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Wharncliffe Viaduct
Hanwell, London, UK
Wharncliffe Viaduct
associated engineer
Isambard Kingdom Brunel
date  February 1836 - 1837
UK era  Georgian  |  category  Railway Viaduct  |  reference  TQ148804
ICE reference number  HEW 591
photo  PHEW
Brunel's first major structural design and the first contract to be let on his Great Western Railway. The viaduct carries trains across the Brent valley at an elevation of 65ft.
Constructed of brick, the 900ft long bridge has 8 arches, each spanning 70ft and rising 17ft 6ins. The supporting piers are hollow and tapered, rising to projecting stone cornices that held up the arch centring during construction.
Originally, the piers were 30ft wide at ground level and 33ft at deck level. The deck was designed to accommodate two tracks of Brunel's broad gauge railway.
However, an Act of Parliament was passed in 1846 that made Stephenson's narrow gauge standard across the country and so the viaduct was widened in 1847 by the addition of an extra row of piers and arches on the north side. The new width is 55ft.
The viaduct is still used today for trains running from Paddington to Bristol. Lord Wharncliffe's coat of arms can been seen on the central pier on the south side. He was chairman of the Great Western Railway.
Original contractor: Grissell & Peto
reference sources   CEH Lond

Wharncliffe Viaduct