Ferryden Viaduct, Montrose

The South Esk Viaduct in Montrose is a railway viaduct built in 1881, designed by W R Galbraith and constructed by Sir William Arrol. It features 16 spans, with a total length of 440 meters, made of latticed wrought iron girders that have a slight convex curve in each span. The structure is supported by 15 pairs of cross-braced cylindrical piers made from riveted wrought iron plates. At the southwest end, there is a brick abutment with rectangular piers that clasp the iron structure, topped with sandstone copes and a band course. This end also has a short sloping wing wall to the east and a longer canted sloping wing wall to the west. At the northeast end, another brick abutment with rectangular piers clasps the iron structure, featuring sandstone copes and a moulded band course.

Additionally, there is a railway viaduct built in 1879 by Sir Thomas Bouch, which consists of 17 spans arranged in a slightly curved formation. It has semicircular arches resting on slightly battered rectangular piers, with the A92 road running beneath the southernmost arch. This section is constructed of red brick, with some areas replaced by newer, matching brick, and predominantly uses English bond. Above the arches, there is a roughly tooled stone band course and a low parapet with plain metal railings. On the west side of the southernmost arch, a small raised shield bearing initials, possibly 'RIN', is dated 1879. Various reinforcement plates have been applied regularly, and railway track reinforcement is present on the soffit of the northernmost arch. The eastern side of the southern end features a sloping stone coped wing wall.