Tag Archives: Lough Ree

Up the Inny

The navigation of the River Inny from Ballynacarrow upriver to Lough Sheelin.

Mr Mullins’s steamer

Here is a little information about the steamer Cupid, which was owned or used by the contractor Bernard Mullins on the Shannon in the 1840s.

ESB water discharge info

Here is the ESB’s Notifications page, with info on the rate of discharge from its hydroelectric dams and weirs. Today (14 December 2015) Parteen Villa Weir is discharging 440 cumecs (cubic metres per second or, roughly, ton[ne]s per second down the original course of the Shannon. That’s 44 times the 10 cumec usually discharged and more than replaces the 400 cumec diverted through the headrace to the Ardnacrusha power station. The Shannon is therefore running at its pre-Ardnacrusha levels and the Falls of Doonass have regained their power.

Of course if Ardnacrusha didn’t exist, its 400 cumec would be coming down the original course of the Shannon on top of the 440 cumec already there, which would make for interesting levels of flooding.

That ESB page has a link to this infographic, which shows the sort of information I was trying to get across here. I usually start from Leitrim [village]; the ESB starts slightly further upstream at Lough Allen. Note that the Shannon’s few locks are concentrated upstream of Lough Ree: between them and Killaloe are only two locks, at Athlone and Meelick, so the river’s fall is very slight.

 

Theft on Lough Ree …

… in the National Archives of Ireland May 2015 document of the month.

Down to the sea in steps

On 28 January 1907 James Robinson Kilroe [near the bottom of the page] of H M Geological Survey read to the Royal Irish Academy a paper on “The River Shannon: its present course and geological history” [Proceedings of the Royal Irish Academy Vol XXVI Section B No 8 Hodges, Figgis & Co Ltd, Dublin; Williams & Norgate, London 1907]. I thought that Plate V was interesting.

Shannon Derg to sea

Plate V

Kilroe wrote:

It will be perceived that instead of the river being shallow over the unyielding Silurian slate-rock, set almost vertically, and striking across the river-course, it is deeper than over the limestone of Lough Derg, and much deeper than over the comparatively easily eroded Old Red Sandstone at Killaloe. The river-bed actually drops below the datum line above the town, while at the town it is 100 feet above datum.

Old Red Sandstone strata are here to be seen in the river-bank, and Silurian rocks in situ in its bed. A barrier is thus formed, partly of Silurian, and partly of Old Red Sandstone rocks, which without the artificial impounding weir would retain the waters of Lough Derg to a depth of some 104 feet opposite Derrycastle — two miles above Killaloe.

One might have expected to find a fairly level shallow bed from Killaloe northward, a sudden drop from slate-rock to the sandstone floor, and  a pronounced wide, well-formed valley in the limestone district southward to Limerick.

None of these elements exist; instead, we have the formidable barrier at Killaloe, naturally damming up a considerable depth of water in Lough Derg, and the river falling away southward by a series of rapids which correspond with drops in the canal, south of O’Briensbridge […], along an alternative course, possibly one used by a branch of the Shannon.

Here is an extract from the Plate V map, showing the steps of the (pre-Ardnacrusha) Limerick Navigation between Lough Derg and the sea.

Shannon Killaloe to Limerick

The steps of the canal (click to enlarge)

Upstream

Kilroe wrote of Lough Ree:

The waters of Lough Ree stood some 10 feet higher within recent times than they now do, as proved by evidence of solution, with under-cutting of limestone blocks, to be seen about five miles north-west of Athlone, close to the railway, in the townland of Cornaseer.

Under these conditions the lake must have been, perhaps, twice its width, and for a considerable period. Its ancient surface-level is clearly indicated by the caps of the mushroom-shaped blocks.

And of the Shannon between Lough Ree and Lough Derg:

The extreme flatness of the river between Athlone and Meelick is such that, consequent upon the completion of the Suck Drainage-works in 1892, it was found that the callows along the Shannon above the confluence of the Suck at Shannonbridge were much more liable to sudden and frequent floodings than they previously had been.

The more rapid discharge of the Suck waters into the Shannon, before ordinary extra water had time to pass away, had the effect of modifying the regimen of the main stream to an extent which resulted in an action at law [La Touche -v- The Suck Drainage Board].

I have found only one account of that case, in the Freeman’s Journal of 1 July 1893. The plaintiffs, Messrs Harrison and La Touche, owned land at Cappaleitrim, on the west bank of the Shannon above Shannonbridge. They said that the actions of the Suck Drainage Board had caused their lands to be flooded:

[…] that the defendants brought water from the Suck into the Shannon, containing a drainage of 40 miles, with such velocity and such volume that the Shannon was penned back, and that the back water caused the damage to the lands complained of.

