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Latitude: 51.6092 / 51°36'33"N
Longitude: -2.6382 / 2°38'17"W
OS Eastings: 355900
OS Northings: 190230
OS Grid: ST559902
Mapcode National: GBR JN.9YXR
Mapcode Global: VH87V.7T48
Entry Name: Severn Bridge and Aust Viaduct First Severn Crossing
Listing Date: 29 May 1998
Source: Historic England
Source ID: 1119760
English Heritage Legacy ID: 469289
Location: Tidenham, Forest of Dean, Gloucestershire, BS35
District: Forest of Dean
Civil Parish: Aust
Traditional County: Gloucestershire
Lieutenancy Area (Ceremonial County): Gloucestershire
Church of England Parish: Olveston
Church of England Diocese: Bristol
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.
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