 It is a single cast-iron segmental arch, considered to be quite large for the era, with a span of 61 metres and a 6.1-metre rise.The bridge arch has four ribs made up of nine H-section pieces bolted together; the ribs are cross-braced by tie bars with tensioning nuts and the spandrels are perforated by vertical slots.The weight of the ironwork has been estimated at about 500 tonnes.