March 3rd, 1940
The drowned valley
At ten in the morning on the third of March, 1940, the gates closed at Poulaphouca and the Liffey started backing up behind the dam. By September the water was a third of the way up. Seventy-six houses had already been demolished. Bridges at Humphreystown, Baltyboys and Burgage were blown. A 12th-century stone cross was lifted out and resited in Blessington graveyard. Around three hundred people — seventy farming families — were moved on compulsory purchase, most to land they didn't know. In a long dry summer the lake still drops far enough that field walls and a bit of a road show up on the eastern shore. People still walk out and find them.
Normans on the edge of the Pale
The Eustaces
Thomas FitzOliver FitzEustace was made constable of the castle here in 1373 on £10 a year. His grandson did the job, and his great-grandson, and the family name stuck to the village. Ballymore was on the very edge of the Pale, the English-controlled bit around Dublin, which meant it got raided regularly by the O'Tooles and O'Byrnes coming down out of Wicklow. An earthen rampart was thrown up around the village in the 1400s. Parliament was held here in 1389. The castle itself fell to Cromwell in the 1650s, and there's nothing left of it above ground today.
The waterworks
Dublin drinks here
Most of the water that comes out of a Dublin tap has been through the Poulaphouca treatment works just outside the village. It was built in tandem with the dam in the 1940s and has been quietly upgraded ever since. The reservoir holds 166 billion litres. The hydroelectric station beside it produces about 30 megawatts when it's running flat out. Neither of these is a tourist attraction. They are why the village is on the map at all.
The Curragh is up the road
Racing country
The Curragh — Ireland's flat-racing capital — is fifteen minutes north. Goffs sales ring is twenty. The result is that the fields around Ballymore Eustace are stud farms, the lanes carry horseboxes, and Bobby Coonan, the six-time National Hunt champion jockey, was born here in 1940 and rode his first winner before he could legally drink in any of the pubs he later did.