The Tassagh Viaduct is a railway viaduct near Tassagh, County Armagh, Northern Ireland. Tassagh Beetling Mill sits almost immediately beneath it.
The viaduct was completed in 1910, bridging the Callan River Valley. [1] It was originally part of the Castleblayney, Keady and Armagh Railway, though services to Castleblayney were ended in 1924 and from 1932 onwards, [2] all trains across the Tassagh Viaduct were goods trains to and from Keady- It was at this time that the nearby Tassagh Halt closed. The line had been taken over by the Great Northern Railway (Ireland) shortly after opening.[ citation needed]
Final closure of the line and viaduct came in 1957. In December 1976, Tassagh Viaduct became a Grade B listed building. [3]
The viaduct is 11 arches long, and at its greatest height, 24 metres. It is 174 metres in length, and built of concrete (piers) and brick (arches and vaulting). [4]
54°17′11″N 6°40′42″W / 54.2863°N 6.6783°W