Royal Tweed Bridge
Coordinates: 55 ° 46 ′ 9 ″ N , 2 ° 0 ′ 28 ″ W.
| Royal Tweed Bridge | ||
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| Crossing of | River Tweed | |
| place | Berwick-upon-Tweed | |
| construction | Reinforced concrete - arch bridge | |
| overall length | 412.4 m | |
| Number of openings | four | |
| Longest span | 108.5 m | |
| start of building | 1925 | |
| completion | 1928 | |
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The Royal Tweed Bridge is a road bridge over the River Tweed in Berwick-upon-Tweed , Northumberland , England that was built to relieve the historic Berwick Bridge .
It was part of the A1 road from London to Edinburgh , until through traffic in the 1980s was led to the west via a large bypass and the A1 River Tweed Bridge . Since then it has mainly had local significance; the road over it has been downgraded to the A1167.
description
The bridge connects the high banks of the Tweed and is therefore on a higher level than the neighboring Berwick Bridge. It is 412.4 m long and has two lanes and two approx. 4.5 m wide sidewalks.
It crosses the river and a bank road with four flat arches with spans (from south to north) of 50.1 + 74.4 + 95.5 + 108.5 m. On the southern bank slope there are three and on the northern bank slope two fields with girder bridges.
The arches each consist of four parallel reinforced concrete ribs on which the roadway girder is elevated. At the apex of the arch, the ribs and the deck girder touch. The ribs of the shortest field are made of solid concrete, the others are hollow boxes . The deck girder consists of four longitudinal beams and a row of cross beams on which the deck slab rests. A diagonal wind bracing is included in each arch. The pillars and abutments are made of unreinforced concrete.
history
The Royal Tweed Bridge was designed by LG Mouchel & Partners and structural engineers Charles Bressey and JH Bean and executed by Holloway Brothers between 1925 and 1928. LG Mouchel introduced reinforced concrete in Great Britain as a licensee of François Hennebique .
At the time of opening, the Royal Tweed Bridge had the largest span concrete arch in the UK and was also the UK's longest road bridge.
The Royal Tweed Bridge was founded in 2009 as a Grade II * listed structure under monument protection provided.
Web links
- Aerial view from 1928 with Berwick Bridge, Royal Tweed Bridge and Royal Border Bridge on rstools.info
Individual evidence
- ↑ measurement on Google Earth; the most commonly stated length of 430 m includes part of the southern access road.
- ↑ a b c d e Royal Tweed Bridge on Historic England.org.uk
- ↑ Royal Tweed Bridge on Engineering Timelines.com gives slightly larger dimensions.