Road links and infrastructure Drogheda is located close to the M1 (E1 Euro Route 1) (main Dublin – Belfast motorway). The Mary McAleese Boyne Valley Bridge carries traffic from the M1, across the River Boyne, west of the town. It was opened on 9 June 2003 and is the longest cable-stayed bridge in Ireland. The town's postcode, or eircode, is A92.
Road links and infrastructure Drogheda is located close to the M1 (E1 Euro Route 1) (main Dublin – Belfast motorway). The Mary McAleese Boyne Valley Bridge carries traffic from the M1, across the River Boyne, west of the town. It was opened on 9 June 2003 and is the longest cable-stayed bridge in Ireland. The town's postcode, or eircode is A92.