Boyne Viaduct

The Boyne Viaduct a 30-metre-high 98 feet railway bridge, or viaduct, that crosses the River Boyne in Drogheda, sporting the principle Dublin–Belfast railway line. The viaduct turned into designed through the Irish civil engineer Sir John Benjamin Macneill the use of new mathematical strain evaluation advanced only some years earlier than with the aid of William Bindon Blood at Queens College, Galway. Construction started out at the bridge in 1853 and changed into finished in 1855. It was the 7th bridge of its kind in the world when constructed, and taken into consideration one of the wonders of the age.

Prior to its construction, railway passengers had to make their manner through the town of Drogheda from the stations on either facet of the River Boyne until the development of a temporary wooden bridge, which allowed trains to go the river from May 1853 till the of completion of the viaduct. During World War II, the viaduct became identified via the British as being of superb strategic significance as a part of the British plans for a counter-attack following a German invasion of Ireland.