page_title: Railways in Plymouth
section_title: Bridges and viaducts
hierarchical_section_title: Railways in Plymouth / Engineering / Bridges and viaducts
caption_attribution_description: A Penzance to Plymouth train crosses Pennycomequick Viaduct on the Cornwall Loop Line approach to Plymouth (North Road) railway station. In the background are the remains of Stonehouse Pool Viaduct on the former route to Plymouth Millbay station, on top of which is now an artwork representing the Sea Wall section of the South Devon railway.
context_page_description: The network of railways in Plymouth, Devon, England, was developed by companies affiliated to two competing railways, the Great Western Railway and the London and South Western Railway. At their height two main lines and three branch lines served 28 stations in the Plymouth area, but today just six stations remain in use.
context_section_description: Millbay station was built in an elevated position with a short viaduct and bridge across Union Street immediately beyond the platform end. The arches of this viaduct were rented out to local traders for storage and were even used as a garage for the buses used on the GWR road motor services.
  The CR line passed over three of the many Cornwall Railway viaducts. These were originally built from timber but were all rebuilt in more durable materials between 1899 and 1908. The first was the 321 feet (98 m) long Stonehouse Pool viaduct which was rebuilt in brick with iron girders in 1908 and, since it no longer carries trains, its girders have been replaced an abstract artwork that is said to represent the railway as it passes along the Sea Wall. The next two structures were either side of Keyham station. Keyham viaduct (432 ft) was rebuilt in brick with girders in 1899 and later with steel girders in 1937. The longer Weston Mill viaduct (1,200 ft) crosses Camel's Head creek was replaced in 1903 with short brick viaducts either side of a four-span bowstring girder structure. The railway then crosses 100 feet (30 m) above the River Tamar on the 2,187½ feet-long Royal Albert Bridge.
  Pennycomequick Viaduct was brought into use on 18 May 1876 with the new Cornwall Loop line. This was built from limestone and joined the western end of Stonehouse Pool Viaduct.
caption: Pennycomequick Viaduct (right) and the remains of Stonehouse Pool Viaduct
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