Tagged under

The weekly Global Sailing Highlights show, the World on Water, for the week ending December 22, 2023, features six "Giants of the Seas" to set off from Brest, with a solitary skipper on board, who will attempt to complete a circumnavigation of the world from West to East, via the three capes (Good Hope, Leeuwin and Horn).

A human and technological challenge is carried by the sailors of the Ultim 32/23 Class accompanied by their shipowners and partners.

Some of them have already completed the journey in a multihull and single-handed: Francis Joyon, Dame Ellen MacArthur, Thomas Coville, François Gabart, notably as part of solo round-the-world record sailing campaigns, but no one has ever done it in a race!

Published in Maritime TV
Tagged under

After passing Madeira, out of a high-pressure ridge and speeding up in the trade winds on Thursday (2 November), the five Ultims on the Transat Jacques Vabre race from Le Havre to Martinique are now into good weather with pleasant seas.

The leaders are speeding south to the Cape Verde islands, which they were expected to pass on Friday (3 November).

Armel Le Cléac'h and Tom Laperche on Maxi Banque Populaire XI, which gained the lead yesterday off Madeira, is still in front clocking up speeds of around 35 knots and extending their lead.

In conditions that are ideal for higher speeds, the duos on are working hard to get the most out of their machines, which continue to impress everyone as they make their rapid passage down through the North Atlantic. In these trade winds, they can rely on the autopilot.

The chase is on as they head towards the doldrums, which they should reach on Saturday (4 November) on their way towards the islands of São Pedro and São Paulo, almost exactly in the middle of the Atlantic on the axis between the north-east corner of Brazil and Sierra Leone in Africa.

“The sun is coming up. It’s nice, as we are in our T-shirts with the little fan going in the bunk,” said Anthony Marchand aboard Actual Ultim 3. “We have 1.5m high waves with at least 20 knots of wind getting up to 25-27. The boat is speeding along at full pelt, dancing around and slamming down violently, which is her normal behaviour.” In spite of the relatively straightforward conditions, however, they need to be on high alert.

Stress at high speed

“There is a stressful aspect to this,” said Marchand, who has the support of Thierry Chabagny to keep up the pace set by the boats ahead, which are all capable of higher speeds because they are newer than their boat which was previously the first maxi tri Macif.

“Just now, we reached a peak speed of 40-45 knots. Everything vibrates and creaks. You can feel that the boat is working hard. She raises herself up on one float from time to time taking us high up on one hull. This means a lot of trimming and quite a bit of stress. We settle into the watch seat. We have a wheel, which we keep turning to control the trim. We are under autopilot and we take care of the altitude we fly at.”

In third place in the rankings, the pair on SVR Lazartigue — which lost the lead off Madeira — are still hard at work. At this point in the race to Martinique, with the gaps widening and narrowing as the Ultims advance, it is all down to the little details.

In permanent contact with Jean-Yves Bernot and their weather team in Concarneau, François Gabart and Tom Laperche — who are now just over 90 miles behind the leaders on Maxi Banque Populaire XI — have plenty to do. Particularly as Sodebo Ultim 3 is ready to pounce, too, very close in terms of distance to the next waypoint slightly off to the east.

“François and I are seeing each other more often, as the watches are shorter, so that we can stay alert,” said Laperche, who admitted that in this race where speed is all, finding a precise trajectory is the key factor. “At the moment, we are having a lot of discussions with the routers. We’re talking about the trade winds, how they vary. People often think that in the trade winds it is easy, and you don’t have to do much, but when they are variable, you need to gybe and manoeuvre.”

The tracker shows that aboard the blue giant, they were busy Friday morning tacking away to get in line with those in front as they head for the Cape Verde islands, in order to avoid the wind shadow and stay in the north-westerly winds blowing at around 20 knots.

712 miles in 24 hours

The fleet is clearly so much more closely matched than before. And now tactical plays are key, with the crews maintaining speeds of 30-35 knots without any apparent problems.

Charles Caudrelier and Erwan Israël would not disagree, as they are keeping up the pace in second place aboard Maxi Edmond de Rothschild. It is now a matter of dealing with attacks from those behind, while trying to cope with Banque Populaire XI getting away from them after covering 712 miles in the last 24 hours. Chasing and being chased at the same time, they have put their foot down on the gas.

