Kilkerrin Quadrangular Tower and Battery

Reasons for building the Towers and Batteries.

Since Theobald Wolfe Tone and the Society of United Irishmen attempted to rally France behind the Irish cause in the 1790s and with the coming to power of Napoleon Ireland was seen as the likely landing place for an invasion force. The Mouth of the Shannon was one of the three invasion areas ( the others were Galway and Bantry Bay) included in the French Directory’s instructions to Vice- Admiral Villaret de Loveuse in October 1796, during the preparations of an expedition to Ireland.This led to the British Admiralty constructing the a system of Signal Stations (51) as observation posts, together with 50 Martello towers, each maintaining a garrison of troops, officers and heavy artillery.

In addition to these a total of 10 quadrangular towers protecting batteries were built in Ireland between 1809 and 1817 on the coast in places that were particularly vulnerable to invasion.  Seven were built to defend the River Shannon which was thought to be place the invasion was most likely to take place as it provided access to Limerick and the centre of Ireland. Six of these quadrangular towers were constructed along the shores of the Shannon Estuary below Limerick,  Tarbert and Carrig Island on the south shore and Kilcredaun, Doonaha, Scattery Island and Kilkerrin on the north shore. The other one was built on the Upper Shannon  to defend a  ford at Keelogue below Athlone. Two others were built on the shores of Lough Swilly in County Donegal and one on Bere Island in Bantry Bay in County Cork.

Description of the Quadrangular Towers and Batteries.

Quadrangular towers were always to be found closing the gorge of a detached battery and were there to protect the battery from a landward side attack as well as cover for the battery of 24 pounder guns.

The batteries housed the gunners and the ordinary troopers. It was well defended by deep dry moats and was bombproof.All the 10 batteries formed a D-shaped enclosure in plan with masonry on the the scarp and counterscarp of the dry moat . Entrance to the batteries was  across a drawbridge over the dry ditch or moat. The defensible guardhouses were entered from within the battery by a drawbridge slightly wider than the entrance doorway, over which the keystone bears the dates of construction.  The guardhouses had  basements or lower ground floors, level with the base of the dry moat in which it stands. The upper floor, level with the ground level of the battery, was approached by the drawbridge; above this floor level  is the gun platform carried on the barrel-vaulted ceiling of the first-floor apartments.Musket-loops were provided at the lower levels, allowing for close defence of the moat in the manner of a caponnière. Musket-loops at the upper floor levels, were fitted with shutters on the outer face of the wall, commanded the interior of the battery. Other loops are arranged on the opposite side at this level, facing the approach to the rear of the battery on the landward side. On the roof-level gun platform, protected by broad parapets some six feet in height, were two guns mounted on traversing platforms: howitzers or carronades for defence of the landward side of the battery and they fired exploding projectiles. The traversing platforms, one at each end of the roof, enabled the guns to be trained through an angle of about 270 degrees, covering the ground on each flank of the battery and to the rear.

The main armament of the battery consisted of six 24-pounder guns mounted on traversing platforms, each revolving on a front pivot behind the inner face of the parapet.The range of the 24 pounder guns was 2km.Most of the guns could be simultaneously pointed at the same point. They fired either hot cannon shots to set fire to a vessel or cold shots to sink a vessel. The cannon shots were held in a bomb proof section within the barracks.The Shannon Estuary batteries were well placed to cause maximum damage to an enemy fleet sailing up the river or attempting to land an invasion force, but they would not have prevented a large-scale French landing.

The batteries also provided protection for vessels anchored within range of their guns, otherwise vulnerable to attack by enemy ships of war or privateers. In 1804 the gunboat establishment in Ireland included five gun vessels in the Shannon Estuary armed with 18-pounder guns and 32-pounder and 18-pounder carronades.These small craft operating in the shallow waters of the estuary could not be pursued by deeper-draught vessels such as ships of the line or frigates.

Description of Kilkerrin Quadrangular Tower and Battery.

Kilkerrin Battery Fort, near the village of Labasheeda, is the best preserved of these Quadrangular towers in the River Shannon. Almost exactly opposite it on the Kerry side of the Shannon Estuary was the Tarbert Napoleonic Tower and Battery and if you look at the aerial picture you can see how well both these batteries would have defended the entrance of the River Shannon to Limerick. Unfortunately the Tarbert Battery was destroyed  in the early 1960s to accommodate  the building of Tarbert Oil Fired Power station.
Its stout walls have withstood the elements for over two centuries. Built between 1811 and 1814, it took 600 strong work force , stone masons , carpenters, builders and labourers one and a half years to build the fortress. It extended to 5 acres  The battery remained in use throughout much of the nineteenth century. Vegetables were grown by the soldiers in the surrounding field. The battery fell into disrepair after it was abandoned in the 1890s, and in 1973 the battery and the surrounding land was sold to a local farmer. Restoration work on the monument was undertaken in the 1980s by a local community group but the fort is in need of further attention.

With funding from the Heritage Council through the Creative IrelandProgramme 2019, the Labasheeda Projects Group/ St. Kieran’s Community Group commissioned an ecological survey of Kilkerrin Battery Fort and immediate environs with community involvement to increase understanding of the fort’s ecological significance. Ecologist, Tony Nagle worked with the group.At present the site is having a pathway constructed from the road to the battery and will make a great venue to visit and explore.

Kilkerrin Battery

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