Welwyn Railway Viaduct is a Grade II* listed building in the Welwyn Hatfield local planning authority area, England. First listed on 4 November 1980. A Victorian Viaduct.
Welwyn Railway Viaduct
- WRENN ID
- north-grate-alder
- Grade
- II*
- Local Planning Authority
- Welwyn Hatfield
- Country
- England
- Date first listed
- 4 November 1980
- Type
- Viaduct
- Period
- Victorian
- Source
- Historic England listing
Description
The Welwyn Railway Viaduct is a Grade II* listed railway viaduct built for the Great Northern Railway between 1848 and 1850 by engineers Sir William Cubitt and Joseph Cubitt, with Thomas Brassey as the contractor. This impressive structure features 40 arches made of red brick, with blue facing brick added in the 1930s. The piers have a rectangular plan that flares at the base and includes a projecting band at cornice level. The viaduct spans 519 yards across the Mimram valley, reaching a maximum height of 100 feet. Metal gantries were added around 1980 as part of the British Rail electrification programme. The construction cost was £69,397, and it was built using 13 million bricks, officially opening on 7 August 1850.
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- Flood risk assessment
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