Looking ahead to the Intertropical Convergence Zone that they should all be entering on Saturday more towards the west, this Transat Jacques Vabre Normandie Le Havre is so far going smoothly for the five Ultim boats as time slips by with each passing island.

After Cape Verde, on Sunday (5 November) they are expected to pass São Pedro and São Paulo, the Brazilian islands in the middle of the Atlantic, which are quite close to the Equator. Yet more proof of just how quickly these flying maxi-multihulls are sailing.

General Information on using Waterways Ireland inland navigations

Safety on the Water

All users of the navigations are strongly recommended to make themselves aware of safety on the water for whatever activity they are involved in and to read the advice offered by the various governing bodies and by:

The Dept. of Transport, Ireland: www.gov.ie/transport and The Maritime and Coastguard Agency, UK, The RNLI – Water Safety Ireland for information in terms of drowning prevention and water safety.

Registration of Vessels

All vessels using the Shannon Navigation, which includes the Shannon-Erne Waterways and the Erne System must be registered with Waterways Ireland. Only open undecked boats with an engine of 15 horsepower or less on the Shannon Navigation, and vessels of 10 horsepower or less on the Erne System, are exempt. Registration is free of charge.

Craft registration should be completed online at: https://www.waterwaysireland.org/online-services/craft-registration

Permits for use of the Grand and Royal Canals and the Barrow Navigation

All vessels using the Grand and Royal Canals and the Barrow Navigation must display appropriate valid Permit(s) i.e A Combined Mooring and Passage Permit (€126) and if not intending to move every five days, an Extended Mooring Permit (€152).

Permit applications should be completed online at: https://www.waterwaysireland.org/online-services/canal-permits

Passage on the Royal and Grand Canals – Dublin Area

For boat passage through the locks east of Lock 12 into / out of Dublin on either the Royal or Grand Canals, Masters are requested to contact the Waterways Ireland Eastern Regional Office (M-F 9.30am-4.30pm) on tel: +353(0)1 868 0148 or email [email protected] prior to making passage in order to plan the necessary lock-keeping assistance arrangements.

On the Grand Canal a minimum of two days notice prior to the planned passage should be given, masters should note that with the exception of pre-arranged events, a maximum of 2 boats per day will be taken through the locks, travelling either east or west.

Movements in or out of the city will be organised by prior arrangement to take place as a single movement in one day. Boaters will be facilitated to travel the system if their passage is considered to be safe by Waterways Ireland and they have the valid permit(s) for mooring and passage.

Newcomen Lifting Bridge

On the Royal Canal two weeks’ notice of bridge passage (Newcomen Lifting Bridge) is required for the pre-set lift date, and lock assistance will then also be arranged. A minimum of 2 boats is required for a bridge lift to go ahead.

Waterways Ireland Eastern Regional Office (Tel: +353(0)1 868 0148 or [email protected] ) is the point of contact for the bridge lift.

A maximum number of boats passing will be implemented to keep to the times given above for the planned lifts (16 for the Sat / Sun lifts & 8 for the weekday lifts). Priority will be given on a first come first served basis.

On day of lift, boaters and passengers must follow guidance from Waterways Ireland staff about sequence of passage under bridge & through Lock 1, and must remain within signed and designated areas.

Events Held on the Waterways

All organised events taking place on the waterways must have the prior approval of Waterways Ireland. This is a twelve week process and application forms must be accompanied with the appropriate insurance, signed indemnity and risk assessment. The application should be completed on the Waterways Ireland events page at :

https://www.waterwaysireland.org/online-services/event-approval

Time Limits on Mooring in Public Harbours

On the Shannon Navigation and the Shannon-Erne Waterway craft may berth in public harbours for five consecutive days or a total of seven days in any one month.

On the Erne System, revised Bye Laws state that: No master or owner shall permit a vessel, boat or any floating or sunken object to remain moored at or in the vicinity of any public mooring, including mooring at any other public mooring within 3 kilometres of that location, for more than 3 consecutive days and shall not moor at that same mooring or any other public mooring within 3 kilometres of that location within the following 3 consecutive days without prior permission by an authorised official.

