It is 169 feet (52 m) high, and carries the railway over the River Ayr near Mauchline and Catrine in East Ayrshire, Scotland.

[1] Designed by John Miller, the viaduct was built in the 1840s for the Glasgow, Paisley, Kilmarnock and Ayr Railway Company.

Work commenced on its construction during March 1846; it was built under contract by Ross & Mitchell and William McCandlish was the resident engineer.

It is built of local red sandstone and stronger stone sourced from Dundee was used for the arch rings.

The Ballochmyle Viaduct was designed by John Miller for the Glasgow, Paisley, Kilmarnock and Ayr Railway during the mid 1840s.

[1] The viaduct carries double track railway across the river between Mauchline and Catrine;[8] and tens of thousands of trains have crossed over it during its lifetime.

[10] During the early 2010s Network Rail upgraded the viaduct to strengthen it for heavy freight trains, particularly coal traffic.