Treffry's Viaduct, built by the 19th Century Cornish engineer Joseph Treffry, is an engineering wonder. Built between 1839 and 1842 the viaduct is an impressive structure, 89 feet high and 650 feet long. The viaduct's ten arches, which are 90 feet high, have a span of 40 feet. The structure itself is 98 feet high and comprises 200,000 cubic feet of granite. It was constructed to carry horse drawn wagons and water across the Luxulyan valley. The viaduct was also part of a local transport system designed to carry china clay to the port of Par. Treffry become known as the 'King of Mid Cornwall' for his remarkable achievement. This hidden treasure was ahead of its time and was the first large granite viaduct to be built in Cornwall. | 