Winter Mooring on the Shannon Navigation and Shannon Erne Waterway

Winter mooring may be availed of by owners during the period 1 Nov to 31 Mar by prior arrangement and payment of a charge of €63.50 per craft. Craft not availing of Winter Mooring must continue to comply with the “5 Day Rule”. Winter Mooring applications should be completed online at : https://www.waterwaysireland.org/online-services/winter-moorings-booking

Owners should be aware that electricity supply and water supply to public moorings is disconnected for the winter months. This is to protect against frost damage, to reduce running costs and to minimise maintenance requirements during the winter months.

Vessel owners are advised that advance purchasing of electricity on the power bollards leading up to the disconnection date should be minimal. Electricity credit existing on the bollards will not be recoverable after the winter decommissioning date. Both services will be reinstated prior to the commencement of the next boating season.

Smart Cards

Waterways Ireland smart cards are used to operate locks on the Shannon Erne Waterway, to access the service blocks, to use the pump-outs along the navigations, to avail of electrical power at Waterways Ireland jetties.

Berthing in Public Harbours

Masters are reminded of the following:

  • Equip their vessel with mooring lines of appropriate length and strength and only secure their craft to mooring bollards and cleats provided for this purpose.
  • Ensure the available berth is suitable to the length of your vessel, do not overhang the mooring especially on finger moorings on floating pontoon moorings.
  • Ensure mooring lines, electric cables and fresh water hoses do not create a trip hazard on public jetties for others users.
  • Carry sufficient fenders to prevent damage to your own vessel, other vessels and WI property.
  • Allow sufficient space between your vessel and the vessel ahead /astern (c.1m) for fire safety purposes and /or to recover somebody from the water.
  • Do not berth more than two vessels side by side and ensure there is safe access/egress at all times between vessels and onto the harbour itself.
  • Do not berth in such a way to prevent use of harbour safety ladders, slipways or pump-outs.
  • Do not allow the bow of your vessel to overhang the walkway of a floating mooring thus creating a hazard for others with an overhanging anchor or bow fendering.
  • Animals are not allowed to be loose or stray at any time.
  • Harbour and jetty infrastructure such as railings, power pedestals, fresh water taps, electric light poles, safety bollards, ladders etc are not designed for the purpose of mooring craft , they will not bear the strain of a vessel and will be damaged.
  • At Carrybridge on the Erne System, Masters of vessels are not permitted to use stern on mooring. Masters of vessels must use the mooring fingers for mooring of vessels and for embarkation / disembarkation from vessels.

Passenger Vessel Berths

Masters of vessels should not berth on passenger vessel berths where it is indicated that an arrival is imminent. Passenger vessels plying the navigations generally only occupy the berths to embark and disembark passengers and rarely remain on the berths for extended periods or overnight.

Lock Lead-in Jetties

Lead-in jetties adjacent to the upstream and downstream gates at lock chambers are solely for the purpose of craft waiting to use the lock and should not be used for long term berthing.

Vessel Wake

Vessel wake, that is, the wave generated by the passage of the boat through the water, can sometimes be large, powerful and destructive depending on the hull shape and engine power of the vessel. This wake can be detrimental to other users of the navigation when it strikes their craft or inundates the shoreline or riverbank. Masters are requested to frequently look behind and check the effect of their wake / wash particularly when passing moored vessels, on entering harbours and approaching jetties and to be aware of people pursuing other activities such as fishing on the riverbank.

Speed Restriction

A vessel or boat shall not be navigated on the Shannon Navigation at a speed in excess of 5 kph when within 200 metres of a bridge, quay, jetty or wharf, when in a harbour or canal or when passing within 100 metres of a moored vessel or boat.

Vessels navigating the Shannon-Erne Waterway should observe the general 5 kph speed limit which applies along the waterway. This is necessary in order to prevent damage to the banks caused by excessive wash from vessels.

Vessels navigating the Erne System should observe the statutory 5kt / 6mph / 10kph speed limit areas.

A craft on the Royal and Grand canals shall not be navigated at a speed in excess of 6km per hour.

A craft on the Barrow Navigation shall not be navigated at a speed in excess of 11km per hour except as necessary for safe navigation in conditions of fast flow.

Bank Erosion

Narrow sections of all the navigations are particularly prone to bank erosion due to the large wash generated by some craft. Masters are requested to be vigilant and to slow down to a speed sufficient to maintain steerage when they observe the wash of their craft inundating the river banks.

