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#oldestyacht – What may well be the world's oldest yacht, the 1789-built 26ft schooner Peggy in the Isle of Man has finally been lifted out of her historic berth under Bridge House in Castletown in the isle of Man, and has been safely transferred to a specially-modified workshop in Douglas for the painstaking work of conservation to begin.

As the project with the historic Asgard by John Kearon and his team in Collins Barracks in Dublin revealed, conservation is a highly skilled job requiring much patience, and almost endless resources. But the wonderful Peggy, built 226 years ago for Manx renaissance man and pioneering yachtsman George Quayle, is very special indeed, and the people of the Isle of Man are determined to ensure that she gets the preservation treatment she deserves.

Video of the yacht being moved here

Read WM Nixon's full blog on Peggy here

Published in Historic Boats

#oldestyacht – Serenely she sits, with all the heightened elegance of a still beautiful grand dame who, despite a hectic youth, has lived long and well to take her place in a position of respect, verging on reverence, within the community. But then anyone, whatever the life they may have led, would be deserving of some sort of special appreciation if they'd managed to reach the age of 224 still in reasonably good order, still looking much as they did more than two centuries ago. Yet that is the case with the 26ft schooner yacht Peggy. When you attend upon her in her home in Castletown in the Isle of Man, it's as if time has stood still since the 1790s.

We sailed over to the Isle of Man recently for the Peel Traditional Boat Weekend. As it had been expanded to include the final Irish Sea gathering for the Old Gaffers Association Golden Jubilee, it was felt that the least we could do, before the revels began, was to pay our respects to the ultimate old gaffer of them all, across at her home port on the south coast of the island. And if the Peggy of Castletown isn't the oldest yacht in the world in more or less intact order, then we'll be fascinated to hear of any vessel having a better claim. For by any standards, the Peggy is extraordinary.

Thus we'll leave an account of the fantastic party in Peel for another day. It will be ideal for the depths of winter when such memories of enjoyment deserve to be savoured at leisure. But the Peggy deserves to be highlighted right now. For the fact is that if you're into boats and those who sailed them and their history, then the Peggy blows your mind. The story of her origins, of her adventures in sailing, and of how she has survived for more than 200 years, would the stuff of legend if it didn't happen to be completely true.

The story of the Quayle family of Bridge House right on the harbour in the ancient Manx capital of Castletown is long and distinguished. In the 18th Century, John Quayle was a leading figure in the administration of the Isle of Man. But though his son George Quayle (1751-1835) was a member of the Manx parliament, the House of Keys, for 51 years, he was also something of a Renaissance man, his interests as a successful merchant and ship owner including the co-founding of the Isle of Man's first bank, while his inventive talents were such that he won a gold medal of the Society of Arts.

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George Quayle (1751-1835)

Despite the challenging nature of the waters around the Isle of Man, he was also an enthusiastic amateur sailor. So when the impressive Bridge House was being completed in 1789, he saw to it that its eastern end included a private dock accessed through an arch from Castletown Harbour, the dock in its turn giving access to a "boat cellar" in which he planned to have slipping facilities for a 26ft sailing boat he was having built nearby.

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Bridge House, Castletown, IOM. George Quayle's quarters were on the right hand side of photo, and the blocked-off entrance to the Peggy's dock is at lower right. Photo: W M Nixon

It may well be that, like the J/24 some 174 years later, the size of the new boat Peggy was dictated by the size of the garage available. Whatever, there's no doubt she's a very neat fit in the boat cellar. George Quayle then provided a complete maritime unit around his new boat's berth, as he created his own personal quarters around it independent of the family home, the main feature directly above the Peggy's cellar being a fine living room replicating the Great Cabin of a sailing ship.

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The first sight of the Peggy when you descend to the boat cellar is memorable, though it takes some time to grasp that this is a boat built 224 years ago. Photo: W M Nixon

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The stern is completely typical of its era Photo: W M Nixon

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The sections reveal a hull with real speed potential. Note the original spars stowed on wall on right. Photo: W M Nixon

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The interior reveals how the topsides were raised to increase sail carrying power. Photo: W M Nixon

With his new boat comfortably housed, and his own quarters cleverly created to shelter him from the demands of busy family life, most folk would have taken things easy for a while. But George Quayle was a bundle of energy. Although the boat was built in 1789, with the demands of completing the big new house, he doesn't seem to have started sailing the Peggy – named after his mother – until 1791. But once she was in action there was no stopping him, both in spirited sailing, and in re-configuring the boat to improve performance. So although the lower part of the hull of the Peggy is probably much as it as when she was built in 1789, as he increased the sail area of the already massive schooner rig he also raised the topsides in order to carry the extra cloth without having her fill. Even then, he still had extra canvas "boards" to keep the sea at bay.

