Shannon Estuary

Shannon Estuary
Shannon Estuary (Blue)
Map
Native nameInbhear na Sionainne (Irish)
Location
CountryIreland
CountiesClare, Limerick, Kerry
Physical characteristics
MouthLoop Head / Kerry Head
Length102.1 kilometres (63.4 mi)
Kilrush as seen across the estuary from County Kerry

The Shannon Estuary in Ireland (Irish: Inbhear na Sionainne)[1] is a large estuary where the River Shannon flows into the Atlantic Ocean. The estuary has Limerick City at its head and its seaward limits are marked by Loop Head to the north and Kerry Head to the south. The estuary defines the main boundary between County Kerry/County Limerick to the south and County Clare to the north.

The length of the Shannon Estuary is 102.1 km (63.4 mi). The Lower River Shannon Special Area of Conservation (SAC) incorporates the estuary and is 120 km (75 mi) in length, running from Killaloe to Loop Head.[2][3] The Shannon has a high tidal range, up to around 5.44 m (17.8 ft) at Limerick docks, such that the estuary has been considered for tidal power schemes, despite occasionally experiencing a tidal bore.[4]

In the second half of the 19th century about 65 km² of the estuary's lowlands have been embanked and reclaimed, largely for agricultural purposes.[5]

  1. ^ "Placenames Database of Ireland - Shannon Estuary". logainm.ie. Retrieved 20 June 2013.
  2. ^ "Lower River Shannon SAC (site code 2165) Conservation objectives supporting document-coastal habitats" (PDF). National Parks and Wildlife Service. 1 May 2012. Retrieved 6 December 2021.
  3. ^ "Lower River Shannon SAC (IE0002165)". Natura 2000. European Environment Agency. 6 June 2021. Retrieved 6 December 2021.
  4. ^ "Tidal & Current Energy Resources in Ireland" (PDF). Sustainable Energy Authority of Ireland (SEAI). Archived from the original (PDF) on 30 June 2017.
  5. ^ Kieran Hickey & Michael Healy: 'Historic land reclamation in the intertidal wetlands of the Shannon estuary, western Ireland Archived 26 September 2019 at the Wayback Machine', in: Journal of Coastal Research 36 (2002), p. 365-373.