Boyne River Bridge

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Boyne River Bridge

M1 traffic crossing Boyne River Bridge
Carries4 lanes
CrossesBoyne River
LocaleCounty Louth, 3km west of Drogheda
Maintained byCeltic Roads Group
DesignerRoughan & O'Donovan
Designcable-stayed bridge
Total length352.5m
Width34.5m
Height95m
Longest span170m
Number of spans6
Piers in water0
Vertical clearance20m
Construction begin2000
Construction end2003
Opened9 June 2003
Coordinates53°43′04″N 6°23′48″W / 53.717866°N 6.396704°W / 53.717866; -6.396704
 
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Boyne River Bridge

M1 traffic crossing Boyne River Bridge
Carries4 lanes
CrossesBoyne River
LocaleCounty Louth, 3km west of Drogheda
Maintained byCeltic Roads Group
DesignerRoughan & O'Donovan
Designcable-stayed bridge
Total length352.5m
Width34.5m
Height95m
Longest span170m
Number of spans6
Piers in water0
Vertical clearance20m
Construction begin2000
Construction end2003
Opened9 June 2003
Coordinates53°43′04″N 6°23′48″W / 53.717866°N 6.396704°W / 53.717866; -6.396704

The Boyne River Bridge is a cable-stayed bridge in County Meath, Ireland.[1] It spans the Boyne River 3 kilometres (1.9 mi) west of Drogheda on the county boundary between County Meath and County Louth and is part of the M1 Northern Motorway. (It was the longest such bridge in Ireland until 19 October 2009, when the River Suir Bridge opened on the N25.) Due to environmental concerns, an Environmental Impact Statement (EIS) was carried out for the bridge separately from the M1 EIS -- the first such formal EIS carried out and published for a bridge in Ireland.[2] In 2006 the bridge won the Excellence Award (Civil) from the Association of Consulting Engineers of Ireland.[3] The bridge was built from 2000 to 2003 and was designed by Roughan and O’Donovan, who were awarded the ACEI Presidential Award in 2005 for the design.[4]

Overview

Designing a road bridge over the Boyne was not an easy task. At the chosen point, 3 kilometres (1.9 mi) upstream from Drogheda, the ground level on the south is elevated, with a sudden drop while the north bank slopes gradually down to the river. The area is environmentally sensitive, especially the reed beds on the north bank and the flora and fauna of Yellow Island in the middle of the river. The area has a rich heritage as it is also situated adjacent to the area in which the Battle of the Boyne took place in 1690.

The answer was a cable-stayed bridge. Although at a cost of €35 million it would be more expensive than a standard road bridge, it could incorporate a much longer main span without the need for supports in the river, so the engineers could protect the river and the island from any interference. It would also look attractive, with a tall pylon at the south side and cable stays fanning out from it, supporting the main structure.

Opened on 9 June 2003, the bridge is managed under a public private partnership between the National Roads Authority on behalf of the Irish Government and a private company, Celtic Roads Group. The concession company has an obligation to maintain the road for 30 years.

The bridge and motorway is tolled in both directions to finance its construction and maintenance.

In 2006, the Bridge was awarded the Excellence Award (Civil) from the Association of Consulting Engineers of Ireland.

Most recently in October 2012, proposals from Meath County Council have come forward that they wish to rename the Bridge after former President, Mary McAleese. This has been met by opposition from the people of Drogheda who wish it to remain the Boyne Cable Bridge

References

  1. ^ Bypass 'to cut journey times', BBC NEWS
  2. ^ The Design and Construction of the Boyne Bridge, page 4
  3. ^ ACEI Excellence Award (Civil) 2006
  4. ^ ACEI Member News