Post Office – Newry, Mayobridge – Opening Hours & Branch Details Post Office sits at 2 Ballyvalley Road, about a 4.49 mile driving distance east from the centre of Newry. The branch is handy for the people of Carrickcrossan, Bavan, Edenmore, Ballyvally, Carnany, Mayobridge and Mayo. If you’d like to swing by today (Friday), its branch hours are from 9:00 am to 6:00 pm. On this page you’ll find all the relevant information about Post Office Newry, Mayobridge, including the opening hours, local navigation or telephone info.