Unusual Waterborne Activity

Unusual waterborne vessels may be encountered from time to time, such as, hovercraft or amphibious aircraft / seaplanes. Masters of such craft are reminded to apply the normal “Rule of the Road” when they meet conventional craft on the water and to allow extra room to manoeuvre in the interest of safety.

Sailing Activity

Mariners will encounter large numbers of sailing dinghies from late June to August in the vicinity of Lough Derg, Lough Ree and Lower Lough Erne. Sailing courses are marked by yellow buoys to suit weather conditions on the day. Vessels should proceed at slow speed and with due caution and observe the rules of navigation when passing these fleets, as many of the participants are junior sailors under training.

Rowing

Mariners should expect to meet canoes and vessels under oars on any part of the navigations, but more so in the vicinity of Athlone, Carrick-on-Shannon, Coleraine, Enniskillen and Limerick. Masters are reminded to proceed at slow speed and especially to reduce their wash to a minimum when passing these craft as they can be easily upset and swamped due to their very low freeboard and always be prepared to give way in any given traffic situation.

Canoeing

Canoeing is an adventure sport and participants are strongly recommended to seek the advice of the sport’s governing bodies i.e Canoeing Ireland and the Canoe Association of Northern Ireland, before venturing onto the navigations.

Persons in charge of canoes are reminded of the inherent danger to these craft associated with operating close to weirs, sluice gates, locks and other infrastructure particularly when rivers are in flood and large volumes of water are moving through the navigations due to general flood conditions or very heavy localised precipitation e.g. turbulent and broken water, stopper waves. Shooting weirs is prohibited without prior permission of Waterways Ireland.

Canoeists should check with lockkeepers prior entering a lock to ensure passage is done in a safe manner. Portage is required at all unmanned locks.

Canoe Trail Network – "Blueways"

Masters of powered craft are reminded that a canoe trail network is being developed across all navigations and to expect more organised canoeing along these trails necessitating slow speed and minimum wash when encountering canoeists, rowing boats etc

Rockingham and Drummans Island Canals – Lough Key

It is expected that work on Rockingham and Drummans Island Canals on Lough Key will be completed in 2021. Access to these canals will be for non-powered craft only, eg canoes, kayaks, rowing boats.

Fast Powerboats and Personal Watercraft (Jet Skis)

Masters of Fast Powerboats (speed greater than 17kts) and Personal Watercraft (i.e.Jet Skis) are reminded of the inherent dangers associated with high speed on the water and especially in the confines of small bays and narrow sections of the navigations. Keeping a proper look-out, making early alterations to course and /or reducing speed will avoid conflict with slower vessels using the navigation. Personal Watercraft are not permitted to be used on the canals.

Towing Waterskiers, Wakeboarders, Doughnuts etc

Masters of vessels engaged in any of these activities are reminded of the manoeuvring constraints imposed upon their vessel by the tow and of the added responsibilities that they have to the person(s) being towed. These activities should be conducted in areas which are clear of conflicting traffic. It is highly recommended that a person additional to the master be carried to act as a “look-out” to keep the tow under observation at all times.

Prohibition on Swimming

Swimming in the navigable channel, particularly at bridges, is dangerous and is prohibited due to the risk of being run over by a vessel underway in the navigation.

Age Restrictions on operating of powered craft

In the Republic of Ireland, Statutory Instrument 921 of 2005 provides the legal requirements regarding the minimum age for operating of powered craft. The Statutory Instrument contains the following requirements:

- The master or owner of a personal watercraft or a fast power craft shall take all reasonable steps to ensure that a person who has not attained the age of 16 years does not operate or control the craft

- The master or owner of a pleasure craft powered by an engine with a rating of more than 5 horse power or 3.7 kilowatts shall take all reasonable steps to ensure that a person who has not attained the age of 12 years does not operate or control the craft.

Lifejackets and Personal Flotation Devices (PFDs)

Lifejackets and PFD’s are the single most important items of personal protective equipment to be used on a vessel and should be worn especially when the vessel is being manoeuvred such as entering / departing a lock, anchoring, coming alongside or departing a jetty or quayside.

In the Republic of Ireland, Statutory Instrument 921 of 2005 provides the legal requirements regarding the wearing of Personal Flotation Devices. The Statutory Instrument contains the following requirements:

- The master or owner of a pleasure craft (other than a personal watercraft) shall ensure, that there are, at all times on board the craft, sufficient suitable personal flotation devices for each person on board.

