page_title: Cornwall Railway viaducts
section_title: Bolitho
hierarchical_section_title: Cornwall Railway viaducts / Viaducts from St Germans to Liskeard / Bolitho
caption_attribution_description: English: 43164 provides the power at the rear of a First Great Western service from Penzance to London Paddington. It is crossing Bolitho Viaduct as it heads east from Liskeard.
context_page_description: The Cornwall Railway company constructed a railway line between Plymouth and Truro, England, opening in 1859, and extended it to Falmouth in 1863. The topography of Cornwall is such that the route, which is generally east-west, cuts across numerous deep river valleys that generally run north-south. At the time of construction of the line, money was in short supply due to the collapse in confidence following the railway mania, and the company sought ways of reducing expenditure.
  On the advice of the Victorian railway engineer Isambard Kingdom Brunel, they constructed the river crossings in the form of wooden viaducts, 42 in total, consisting of timber deck spans supported by fans of timber bracing built on masonry piers. This unusual method of construction substantially reduced the first cost of construction compared to an all-masonry structure, but at the cost of more expensive maintenance.
  Replacement of the timber viaducts by all-masonry structures began in the 1870s but a few remained in service until the 1930s.
context_section_description: A Class A viaduct 113 feet (34 m) high and 546 feet (166 m) long on 8 piers. It was rebuilt as a stone viaduct in 1882.
caption: Bolitho Viaduct
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