() A Class E viaduct high, long on 10 dwarf piers; replaced by a new stone viaduct on 7 October 1877. This was listed Grade II in 1985. Viaducts from Lostwithiel to Truro Lostwithiel Milepost 277.75, west of across the River Fowey. () An wrought iron bridge with six timber approach spans. The date of replacement is uncertain. Milltown Milepost 278.5, west of Lostwithiel. () A Class A viaduct high, long on 7 piers; replaced by a new stone viaduct in 1894. Par Milepost 282.25, west of . () A five-arch stone viaduct to carry the line over a tramway, river and canal near Par Harbour. This was the only stone built viaduct on the line when it opened in 1859. It is known locally as the 'Five Arches'. St Austell Milepost 286.75, across the Trenance valley west of .() A Class A viaduct high and long on 10 piers. It was built on a curve and crosses the road to Bodmin at an angle. The pier next to this road had to be built to an unusual triangular plan to fit this unusual configuration. The viaduct was replaced by a new stone viaduct in 1899. This sprung from the same point at the St Austell end before taking up an adjacent alignment. This meant that the northern half of the new viaduct was built first, the timber structure dismantled, and then the southern side completed. The viaduct is referred to as Trenance Viaduct on Ordnance Survey maps. Gover Milepost 287.5, west of St Austell. () A Class A viaduct high and long on 10 piers. It was replaced by a new stone viaduct in 1898. This viaduct and the remaining piers of the original structure were listed Grade II in 1988. Coombe St Stephens Milepost 291.25, east of . () A Class A viaduct high and long on 11 piers. It was replaced by a new stone viaduct on 11 July 1886. The surviving piers from Brunel's viaduct were listed Grade II in 1988. Fal Milepost 291.75, east of Grampound Road. () A Class A viaduct high and long on 8 piers. It was replaced by a new stone viaduct on 24 August 1884. Probus Milepost 295.25, west of (). Probus and Ladock Halt was opened a quarter of a mile east of the viaduct site on 1 February 1908. A Class E viaduct high and long on 11