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The construction details and hull lines were taken off in the 1930s after Peggy had been released following a century of entombment

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The sail plan is arguably a primitive version of that set by the schooner America 55 years later

The Peggy – complete with miniature yet very real armaments, as French privateers were active in the Irish Sea – was always considered a yacht, and Quayle was keen to race her and further improve performance. Thus he was soon experimenting with "sliding keels" to combat leeway, and the reputation of the Peggy became such that a challenge was set up to sail in a regatta against the only flotilla of other racing yachts within reach, across at Windermere in the English Lake District.

George Quayle was related to a leading figure in Windermere sailing, John Christian Curwen, who had a couple of sailing pleasure boats imported from the Baltic. Also on the lake was a supposedly hot sailing machine owned by one Captain Heywood. So in 1796, Peggy sailed across to Cumbria, and was carted up the half dozen or so miles from the inner reaches of Morecambe Bay to the lake, which is 128ft above sea level.

It was quite an effort, and as yacht racing organisation was only in its infancy in 1796, the results weren't totally clearcut, though it seems that the Peggy outsailed everything else by several country miles. Intriguingly, two other boats from this pioneering regatta have also survived, though not so well as Peggy. These were the two Baltic boats owned by John Christian Curwen. They were still intact until the 20th Century, but then were fire-damaged while in store. The sad remains of both were on display in a corner of the Windermere Steamboat Museum when I was there around twenty years ago, but largely ignored. Much more interesting was the discovery that George Quayle's relation John Christian Curwen was in turn related to Fletcher Christian of Bounty notoriety, who was of course a Cumberland man. Up among the lakes, they were happy to tell us that there's no way Fletcher Christian stayed on Pitcairn until the end of his days – he got home to the lakes some way or other, so it's said.

But meanwhile the Peggy only just made it home to the Isle of Man after her successful foray to Windermere. She'd a real pasting in the Irish Sea beating back to Castletown, but in typical style George Quayle turned this to best advantage, cheerfully reporting in a letter that the "sliding keels" so improved windward performance that they safely made it back to port.

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The sailplan on the model is one interpretation of the abundance of spars available in the boat cellar Photo: W M Nixon

Today, in the boat cellar at Bridge House, you can see the Peggy and all the features which made her such an able flyer. She still has the slots through which George Quayle lowered his primitive centreboards, and on racks on the wall are the original spars she carried when in her racing prime. This indeed was and is a formidable racing machine, and it's no exaggeration to assert that, in her miniature style, she was an early example of the type which reached its supreme development with the schooner America.

And she has survived through a fortuitous miracle of preservation. The exact timing and circumstances in which it all happened are not precisely clear, but we know that after George Quayle died in 1835, the Peggy was entombed in her boat cellar, with the seaward entrance walled up. In time, the little dock was filled in, and the archway through to Castletown harbour closed off. Yet with the pervading salty air, this provided an ideal environment for boat preservation. When it was all opened up again in the 1930s, there was the Peggy, still in remarkably good order, still the same little ship which had successfully completed such a gallant expedition to Windermere in 1796.

Today, George Quayle's quarters in Bridge House accommodate the Manx Nautical Museum, with the Peggy – now formally owned by the Manx nation - the prime exhibit. But with every passing year, she becomes ever more important, so much so that 2014 will see a comprehensive project to conserve her, and in time - let us hope - put her on more accessible display with her full racing rig in place.

With imaginative design, it could possibly be done by putting a clear roof over the little dock. I didn't pace it out when we were there a couple of weeks ago, but guessing from the photos, it should be just about feasible to accommodate her there with all sail set.

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The former dock, now filled in, where Peggy was berthed before hauling into the boat cellar - note her stern just visible in doorway, while the windows in the room above reflect sailing ship Great Cabin style. This former dock could be re-configured for use as a covered display area where the newly conserved Peggy could be put on show fully rigged. Photo: W M Nixon

And after 224 years, she surely deserves a proper display. But for now, there are the intriguing challenges of conservation. Most of the timber is in remarkably good order, but the fastenings need replacing, as apparently they are "mineralising". That sounds remarkably like good old-fashioned rust to you and me, but "mineralising" is a word to cherish. So it won't surprise you to learn that, after the earnest piety of our visit to the Peggy, my shipmates then threw themselves into the festivities and fabulous hospitality of the Peel Traditional Boat Weekend with such enthusiasm that we were undoubtedly in a mineralised condition as we slugged our way back home across the Irish Sea.

Published in W M Nixon

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