- A person on a pleasure craft (other than a personal watercraft) of less than 7 metres length overall shall wear a suitable personal flotation device while on board an open craft or while on the deck of decked craft, other than when the craft is made fast to the shore or at anchor.

- The master or owner of a pleasure craft (other than a personal watercraft) shall take all reasonable steps to ensure that a person who has not attained the age of 16 years complies with paragraph above.

- The master or owner of a pleasure craft (other than a personal watercraft), shall take all reasonable steps to ensure that a person who has not attained the age of 16 years wears a suitable personal flotation device while on board an open craft or while on the deck of a decked craft other than when it is made fast to the shore or at anchor.

- The master or owner of a pleasure craft (other than a personal watercraft) shall take all reasonable steps to ensure that a person wears a suitable personal flotation device, at all times while – (a) being towed by the craft, (b) on board a vessel or object of any kind which is being towed by the craft.

Further information is available at: http://www.irishstatutebook.ie/eli/2005/si/921/made/en/print

Firing Range Danger Area – Lough Ree

The attention of mariners is drawn to the Irish Defence Forces Firing Range situated in the vicinity of buoys No’s 2 and 3, on Lough Ree on the Shannon Navigation. This range is used regularly for live firing exercises, throughout the year, all boats and vessels should stay clear of the area marked with yellow buoys showing a yellow "X" topmark and displaying the word "Danger".

Shannon Navigation, Portumna Swing Bridge Tolls

No attempt should be made by Masters’ of vessels to pay the bridge toll while making way through the bridge opening. Payment will only be taken by the Collector from Masters when they are secured alongside the jetties north and south of the bridge.

Navigating from Killaloe to Limerick on the Shannon Navigation

The navigation from Killaloe to Limerick involves passage through Ardnacrusha locks, the associated headrace and tailrace and the Abbey River into Limerick City. Careful passage planning is required to undertake this voyage. Considerations include: lock passage at Ardnacrusha, water flow in the navigation, airdraft under bridges on Abbey River in Limerick, state of tide in Limerick

Users are advised to contact the ESB Ardnacrusha hydroelectric power station (00353 (0)87 9970131) 48 hours in advance of commencing their journey to book passage through the locks at Ardnacrusha. It is NOT advised to undertake a voyage if more than one turbine is operating (20MW), due to the increased velocity of flow in the navigation channel, which can be dangerous. To ascertain automatically in real time how many turbines are running, users can phone +353 (0)87 6477229.

For safety reasons the ESB has advised that only powered craft with a capacity in excess of 5 knots are allowed to enter Ardnacrusha Headrace and Tailrace Canals.

Passage through Sarsfield Lock should be booked on +353-87-7972998, on the day prior to travel and it should be noted also that transit is not possible two hours either side of low water.

A Hydrographic survey in 2020 of the navigation channel revealed that the approach from Shannon Bridge to Sarsfield Lock and the Dock area has silted up. Masters of vessels and water users are advised to navigate to the Lock from Shannon bridge on a rising tide one or two hours before High Tide.

Lower Bann Navigation

The attention of all users is drawn to the “Users Code for the Lower Bann”, in particular to that section covering “Flow in the River” outlining the dangers for users both on the banks and in the navigation, associated with high flow rates when the river is in spate. Canoeists should consult and carry a copy of the “Lower Bann Canoe Trail” guide issued by the Canoe Association of Northern Ireland. Users should also contact the DfI Rivers Coleraine, who is responsible for regulating the flow rates on the river, for advisory information on the flow rates to be expected on any given day.

DfI Rivers Coleraine. Tel: 0044 28 7034 2357 Email: [email protected]

Lower Bann Navigation – Newferry – No wake zone

A No Wake Zone exists on the Lower Bann Navigation at Newferry. Masters of vessels are requested to proceed at a slow speed and create no wake while passing the jetties and slipways at Newferry.

Overhead Power Lines (OHPL) and Air draft

All Masters must be aware of the dangers associated with overhead power lines, in particular sailing vessels and workboats with cranes or large air drafts. Voyage planning is a necessity in order to identify the location of overhead lines crossing the navigation.

