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A5758 road

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A5758 shield

A map of the A5758 road
Route information
Length2.2 mi (3.5 km)
HistoryFirst proposed during 1960s
Major junctions
 A565 A565 road

[ M 57  ] M57 motorway [ M 58  ] M58 motorway A59 A59 road

A5036 A5036 road
ToSwitch Island
Road network

The A5758 road (also known as Broom's Cross Road or the Thornton Bypass) is a 2.2-mile (3.5 km) single-carriageway road in Merseyside, England, constructed during 2014–15 and linking the A565 road in Thornton to Switch Island junction. The road is officially named the A5758 Broom's Cross Road, with Broom's Cross being the site of a medieval wayside cross near Thornton and the road numbering referencing the two motorways the road links to, the M57 and M58 motorway respectively.

Discussions about the need for the road to be constructed date back to the construction of Switch Island junction, with numerous public consultations held throughout the years to ascertain public support and opinion on the need for the road and the alignment it would take. The consultations have produced favourable responses from the majority of respondents, with several different alignment suggestions being proposed over the years.

Sefton Council gave their final approval in September 2013, with construction starting towards the end of the 2013 calendar year. The cost was in the region of £20.4 million, with the UK Government contributing £14.5M towards that and Sefton Council contributing £5.9M. The financial benefits over the 60 years following construction of the road has been estimated to be in the region of £140–200M.


Early proposals[edit]

The need for an improved route between Switch Island and the main Southport Road was first identified as far back as 1968, during planning for the M57, M58, and M62 motorways.[1] Shortly after the motorways opened, a number of proposals to allow traffic to bypass Thornton and Netherton were developed, given increased road traffic over the years that followed added to the congestion throughout Thornton.[2] A Sefton Council environmental statement in 2010 made reference to the traffic congestion that had affected routes around the Thornton area for "many years", as well as the impacts to quality of life and the environment.[3]

In 1990, a detailed proposal known as the Blue Route was submitted for planning permission, which would have involved a 4.7-mile (7.6 km) dual carriageway road between Switch Island and the Formby Bypass. This proposal was ultimately rejected by then Secretary of State for Transport in May 1995 despite favourable public consensus, on the grounds it would have negative impact on greenbelt land and be detrimental to conservation areas and protected species.[4]

Public consultations[edit]

Five years later in May 2000, a public consultation began which proposed six possible options, with the intention to understand the views and opinions of residents and businesses along the route between Thornton and Switch Island. Following feedback, six options were considered for possible highway construction,[5] those being:

A picture showing a map of different routings of Option 5, which was a single carriageway road between Switch Island the A565 Southport Road
Variations of Option 5
  • Option 1: Minimum approach involving maintenance and improved signage
  • Option 2: Switch Island Link Road and junction improvements at Brickwall Lane
  • Option 3: Co-ordinated improvements involving a Thornton bypass, Brickwall Lane enhancements and Switch Island Link Road
  • Option 4: Co-ordinated improvements involving a Thornton bypass, Netherton Relief Road and Switch Island Link Road
  • Option 5: Single carriageway road between Switch Island the A565 Southport Road
  • Option 6: Dual carriageway between Switch Island and Formby Bypass

Of all the considered options, Option 5 performed well during the appraisal process and was identified as being the preferred option to pursue by Sefton Council.[5] A further consultation was undertaken in 2003, during which questionnaires were distributed to ascertain resident and business viewpoints on the proposal identified in the 2000 consultation; it determined nearly 80% of respondents agreed for the need of a new road as proposed, with the majority of those questioned strongly agreeing. Of those that did not agree to the preferred option, nearly a third (30%) expressed concerns that the proposal may result in increased congestion, whilst a quarter (25%) expressed a preference for the route to be constructed as a dual carriageway.[6]

Feedback on 2006 proposals (% of respondents)[5]
Strongly Agree
Strongly Disagree
  •   Proposed alignment
  •   Restrict existing traffic

During a further consultation held 2006, local residents and businesses were sent another questionnaire asking them how strongly they agreed or disagreed with the proposed alignment and the need to restrict traffic levels and speeds once the proposed road had opened. Of the 12807 questionnaires that were sent, 10.9% were returned, with a further 100 completed at public exhibitions and online; the majority of responses were in agreement with the proposed alignment.[5]

Final decision[edit]

Following the 2006 public consultation, the scheme for a single-carriageway link to Thornton was given high priority and accepted in July 2006 by the then-Secretary of State for Transport, Douglas Alexander.[5] Funding was approved by the Department for Transport in February 2011 when Sefton Council accepted the terms and conditions that has been proposed.[2] After two objections were raised regarding the compulsory purchase order needed to acquire the land on which the road was to be built, a public inquiry was held in October 2012. Subsequent to this, the government inspector approved the plans.[7] Following Sefton Council giving their final approval in September 2013,[8] construction was proposed to begin by early November 2013 for a period of around 12 months,[9] with the financial benefits estimated to be in the region of £140–200 million over the 60 years post-construction.[10]


Following the completion of land acquisition, contractors Balfour Beatty marked out the route of the bypass in October 2013 offering the first glimpse of where the road would be built.[11]

Photo showing the Brickwall lane junction of the new road whilst being constructed, several months prior to opening
Construction works for new road at Brickwall Lane junction

