Booterstown Marsh
Booterstown Marsh Nature Reserve
ADDRESS / GRID REFERENCE
- Rock Road, Booterstown, Co. Dublin. Located between the Rock Road and the DART railway line at Booterstown station.
- N 53' 18'' W 06' 12''
ENVIRONMENTAL AND HERITAGE SIGNIFICANCE
- The only remaining saltmarsh on the south shore of Dublin Bay - it provides an environmental awareness amenity within an urban setting. A brackish water marsh, approx. 4.3 ha, with both salt and fresh water intakes. It has a seasonal and annual fluctuation in its pattern of vegetation and this instability is characteristic of marshes of this type.
- The only Bird Sanctuary in South Dublin Bay - Dublin Bay is an internationally important feeding and roosting area for ducks, geese and waders, and probably holds the highest concentration of wintering waterfowl of an Irish estuary. As part of the Dublin Bay area, Booterstown Marsh is an essential refuelling and resting spot for migrating birds and provides three main habitats ranging from freshwater to saltwater( Moorhen, Reed Bunting, Sedge Warbler, Teal, Snipe, Lapwing, Oystercatcher, Redshank, Dunlin, and Brent Geese).
- Puccinellia fasiculata occurs in the marsh - it is one of only 68 plant species protected, along with its habitat, under the Wildlife Act (Flora Protection Order of 1987).
HISTORY / DESCRIPTION
Up to the early 19th century, the area currently occupied by Booterstown Marsh was part of Merrion Strand and extended as a fringe marsh from Dublin City to Blackrock. Overtime much of this was lost to reclamation and development. In 1834 the new Dublin to Kingston railway was built on a raised stone-faced embankment across this part of the bay, cutting off an area of the strand between Merrion Gates and Blackrock from the sea. On the first six-inch Ordnance Survey map of this area in the 1830's, the resulting tidal lagoon (or intake) measured over 28.3 ha and was already subdivided into three parts. Much of the original lagoon was infilled in the 19th century, leaving only Booterstown Marsh at or near the high tide level.
For most of the period from the mid-19th and mid-20th century the marsh area was grazed or cultivated and cultivation ridges, which are still a prominent feature of the eastern side of the marsh. During both World Wars much of the marsh was drained and cultivated, restricting but not eliminating the influence of the inflowing streams and saline ditch. When the allotments fell into disuse, marsh vegetation gradually reclaimed the arable land. In the 1950's and 1960's, land was further infilled at both ends of the marsh, a car park was constructed at the south-western corner, while the Trimleston stream was culverted along the northern edge of the marsh, to discharge to the sea.
HOW ACQUIRED
Requested by An Taisce in 1950 to prevent development on wasteland.
MANAGEMENT ISSUES AND FUTURE PLAN
- Short and long term management is aimed at retaining the aerobic quality of the Marsh.
- Continue research.
- Produce a tourism development plan that supports the management objectives and enhances the amenity value, making alternative developments difficult to justify. This includes the development of an interpretative centre and a hide.
- Improve awareness through upgraded signage and literature.
- Purchase freehold.
- Retain strong links with other associated NGO's.
- Introduce a voluntary warden scheme, similar to National Trust.
- Establish an endowment fund.