Overhead power line heights on the River Shannon are maintained at 12.6metres (40 feet) from Normal Summer level for that section of navigation, masters of vessels with a large air draft should proceed with caution and make additional allowances when water levels are high.

If a vessel or its equipment comes into contact with an OHPL the operator should NOT attempt to move the vessel or equipment. The conductor may still be alive or re-energise automatically. Maintain a safe distance and prevent third parties from approaching due to risk of arcing. Contact the emergency services for assistance.

Anglers are also reminded that a minimum ground distance of 30 metres should be maintained from overhead power lines when using a rod and line.

Submarine Cables and Pipes

Masters of vessels are reminded not to anchor their vessels in the vicinity of submarine cables or pipes in case they foul their anchor or damage the cables or pipes. Look to the river banks for signage indicating their presence.

Water Levels - Precautions

Low Water Levels:

When water levels fall below normal summer levels masters should be aware of:

Navigation

To reduce the risk of grounding masters should navigate on or near the centreline of the channel, avoid short cutting in dog-legged channels and navigating too close to navigation markers.

Proceeding at a slow speed will also reduce “squat” effect i.e. where the vessel tends to sit lower in the water as a consequence of higher speed.

Slipways

Reduced slipway length available under the water surface and the possibility of launching trailers dropping off the end of the concrete apron.

More slipway surface susceptible to weed growth requiring care while engaged in launching boats, from slipping and sliding on the slope. Note also that launching vehicles may not be able to get sufficient traction on the slipway once the craft is launched to get up the incline.

Bank Erosion

Very dry riverbanks are more susceptible to erosion from vessel wash.

Lock Share

Maximising on the number of vessels in a lock will ensure that the total volume of water moving downstream is decreased. Lock cycles should be used for vessels travelling each way.

High Water Levels:

When water levels rise above normal summer level masters should be aware of:

Navigation

Navigation marks will have reduced height above the water level or may disappear underwater altogether making the navigable channel difficult to discern.

In narrow sections of the navigations water levels will tend to rise more quickly than in main streams and air draft at bridges will likewise be reduced.

There will also be increased flow rates particularly in the vicinity of navigation infrastructure such as bridges, weirs, locks etc where extra care in manoeuvring vessels will be required.

Harbours and Jetties

Due care is required in harbours and at slipways when levels are at or near the same level as the harbour walkways' as the edge will be difficult to discern especially in reduced light conditions. It is advised that Personal Flotation Devices be worn if tending to craft in a harbour in these conditions.

Slipways

Slipways should only be used for the purpose of launching and recovering of water craft or other objects from the water. Before using a slipway it should be examined to ensure that the surface has sufficient traction/grip for the intended purpose such as launching a craft from a trailer using a vehicle, that there is sufficient depth of water on the slipway to float the craft off the trailer before the concrete apron ends and that the wheels of the trailer do not drop off the edge of the slipway. That life-saving appliances are available in the vicinity, that the vehicle is roadworthy and capable of coping with the weight of the trailer and boat on the incline. It is recommended that slipway operations are conducted by two persons.

Caution to be Used in Reliance upon Aids to Navigation

The aids to navigation depicted on the navigation guides comprise a system of fixed and floating aids to navigation. Prudent mariners will not rely solely on any single aid to navigation, particularly a floating aid to navigation. With respect to buoys, the buoy symbol is used to indicate the approximate position of the buoy body and the ground tackle which secures it to the lake or river bed. The approximate position is used because of the practical limitations in positioning and maintaining buoys in precise geographical locations. These limitations include, but are not limited to, prevailing atmospheric and lake/river conditions, the slope of and the material making up the lake/river bed, the fact that the buoys are moored to varying lengths of chain, and the fact that the buoy body and/or ground tackle positions are not under continuous surveillance. Due to the forces of nature, the position of the buoy body can be expected to shift inside and outside the charted symbol.

Buoys and perches are also moved out of position or pulled over by those mariners who use them to moor up to instead of anchoring. To this end, mariners should always monitor their passage by relating buoy/perch positions with the published navigation guide. Furthermore, a vessel attempting to pass close by always risks collision with a yawing buoy or with the obstruction that the buoy or beacon/perch marks.

Masters of Vessels are requested to use the most up to date Navigation guides when navigating on the Inland Waterways.

Information taken from Special Marine Notice No 1 of 2023