[…] The jury disagreed and were discharged.

I don’t know whether the matter ever again came before a judge.

A little rain goes a long way

Here are some water level readings from Athlone Weir. I’ve taken them from the OPW’s very useful water levels site, where you can monitor levels from the comfort of your own armchair. [If only there were a gauge at Killaloe ….]

At Athlone, staff gauge zero is 35.360m above Poolbeg datum (from 18 Oct 2003). I chopped the bottoms off the first two graphs. The first one shows the level for 35 days to 30 September 2014; I presume that the level of Lough Ree was being reduced to enable it to hold some of the autumn’s rainfall.

Athlone Weir 20140930

Athlone Weir 35 days to 30 September 2014 (truncated)

Here’s the graph for the 35 days to 15 October 2014.

Athlone Weir 20141015

Athlone Weir 35 days to 15 October 2014 (truncated)

Then, in October, the level began to rise again. By 30 October, it was back to about 2.1 metres, roughly the starting point on the first of the graphs above.

Athlone Weir 20141030

Athlone Weir 35 days ro 30 October 2014

And since then it has continued to rise.

Athlone Weir 20141117

Athlone Weir 35 days to 17 November 2014

Met Éireann’s weather summary for October 2014 [PDF] has this chart:

Met Eireann weather Oct 2014

Met Éireann rainfall October 2014

It says:

Rainfall: wet conditions nearly everywhere

Monthly rainfall totals were above-average nearly everywhere with the exception of stations in coastal areas in the Northwest and West and in parts of the Midlands. Percentage of Long-Term Average (LTA) values ranged from 81% at Gurteen to 161% at Johnstown Castle, which recorded it wettest October since 2002.

Fermoy (Moore Park) reported 135% of its LTA with 153.6 mm and its wettest October in 10 years. The wettest days were mainly the 3rd, 5th and 28th, with the month’s highest daily rainfall reported on the 5th at Cork Airport with 38.6 mm, its wettest October day in five years. Mullingar reported its wettest October day in 12 years on the 28th with 26.4 mm. The number of wet days (days with 1 mm or more rainfall) ranged from 12 at Casement Aerodrome to 24 at Valentia Observatory and Claremorris, with Claremorris reporting its highest number of October wet days since 1973.

Use of the OPW charts is licensed under Directive 2003/98/EC [PDF] of the European Parliament and of the Council on the re-use of public sector information. Met Éireann allows use of “the web pages, and the information contained within them, for private and non-commercial purposes, for teaching, and for research […] is allowed subject to the condition that the source of the information is always credited in connection with its use”.

 

 

The monsoon is coming …

… perhaps. The water depth at Banagher has stayed at around 2.1 metres but that at Athlone has gone down to about 2.0 metres. Are TPTB lowering Lough Ree so that it can store the water from the autumnal rains? Information welcome.

And then there were …? [updated]

IBRA and IMF

In the original version of this post, I wrote:

I don’t know whether the Irish Boat Rental Association [IBRA] still exists. I can’t find a website for it, although there are references to it, and information about it, on other websites. The online Eircom phone book doesn’t have an entry for it, although the Yelp directory has an address in Bray. This site may be IBRA’s, although I can’t find anything saying so. If you know the true position, do please let me know and I’ll amend this.

In a Comment, Steve Conlon said:

IBRA is most certainly alive and well. http://www.boatholidaysireland.com is IBRA’s portal site and the IBRA logo is prominently displayed on the top right hand corner of the page in question. IBRA members were also members of the Irish Marine Federation which explains the listing on their website. With regards to membership, this stands at 7 despite the current difficulties of Shannon Castle Line. Barrow Line Cruisers have recently joined as a full member of IBRA. The IBRA website and group brochure are currently being up dated and a new industry led study into the market for hire boats is being undertaken. IBRA is a member of ITIC, the Irish Tourist Industry Confederation. I hope that this clarifies.

And Sven Neubert said:

IBRA is still “alive and kickin’ ” and we do have regular meetings (next one in June). The webpage is indeed http://www.boatholidaysireland.com and the IBRA-logo can be clearly seen on it, in the top left corner.

But everything else you are saying on this subject is correct and the hire boat industry has suffered big time over the last number of years.

From my point of view this has been widely ignored by the powers to be. The industry may be too small, but some important people seem to forget, that we bring in many tourist every year, and a good share of them spend another while in the country. But that fact doesn’t appear in the statistics…

It is very sad to see the company of a colleague go, with Shannon Castle Line being one of the oldest IBRA members.

