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Displaying items by tag: Weir

#GALWAY BAY NEWS - Archaeologists in Galway Bay have unearthed an extensive tidal weir complex at Barna and a late medieval quay on Mutton Island, The Irish Times reports.

The weir, which is estimated to date from the early Christian period, consists of a granite barrier with channels cut through it, designed to control the flow of water in the adjacent lagoon.

Connemara archaeologist Michael Gibbons suggests that the weir implies a considerable fish stock migrating through the area into the Barna river.

The remains of a large Iron Age fort which overlooks the site may also have given its name to the townland of Knocknacarra, which is now a populous suburb of Galway.

Meanwhile, further east at Mutton Island a medieval quay which predates the current lighthouse quay has been found.

The Irish Times has more on the story HERE.

Published in Galway Harbour
#ANGLING - A plaque paying tribute to the late secretary of the Dublin Salmon Anglers' Association has been inveiled at Carton Estate in Co Kildare.
Patrick 'Pat' O'Molloy, who died in November last year, was commemmorated for his pioneering work over the last 35 years in the rehabilitation and restoration of wild salmon stock in the River Liffey, The Irish Times reports.
This involved introducing micro-tagged smolts into the Rye, a tributary of the Liffey upriver of the Carton Estate weir which was impassable from further downstream.
Sadly O'Molloy died before the return of salmon to the Liffey in a year that also saw their return to the Tolka afer more than a century.
Former fisheries CEO Alan McGurdy said at the ceremony: "As you all know, Pat was an angler, a board member, environmentalist, fish farmer and most of all, a friend.
"Today is some recognition to the great man for the tremendous work he did to look after our fish."

#ANGLING - A plaque paying tribute to the late secretary of the Dublin Salmon Anglers' Association has been inveiled at Carton Estate in Co Kildare.

Patrick 'Pat' O'Molloy, who died in November last year, was commemmorated for his pioneering work over the last 35 years in the rehabilitation and restoration of wild salmon stock in the River Liffey, The Irish Times reports.

This involved introducing micro-tagged smolts into the Rye, a tributary of the Liffey upriver of the Carton Estate weir which was impassable from further downstream.

Sadly O'Molloy died before the return of salmon to the Liffey in a year that also saw their return to the Tolka afer more than a century.

Former fisheries CEO Alan McGurdy said at the ceremony: "As you all know, Pat was an angler, a board member, environmentalist, fish farmer and most of all, a friend. 

"Today is some recognition to the great man for the tremendous work he did to look after our fish."

Published in Angling
Waterways Ireland, as part of a planned inland waterways programme of improvement works, has installed a floating Weir Boom across the weir at Clarendon Lock, Knockvicar on the Shannon Navigation.

Installing the 20m boom was initiated with assembly of the boom off-site in Rooskey. In early December, the drilling for the piles was facilitated by floating a piling rig to the site on pontoons. Piles are required to hold the Weir Boom in place. The boom was then floated to the site and secured in place. The works cost approximately €55,000.

Installation of the boom improves the amenity at Knockvicar in addition to lock gate replacement and upgraded lockhouse facilities which have been completed by Waterways Ireland in recent years.

The Weir Boom is a preventative measure installed by Waterways Ireland to protect boaters and their craft from being drawn over the weir. Space has been left to allow for the passage of canoeists. There will be no environmental impacts on fish or other wildlife from the installation or operation of the Weir Boom.

Published in Inland Waterways

About the 29er Skiff Dinghy

The 29er is a one-design double-handed, single trapeze skiff for youth sailors.

There is an active class in Ireland, just one of the 38-countries from across all continents now racing the high-performance skiff.

The 29er is one of the latest dinghy classes to arrive in Ireland and has a 50/50 split between boys and girls.

The class like to describe the boat as "The most popular skiff for sailors who want to go fast!".

Derived from the Olympic class 49er class and designed by Julian Bethwaite the 29er was first produced in 1998.

Two sailors sail the 29er, one on trapeze.

The class is targeted at youth sailors aiming at sailing the larger 49er which is an Olympic class.


The 6.25-metre high rig features a fractional asymmetrical spinnaker; a self-tacking jib decreases the workload of the crew, making manoeuvres more efficient and freeing the crew to take the mainsheet upwind and on two-sail reaches.

The 15.00 m2 spinnaker rigging set-up challenges crews to be fit and coordinated, and manoeuvres in the boat require athleticism due to its lack of inherent stability and the high speed with which the fully battened mainsail and jib power up.

The 74kg weight hull is constructed of fibreglass-reinforced polyester in a foam sandwich layout.

The fully battened mainsail and jib are made from a transparent Mylar laminate with orange or red Dacron trimming, while the spinnaker is manufactured from ripstop Nylon.

The mast is in three parts - an aluminium bottom and middle section, with a polyester-fibreglass composite tip to increase mast bend and decrease both overall weights, and the capsizing moment a heavy mast tip can generate. Foils are aluminium or fibreglass.

About the ILCA/Laser Dinghy

The ILCA, formerly known as the Laser, is the most produced boat in the world, with 220,000 units built since 1971.

It's easy to see why the single-handed dinghy has won the title of the most widely distributed boat of all time.

The Laser is a one-design dinghy, the hulls being identical but three rigs that can be used according to the size and weight of the sailor.

The class is international, with sailors from 120 countries. The boat has also been an Olympic class since 1996, being both the men's and women's singlehanded dinghy.

Three rigs are recognised by the International Laser Class Association (ILCA):

  • ILCA 4: sail of 4.70m2
  • ILCA 6: sail of 5.76 m2
  • ILCA 7: sail of 7.06 m2

29er skiff technical specs

  • Hull weight 74kg (163lb)
  • LOA 4.45m (14.4ft)
  • Beam 1.77m (5ft 7in)
  • Crew 2 (single trapeze) 
  • Spinnaker area 15.00 m2 (181.2sq.ft)
  • Upwind sail area 12.5 m2 (142.0 sq.ft)
  • Mast length 6.25m (20.5ft)

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