Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,135 pages of information and 233,678 images on early companies, their products and the people who designed and built them.

Difference between revisions of "Over Bridge, Gloucester"

From Graces Guide

Jump to: navigation, search
 
Line 4: Line 4:
  
 
at Over, Gloucester
 
at Over, Gloucester
 
The lowest crossing of the river Severn before the Severn Crossings, this masonry bridge was built by [[Thomas Telford]] in 1828.
 
  
 
Over Bridge, also known as Telford's Bridge, is a single span stone arch bridge spanning the canalised West Channel of the River Severn near Gloucester. It links Over to Alney Island.
 
Over Bridge, also known as Telford's Bridge, is a single span stone arch bridge spanning the canalised West Channel of the River Severn near Gloucester. It links Over to Alney Island.
  
Although there was a crossing at Over recorded in the Domesday Book, this famous bridge was built by Thomas Telford between 1825 and 1828, to carry traffic east-west. It was opened in 1830 and remained in use for traffic until 1974. Until the Severn Bridge was built in the 1960s this was the lowest point downstream that the Severn could be crossed by road bridge.
+
Although there was a crossing at Over recorded in the Domesday Book, this famous bridge was built by [[Thomas Telford]] between 1825 and 1828, to carry traffic east-west. It was opened in 1830 and remained in use for traffic until 1974. Until the Severn Bridge was built in the 1960s this was the lowest point downstream that the Severn could be crossed by road bridge.
  
The arch spans 150 feet (46 m), and was based on Jean-Rodolphe Perronet's 1774 design for a bridge over the River Seine at Neuilly. It combines both an elliptical profile over most of the soffit with a segmental profile at its faces. This feature is known as a corne de vache.
+
The arch spans 150 feet (46 m), with 35 ft rise, although the tapered haunches give the impression of a flatter arch, while also aiding the flow of water during floods. It was based on Jean-Rodolphe Perronet's 1774 design for a bridge over the River Seine at Neuilly. It combines both an elliptical profile over most of the soffit with a segmental profile at its faces. This feature is known as a corne de vache.
 
 
When built, the arch sank by 2 inches when
 
 
 
150 ft span, with 35 ft rise, although the tapered haunches give the impression of a flatter arch, while also aiding the flow of water during floods.
 
  
 
There is a noticeable dip at mid-span. The centre of the arch dropped 3" on removal of the wooden centring, and a further 7" due to displacement of the eastern abutment, which, due to false economy, had inadequate foundations. The western abutment was on firmer ground.
 
There is a noticeable dip at mid-span. The centre of the arch dropped 3" on removal of the wooden centring, and a further 7" due to displacement of the eastern abutment, which, due to false economy, had inadequate foundations. The western abutment was on firmer ground.
 
The design was based on a much earlier bridge at Neuilly on the Seine, designed by Jean-Rodolphe Perronet.
 
  
 
An interesting account of the bridge is available [http://billharvey.typepad.com/BridgeOfTheMonth/over%20bridge%202.pdf here] <ref>Telford’s bridge over the Severn at Over, Gloucester', by Bill Harvey, 2011</ref>
 
An interesting account of the bridge is available [http://billharvey.typepad.com/BridgeOfTheMonth/over%20bridge%202.pdf here] <ref>Telford’s bridge over the Severn at Over, Gloucester', by Bill Harvey, 2011</ref>
Line 25: Line 17:
 
The spandrels are not solid, there being five cells across the width of the bridge, 2 ft 6" wide, as can be seen in a drawing in the above link.
 
The spandrels are not solid, there being five cells across the width of the bridge, 2 ft 6" wide, as can be seen in a drawing in the above link.
  
The bridge has been bypassed, but is accessible on foot. Access from the fast and busy A48 needs to be well researched before attempting to reach the footpaths!
+
The bridge has been bypassed, but is accessible on foot. Access from the fast and busy A40 needs to be well researched before attempting to reach the footpaths!
  
  
Line 33: Line 25:
 
== Sources of Information ==
 
== Sources of Information ==
 
<references/>
 
<references/>
 +
 +
* [https://en.wikipedia.org/wiki/Over_Bridge Wikipedia]
  
 
{{DEFAULTSORT: }}
 
{{DEFAULTSORT: }}

Latest revision as of 19:09, 28 September 2019

JD Over Bridge01.jpg
JD Over Bridge02.jpg
The eastern abutment, showing that the right hand portion was evidently sinking during construction

at Over, Gloucester

Over Bridge, also known as Telford's Bridge, is a single span stone arch bridge spanning the canalised West Channel of the River Severn near Gloucester. It links Over to Alney Island.

Although there was a crossing at Over recorded in the Domesday Book, this famous bridge was built by Thomas Telford between 1825 and 1828, to carry traffic east-west. It was opened in 1830 and remained in use for traffic until 1974. Until the Severn Bridge was built in the 1960s this was the lowest point downstream that the Severn could be crossed by road bridge.

The arch spans 150 feet (46 m), with 35 ft rise, although the tapered haunches give the impression of a flatter arch, while also aiding the flow of water during floods. It was based on Jean-Rodolphe Perronet's 1774 design for a bridge over the River Seine at Neuilly. It combines both an elliptical profile over most of the soffit with a segmental profile at its faces. This feature is known as a corne de vache.

There is a noticeable dip at mid-span. The centre of the arch dropped 3" on removal of the wooden centring, and a further 7" due to displacement of the eastern abutment, which, due to false economy, had inadequate foundations. The western abutment was on firmer ground.

An interesting account of the bridge is available here [1]

The spandrels are not solid, there being five cells across the width of the bridge, 2 ft 6" wide, as can be seen in a drawing in the above link.

The bridge has been bypassed, but is accessible on foot. Access from the fast and busy A40 needs to be well researched before attempting to reach the footpaths!


See Also

Loading...

Sources of Information

  1. Telford’s bridge over the Severn at Over, Gloucester', by Bill Harvey, 2011