timeline item
Here is the information we have
on the item you selected
More like this
sign up for our newsletter
© 2018 Engineering Timelines
engineering timelines
explore ... how   explore ... why   explore ... where   explore ... who  
home  •  NEWS  •  search  •  FAQs  •  references  •  about  •  sponsors + links
Burnley Viaduct
West of Burnley Central Station, Burnley, Lancashire, UK
associated engineer
Not known
date  1848
era  Victorian  |  category  Railway Viaduct  |  reference  SD836329
Burnley Viaduct, also known as Ashfield Road Viaduct or Bridge 69, carries the East Lancashire Railway over the shallow valley of the River Calder and the B6434 Royle Road. It lies between Burnley Barracks Station in the west and Burnley Central Station in the east. Ashfield Road runs along most of the southern side of it.
The East Lancashire Railway operated as a separate entity between July 1845 and August 1859. Burnley Viaduct is on the Accrington to Colne section of the railway, and although work was delayed by the partial collapse (and rebuilding) of the viaduct, it opened in December 1848.
The viaduct is built on an incline of 1 in 100 and has 15 semi-circular red brick arches each of 18.3m span with single voussoir rings of ashlar masonry. An original drawing showed only 13 arches, the additional two arches were added at the western end of the structure.
The spandrels and piers are of rusticated masonry. Each pier is topped by a projecting single course of ashlar masonry 0.53m deep, from which the arches spring. The piers are 9m long at their bases, measured along a horizontal mortar joint, and have a slight taper (1 in 48) on all four sides, reducing to 2.3m wide at their tops.
Internally the spandrels over the piers used to have five brick jack arches within them, forming chambers, and a central drainpipe that discharged near the base of the pier. The jack arches were removed in 1892-93.
Above a projecting cornice of ashlar masonry, the viaduct has solid masonry parapets 0.41m wide with projecting coping stones, except over Arches 9, 10and 11 (from the western end) where there are open railings. The deck is 7.9m wide between the parapets. Iron transverse tie rods have been used to strengthen certain arches Arch 6 has a single tie rod placed centrally, while Arch 7 has three tie rods. Arches 9, 10 and 11 each have three tie rods, fitted in 1908.
The viaduct used to span a local road (Arch 6), Calder Vale Road (Arch 9), the River Calder (Arch 10) and Royle Road (Arch 13), but the roads under Arches 6 and 9 no longer exist. Several of the arches are now occupied by commercial businesses.
Research: PD
"A Guide to the Industrial Archaeology of Lancashire
by Michael Nevell and David George, Association for Industrial Archaeology, Annual Conference, Preston, 2007
"The Industrial Archaeology of Lancashire" by Owen Ashmore
David & Charles, Newton Abbot, 1969
"The Lancashire & Yorkshire Railway" by Alan Earnshaw
Book Law Publications, 1977

Burnley Viaduct