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The MacDonald River bridge is a heritage-listed road bridge that carries St Albans Road (as Main Road) across the MacDonald River at St Albans, New South Wales, Australia. It was designed by Ernest de Burgh and built by John Ahearn and Son. It is also known as Norton Bridge. The property is owned by Transport for NSW. It was added to the New South Wales State Heritage Register on 20 June 2000.