Road Bridge over railway

This is a railway overbridge built between 1842 and 1843. It features sandstone ashlar abutments, piers, arch barrels, and parapets, with spandrels made of squared sandstone blocks arranged in horizontal courses.

The bridge has a skew arch design, crossing the railway at an angle. It consists of three segmental arches, with the voussoirs in the arch rings rising from skewback stones positioned above rectangular impost bands. These voussoirs are stepped to fit into the spandrels, which helps manage the stresses typical of a skew bridge. The voussoirs and the intrados of each arch are constructed using the helicoidal method, meaning the bedding joints between the stones are oriented at right angles to the bridge elevations rather than to the faces of the abutments.

The parapets, which are three ashlar courses high, are set apart from the spandrels by a horizontal string course at the level of the road deck. They are topped with flat coping stones that rise from a concave moulding to extend over the parapet walling. Each coping stone is secured to its adjacent stones with an iron cramp. Additionally, the first course of the parapet walling slightly protrudes on the inner face. The western parapet features short wing walls that curve outward at both ends of the bridge, while the eastern parapet remains straight.