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List Entry Summary

This building is listed under the Planning (Listed Buildings and Conservation Areas) Act 1990 as amended for its special architectural or historic interest.


List entry Number: 1348122



The building may lie within the boundary of more than one authority.

County: Hertfordshire

District: Welwyn Hatfield

District Type: District Authority

Parish: Welwyn

National Park: Not applicable to this List entry.

Grade: II*

Date first listed: 04-Nov-1980

Date of most recent amendment: Not applicable to this List entry.

Legacy System Information

The contents of this record have been generated from a legacy data system.

Legacy System: LBS

UID: 158231

Asset Groupings

This list entry does not comprise part of an Asset Grouping. Asset Groupings are not part of the official record but are added later for information.

List entry Description

Summary of Building

Legacy Record - This information may be included in the List Entry Details.

Reasons for Designation

Legacy Record - This information may be included in the List Entry Details.


Legacy Record - This information may be included in the List Entry Details.



II* Railway viaduct for the Great Northern Railway. 1848-50 by Sir William Cubitt and Joseph Cubitt, Thomas Brassey contractor. 40 arches in red brick with blue facing brick added in the 1930s. The rectangular plan piers are flared to the base and have a projecting band at cornice level. The Viaduct stretches 519 yards across the Mimram valley with a maximum height 100 feet. Metal gantries added around 1980 as part of the British Rail electrification programme. HISTORY: The Viaduct was built at a cost of o69,397, and constructed of 13 million bricks. It was opened 7 August 1850. SOURCES: C. Biddle and O.S. Nock, The Railway Heritage of Britain.

An impressively monumental and elegant railway viaduct of 40 arches for the Great Northern Railway by eminent engineers Sir William and Joseph Cubitt.

Listing NGR: TL2452514852

Selected Sources

Books and journals
Biddle, , Nock, , The Railway Heritage of Britain, (1983)

National Grid Reference: TL 24525 14852


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End of official listing