List entry

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.

Name: SEVERN BRIDGE AND AUST VIADUCT, FIRST SEVERN CROSSING

List entry Number: 1379827

Location

SEVERN BRIDGE AND AUST VIADUCT, FIRST SEVERN CROSSING, M48 MOTORWAY

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

County District District Type Parish
GloucestershireForest of DeanDistrict AuthorityTidenham

National Park: 

Grade: I

Date first listed: 26-Nov-1999

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: 479259

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.

History

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Details

ST 58 NE AUST M48 MOTORWAY

297/7/10005 Severn Bridge and Aust Viaduct, First Severn 29.05.1998 Crossing

GV 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 foundations (cable anchorages and piers for towers); viaduct structure steel with concrete deck slab. Suspension bridge (spans 1000ft. -3240ft, -1000ft.) with aerodynamically shaped deck and inclined hangers; first bridge in the world to be built with these features. Viaduct 514ft. long, has three spans consisting of two box girders acting compositely with concrete slab. Part of the First Severn Crossing for the M4, consisting of Aust Viaduct, Severn Bridge and Wye Bridge (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.

SOURCES: Roberts, Sir G; Severn Bridge: Design and Contract Arrangements' {Proc.lnst.Civ.Eng. Vol41, 1968} Henry, D & Jerome, JA; Modern British Bridges' {1965} Brown, DJ; Bridges 1965-93'; Flint, AR; Strengthening and Refurbishment of the Severn Crossing {Proc.lnst.Civ.Eng.1992}



Listing NGR: ST5576690306

Selected Sources

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

National Grid Reference: ST 55761 90317

Map


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This copy shows the entry on 30-Jul-2014 at 02:12:47.