Severn Bridge and Aust Viaduct First Severn Crossing

SEVERN BRIDGE AND AUST VIADUCT FIRST SEVERN CROSSING, M48 MOTORWAY

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Overview

Heritage Category:
Listed Building
Grade:
I
List Entry Number:
1119760
Date first listed:
29-May-1998
List Entry Name:
Severn Bridge and Aust Viaduct First Severn Crossing
Statutory Address:
SEVERN BRIDGE AND AUST VIADUCT FIRST SEVERN CROSSING, M48 MOTORWAY
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Location

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Date:
1999-08-20
Reference:
IOE01/01467/30
Rights:
© Mr Robert England. Source: Historic England Archive

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Official list entry

Heritage Category:
Listed Building
Grade:
I
List Entry Number:
1119760
Date first listed:
29-May-1998
List Entry Name:
Severn Bridge and Aust Viaduct First Severn Crossing
Statutory Address 1:
SEVERN BRIDGE AND AUST VIADUCT FIRST SEVERN CROSSING, M48 MOTORWAY

The scope of legal protection for listed buildings

This List entry helps identify the building designated at this address for its special architectural or historic interest.

Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.

For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.

Understanding list entries

Corrections and minor amendments

The scope of legal protection for listed buildings

This List entry helps identify the building designated at this address for its special architectural or historic interest.

Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.

For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.

Understanding list entries

Corrections and minor amendments

Location

Statutory Address:
SEVERN BRIDGE AND AUST VIADUCT FIRST SEVERN CROSSING, M48 MOTORWAY

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

District:
South Gloucestershire (Unitary Authority)
Parish:
Aust
National Grid Reference:
ST5590090230

Details

AUST

ST58NE

297-0/7/10005

M48 MOTORWAY

Severn Bridge and Aust Viaduct First Severn Crossing

I

Includes: Severn Bridge and Aust Viaduct, First Severn Crossing, M48 Motorway Beachley, Tidenham.

Motorway bridge over River Severn and its eastern approach viaduct. 1961-1966. Freeman Fox and Partners in association with Mott, Hay and Anderson, consulting architect Sir Percy Thomas. Bridge has steel cables, deck and towers, concrete substructure and foundation (cable anchorages and piers for towers); viaduct structure steel with concrete deck slab. Suspension bridge (spans 305m - 987.5m - 305m) with aerodynamically shaped deck and inclined hangers; first bridge in the world to be built with these features. Viaduct 156.5m long, has three spans consisting of two box girders acting compositely with concrete slab. Part of the First Severn Crossing for the M48 (formerly M4), consisting of Aust Viaduct, Severn Bridge and Wye Viaduct (qv). Strengthened and refurbished 1985-91 without seriously changing appearance. Bridge recently repainted white to reduce thermal stress (not original colour, but successful).

This is the first bridge in the world to use the revolutionary concept of the streamlined deck and inclined hangers, and was an early example of a fully welded steel deck. It was by far the longest span in England when it was built.

This entry was subject to a Minor Amendment on 5 September 2017.

The asset was previously listed twice also under the parish of Tidenham, Forest of Dean at List entry 1379827. This entry was removed from the List on 5 September 2017.

Legacy

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

Legacy System number:
469289
Legacy System:
LBS

Sources

Books and journals
Brown, D J, Bridges 1965 To 1993, (1993)
Henry, D, Jerome, J A, Modern British Bridges, (1965)
Flint, AR, Strengthening and Refurbishment of the Severn Crossing in Proceedings of the Institution of Civil Engineers - Structures and Buildings, Vol. 94, Issue 1, (1992), .
Roberts, G, Severn Bridge Design and Contract Arrangements in Proceedings of the Institute of Civil Engineering, Vol. 41, Issue 1, (1968), .

Legal

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

Ordnance survey map of Severn Bridge and Aust Viaduct First Severn Crossing

Map

This map is for quick reference purposes only and may not be to scale. This copy shows the entry on 02-Jul-2026 at 19:12:45.

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© Crown copyright [and database rights] 2026. OS AC0000815036. Use of this mapping is subject to Terms and Conditions.

End of official list entry

All text content is available under the Open Government Licence v3.0 , except where otherwise stated. Any supplied maps are © Crown Copyright [and database rights] 2026 OS AC0000815036 and may not be reproduced without permission.

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