It's certainly wide enough to carry two tracks...
However a little research confirms it was a single line:
http://www.buildingsofireland.ie/niah/search.jsp?type=record&county=CO®no=20908603
Hi George,
Accurascale.com is the new UK Outline brand of Irish Railway Models
As well as an exciting roadmap of Irish outline under the IRM brand, we plan to bring our attention to detail to the UK market, launching in February