A twenty-three arch masonry viaduct which extends eastwards from Kilmarnock Railway Station in East Ayrshire, the Kilmarnock Railway Viaduct represents one of the most prominent features of the town, crossing two main roads together with the Kilmarnock Water. The viaduct was designed by John Miller (1805-83), engineer to the Glasgow, Paisley, Kilmarnock and Ayr Railway, and built between 1843 and 1850 to allow that line to continue south to Carlisle.
In 2008, an LED lighting scheme was installed on the Category-B listed viaduct and turned on by council leader Douglas Reid illuminating the structure with a blue glow at night. The scheme was jointly funded by East Ayrshire Council and the Railway Heritage Trust in partnership with Network Rail.