You can see my responses in the Comments.

Shannon Castle Line and Waveline

CarrickCraft and Waveline have announced today that they will be merging after the 2014 season [the same press release is on the two websites]. The combined fleet of 125 boats is to be based at the CarrickCraft bases.

And, according to InsolvencyJournal.ie, receivers have been appointed to Skyline Entertainment Ltd and to Twinross Holdings Ltd, two of the companies that have registered the business name Shannon Castle Line. On 11 April 2014 that business name was registered by DDL Marine Limited, a company whose application to register with the Companies Registration Office was lodged on 7 March 2014. For both Skyline and Twinross,

Brian McEnery of BDO was appointed Receiver and Manager by Bank of Scotland Plc on 30th April 2014.

[Update] The 7 May 2014 issue of Iris Oifigiúil covers the matter.

The shrinking of the Shannon hire business, to which I have often drawn attention on this site, seems to be continuing.

 

Lowering Lough Ree

I reported in October and in November on the lowering of the level of Lough Ree, in advance of heavy rain, to see whether that would help to manage flooding on the Shannon Callows further downstream.

The interim data from the experiment is available on the OPW website here [seven-page PDF]. The conclusion is:

Conclusion
From the water level records, it is apparent that the closing of the gates at Athlone weir in anticipation of a rise in water levels on Lough Ree led to a temporary lowering of the Shannon water levels immediately downstream of Athlone. This possibly delayed inundation of the Shannon callows downstream of Athlone by a number of days. To determine whether the extent or depth of eventual inundation was in any way reduced by the experiment will require more detailed analysis by the CFRAM consultants. Data is available on request from Hydrometric Section if required.

It should be stressed that this is an interim report. This CFRAM background document [PDF] is still useful.

It is not clear to me why the state should spend any money improving the value of privately owned riverside land that is of marginal benefit to the economy.

 

Matters of minor importance

Some recent(ish) discussions amongst the People’s Representatives. I haven’t time to analyse them all. All links courtesy of the estimable KildareStreeet.com.

Brendan Smith [FF, Cavan-Monaghan] wants a sheugh in Clones; he got the usual answer. And he allowed Jimmy Deenihan [FG, Kerry North/West Limerick] to announce, on 19 December 2013, the death of the suggested extension of the Erne navigation to Lough Oughter [loud cheers]:

Brendan Smith: To ask the Minister for Arts, Heritage and the Gaeltacht if he has received the feasibility study on the proposed extension of the Erne navigation from Belturbet to Killeshandra and Killykeen; and if he will make a statement on the matter.

Jimmy Deenihan: I am informed by Waterways Ireland that it commissioned a Strategic Environment Assessment for the possible extension of the Erne Navigation from Belturbet to Killeshandra and Killykeen.

On reviewing the environmental information from this process, Waterways Ireland considers that the environmental designations of this lake complex make the feasibility of the proposed navigation extension highly unviable. For that reason, I am advised that Waterways Ireland does not propose to pursue this project any further at this time.

Well, that’s one minor victory for sanity. Here’s how a dredger got to Lough Oughter in 1857.

Maureen O’Sullivan is anxious to recreate the economy of the eighteenth and nineteenth centuries by using canals for carrying cargoes. Especially on the Shannon–Erne Waterway, where commercial carrying was so successful before. [What is it about the Irish left?] Thank goodness that the sainted Leo Varadkar gave not an inch: someone should make that man Taoiseach, President and Minister for Finance. And Supreme Ruler of The Universe and Space.

The web-footed inhabitants of the midlands, who have discovered that they live in a flat area with rivers, keep wittering on about Shannon flooding, failing to realise that it is a message from The Lord, telling them to either (a) move to higher ground, eg Dublin, or build arks. On 15 January 2014 Brian Hayes told Denis Naughten, inter alia, that info from the recent OPW/CFRAM monitoring of water levels on Lough Ree (which I think was when the levels were lowered) would be placed on the OPW website “in the coming days”; I haven’t been able to find it yet so I’ve emailed the OPW to ask about it. And on 21 January one James Bannon said that he intends to introduce a bill setting up a Shannon authority, which will have magical powers. Well, if it doesn’t have magical powers it won’t be able to stop the Shannon flooding, but perhaps it’s designed to allow the unemployed landowners of Ireland another forum in which to demand taxpayers’ money to prop up their uneconomic activities.

Finally, a senator called John Whelan wants a longer consultation period on the proposed amendments to the canals bye-laws. I suppose I’d better read them  myself.