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Aust Severn Powerline Crossing is the longest
Aust Severn Powerline Crossing is the longest overhead power line
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-p ...
span in the United Kingdom with a length of .
History
The crossing spans theRiver Severn
, name_etymology =
, image = SevernFromCastleCB.JPG
, image_size = 288
, image_caption = The river seen from Shrewsbury Castle
, map = RiverSevernMap.jpg
, map_size = 288
, map_c ...
between Aust
Aust is a small village in South Gloucestershire, England, about north of Bristol and about south west of Gloucester. It is located on the eastern side of the Severn estuary, close to the eastern end of the Severn Bridge which carries the M48 ...
and Beachley
Beachley is a village in Gloucestershire, England, near the border with Monmouthshire, Wales. It is located on a peninsula at the confluence of the rivers Wye and Severn, where the Severn Bridge ends and the smaller secondary bridge over the ...
and is part of the National Grid.
It was commissioned in 1959, and comprises two 275 kV electricity circuits, which form part of the 275 kV Iron Acton to Whitson line.
Construction
It is situated south of theSevern Bridge
The Severn Bridge ( cy, Pont Hafren) is a motorway suspension bridge that spans the River Severn between South Gloucestershire in England and Monmouthshire in South East Wales. It is the original Severn road crossing between England and Wale ...
and was built by J. L. Eve Construction, which became Eve Group, and is now Babcock Networks. It is mounted on two pylons, each tall. The pylon on the Aust side of the River Severn stands on a caisson accessible via a small bridge.
See also
*List of spans
The following is a list of spans, either used for overhead line crossings of rivers, sea straits or valleys, as antenna or for aerial tramways.
Powerline spans in flat areas with high pylons
At these spans the sag of the conductors is less t ...
* Powerline river crossings in the United Kingdom
Powerline river crossings comprise both overhead lines and cable tunnels beneath rivers and estuaries. Overhead power lines are supported on towers (called pylons in the UK) which are usually significantly taller than overland pylons and are more w ...
* Crossings of the River Severn
This is a list of crossings of the River Severn in Great Britain (including bridges, tunnels, ferries and fords), in order from source to mouth.
The Severn has historically been a very important and busy river, and has been bridged throughou ...
* Crossings of the River Wye
*Severn-Wye Cable Tunnel
The Severn-Wye Cable Tunnel, also known as the Severn Cable Tunnel, carries high-voltage (400 kV) electricity transmission lines beneath the estuaries of the River Severn and River Wye between Newhouse (Mathern), Monmouthshire and Aust, South Glou ...
References
{{DEFAULTSORT:Severn Powerline Crossing, Aust River Severn Towers in Gloucestershire Powerline river crossings Electric power infrastructure in England National Grid (Great Britain) Tidenham South Gloucestershire District