Tag Archives: flow

What’s a cumec, Daddy?

I don’t know, but here’s a picture of 415 of them flowing through Castleconnell. [Update 13 December: that may be only 405 cumec.]

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415 cumecs on 12 December 2015

Actually, a cumec is one cubic metre of water per second, which is roughly one ton per second, which is a lot of water. And 415 cumec is the amount that, according to the blatts, the ESB is currently letting down the original course of the Shannon from Parteen Villa Weir; the minimum flow in that channel, as seen in summer, is 10 cumec.

Castleconnell 12 December 2015

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Younger trees getting their feet wet

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Who’d have guessed?

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Below the bridge

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Above the bridge

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Stormont

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Pump

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Sandbags

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Sandbag Central

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Sandbags filled here for distribution

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Army engineers

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More equipment arriving

Clonlara 11 December 2015

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Ardnacrusha headrace, said to take 400 cumec

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Errina bridge on the Plassey-Errina Canal

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The stop planks seem to be quite effective …

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… as there is little water getting down the canal to Clonlara bridge

Park Canal 9 December 2015

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Depth gauge at Park Lock

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Lock chamber

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Full canal upstream

 

Hamilton Lock

Victoria (Meelick) and Hamilton Locks (OSI ~1900)

Victoria (Meelick) and Hamilton Locks (OSI ~1900)

Lord Dunkellin: Do you know the Victoria lock at Meelick?

Sir Richard Griffith: I do.

Victoria Lock, Meelick

Victoria Lock, Meelick

Dunkellin: Do you know what is called the Old Cut, the old canal?

Griffith: Yes.

Dunkellin: The Victoria lock is a new work, is it not?

Griffith: It is.

Dunkellin: Should you be surprised to hear that vessels do not use that frequently, but go by the old cut?

Griffith: In times of very high flood I am aware that the canal boats find it advisable and beneficial to go by the Hamilton lock, on the old cut, in preference to the other.

Dunkellin: Prima facie, one would have thought that a new work like the Victoria lock would have the effect of regulating the state of things?

Griffith: It arises from the Counsellers’ Ford, as it is called, above Meelick; it has not been sufficiently excavated, and there is a strong current, and the boats are not able to get up to it in times of high flood.

Dunkellin: Then the boats made use of the old canal instead of the new lock?

Griffith: Under those peculiar circumstances they did.

Evidence of Sir Richard Griffith to the Select Committee on the Shannon River 12 June 1865

My OSI logo and permit number for website

Backtracking the Barrow trackway

Some time ago I put up a page about the Barrow trackway [towing-path]. For some reason, the page disappeared shortly afterwards. I have now recreated it; unless or until it disappears again, it is here.

Ballygalane on the Blackwater

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The Lismore Canal lock

The only lock on the Lismore Canal is at Ballygalane, on the River Blackwater. Here is a new page about the canal, with photos of some of its important features.

Waterside Belturbet

Here is a small amount of information about Belturbet and some of its industrial heritage. The photos were taken on a brief visit in July 2011.

Crossing the Barrow

The trackway [towing-path] on the River Barrow changes from the east {left) bank to the west at Leighlinbridge and back again at Graiguecullen/Carlow.

It seems to me that there may have been some difficulties in getting horse-drawn boats from one side of the river to the other and I have found no evidence on how it was done, so here is some speculation instead.

The Deel navigation

The Deel linked the Co Limerick town of Askeaton to the south side of the Shannon Estuary. Here is a page about the navigation and some of its quays. Note that it is a long page with many maps and photos, although they’re all reduced in size to minimise the strain on tinterweb.

Plassey in 1851

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Free the Black Bridge

Here is a page about a cot race at Plassey in 1851.

 

 

Two Limerick footbridges

The Black Bridge at Plassey has long had a place in the hearts of Limerick people. It was damaged in the floods of 2009 and has been closed to the public ever since. Limerick Council says it can’t afford to repair it. Limerick Council is, as far as I can see, in breach of the terms of its lease of the bridge from the Department of Finance; the Department of Finance could, but has chosen not to, insist that the Council repair the bridge.

In the meantime, the Minister for Finance, for reasons best known to himself, wants a new, er, iconic footbridge in Limerick city and is prepared to spend €6 million of taxpayers’ money, via Fáilte Ireland, on a structure that can scarcely avoid blocking some of the finest views in the city.

Now, the Limerick Leader tells us, the ghastly edifice is to cost almost €18 million: €6 million from the Minister for Finance (who represents Limerick), €4 million to be borrowed and €7.8 million from the leprechauns’ pot of gold under the thorn bush. Or somewhere. Even Fianna Fáil councillors think this is insane, which is saying something.

This ridiculous proposal should be abandoned immediately and a much smaller sum should be spent instead on repairing the Black Bridge as part of a European Route of Industrial Heritage.

The Minister’s €6 million is a gift-horse that should not only have its teeth inspected: it should be taken out and shot and its carcass sent to the burger factory.

The Shannon in winter

Downriver from Shannon Harbour to Dromineer in December 2014. It began as a bright, cold morning.

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Leaving Shannon Harbour after icebreaking between the locks

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Flooding to the south-east

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But southward, look …

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The Brosna

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Heading for Banagher Bridge 1

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Keeping close to the pontoons

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Heading for Banagher Bridge 2

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Heading for Banagher Bridge 3

There is a YouTube video of the shooting of the bridge here. It seems to start automatically, including sound; I don’t know how to avoid that.

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Looking back at Banagher

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Colours

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Invernisk

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Shannon Grove

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Current

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Scarpering heron

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Colours

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Marker and gauge

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House

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Boats at Meelick

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Meelick weir

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East bank

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Protective boom

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Sluices

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Through Meelick Lock

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One bird

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Many birds

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Reeds

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Architecture

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Munster Harbour

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Delaying Eamon Egan

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Gateway to civilisation

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Connacht Harbour

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Lough Derg: weather has changed

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Journey’s end, Dromineer