Severn Bridge and Aust Viaduct First Severn Crossing, Aust, South Gloucestershire

Entry Name: Severn Bridge and Aust Viaduct First Severn Crossing

Listing Date: 29 May 1998

Grade: I

Source: Historic England

Source ID: 1119760

English Heritage Legacy ID: 469289

Also known as: Severn Bridge And Aust Viaduct, First Severn Crossing

ID on this website: 101119760

Location: Forest of Dean, Gloucestershire, BS35

County: South Gloucestershire

Civil Parish: Aust

Traditional County: Gloucestershire

Lieutenancy Area (Ceremonial County): Gloucestershire

Church of England Parish: Olveston

Church of England Diocese: Bristol

Tagged with: Suspension bridge Road bridge Bridge

Find accommodation in
Chepstow

Description

AUST

ST58NE

297-0/7/10005

M48 MOTORWAY

Severn Bridge and Aust Viaduct First Severn Crossing

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.

External Links

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.