Initial land works began in January 2014 with an expected completion date in the final quarter of 2014. In November 2014 it was reported that the project had been delayed due to poor weather and ground conditions, with the completion date pushed back to Spring 2015. Despite this, construction works to connect the new road to the main junction at Switch Island concluded by the end of December 2014, with the second phase of works taking place mostly throughout the night in January 2015 to minimise disruption.[12] The road surface began to be laid in February 2015 with a revised opening of Spring 2015 forecast.[13] Reports in March 2015 confirmed that due to frost and rainfall, the date of opening had been postponed to at least May 2015.[14]

After further slippage in the timescales, the opening date was revised from late June 2015 to 19 August 2015.[15] The delay was explained as being due to needing to undertake additional work to stabilise the road foundation in two locations to make it suitable to lay tarmac on. The road finally opened on the evening of 19 August 2015, costing £20.4M in total, of which Sefton Council funded £5.9M (approximately 30%) of the cost.[10]


A picture of a paved, partly-complete A5758 road without any markings on its pavement and with traffic cones lining its sides
Heading towards Switch Island from Brickwall Lane, during a charitable walk

The route is constructed as a 10-metre-wide (33 ft), two lane single carriageway with 1-metre-wide (3.3 ft) hardstrips and a 2.5-metre-wide (8.2 ft) verge, with a 80-kilometre-per-hour (50 mph) speed limit. The road has some sections on low embankment and others in shallow cutting where it runs close to existing residential properties, but is mostly close to existing ground level. Surface drainage is collected by a kerb and gully system and discharged into four new attenuation ponds. The route is only lit where there are specific safety reasons for doing so, such as at junctions and crossings along the route. There are no footways along the route other than specific pedestrian crossing points.[16]

The road starts at Switch Island junction, with direct connections to its namesake motorways (M57 and M58 respectively), as well as the A5036 and A59 roads which all converge at the junction. The road closely follows the route of the Northern Perimeter Road which is to its south, with the only major intersection being when it crosses the B5422 road. From there it continues in a northwest direction until it meets the A565 road, at a roundabout constructed as part of the scheme to improve efficiency for converging traffic.


Several months after opening in December 2015, a Sefton Council committee meeting recorded that the road was being very well used, with noticeably less traffic on the roads it was bypassing, those being the Northern Perimeter Road and Lydiate Lane respectively.[17] It was subsequently reported in January 2016 that a section of the road would need to undergo a series of repair works during the evenings of a three-week period, just five months after the road opened to traffic.[18] A year after opening, road users were giving generally positive feedback, with some confirming that travel times had been reduced and offers a more convenient means of accessing the motorways, although a common recurring concern were the junction issues at Switch Island.[19]

Since opening, there have been reports relating to an increased number of road traffic incidents at Switch Island, the main terminus of the A5758 road. Some road users have noted that a lack of clear road markings and signage may be a contributing factor towards the traffic collisions, whilst Sefton Council noted that they continue to review the operation of the road and associated junctions.[20] Following continued incidents at the junction with Switch Island, the council confirmed in July 2016 that it was in talks with Highways England and Merseyside Police with Bill Esterson, MP for Sefton Central, calling for changes to be considered to the road to improve safety.[21]

Plans were announced in February 2016 which proposed a new £200M road could be built through Rimrose Valley to link directly into the A5758 road in an effort to reduce the heavy congestion on the A5036 road;[22] Sefton Council rejected the proposal in March 2017, citing the desire to instead build a tunnel to overcome the congestion concerns.[23]


  1. ^ A5758 Broom's Cross Road Order 2012, Statement of Reasons (PDF) (Report). Sefton Metropolitan Borough Council. 28 May 2012. pp. 7–8. Retrieved 30 December 2016.
  2. ^ a b "A5758 early development". The Free Library. 2007. Retrieved 18 February 2014.
  3. ^ "Non-Technical Summary for Environmental Statement" (PDF). Sefton Council. 2010. Retrieved 7 April 2017.
  4. ^ Thornton to Switch Island Link Road - Planning Supporting Statement (PDF) (Report). Sefton Council. July 2010. p. 4. Retrieved 20 January 2017.
  5. ^ a b c d e Report on Thornton to Switch Island Link Road Consultation - Autumn 2006 (PDF) (Report). Sefton Council. February 2007. Retrieved 16 January 2017.
  6. ^ Thornton to Switch Island Corridor Study - Preferred Scheme Option (PDF) (Report). Sefton Council. 19 February 2004. Retrieved 18 January 2017.
  7. ^ "Thornton and Switch Island link road approved". BBC News. 3 May 2013. Retrieved 9 November 2013.
  8. ^ "Council to approve £19m link road". Liverpool Echo. 12 September 2013. Retrieved 5 January 2017.
  9. ^ Thornton to Switch Island Link Road - Notice to Proceed to Construction (PDF) (Report). Sefton Council. 12 September 2013. p. 7. Retrieved 7 April 2017.
  10. ^ a b "Broom's Cross Road (Thornton to Switch Island Link)". Sefton Council. Retrieved 21 September 2016.
  11. ^ "First glimpse of long-awaited Thornton Link Road as preparation work begins". Liverpool Echo. 17 October 2013. Retrieved 9 November 2013.
  12. ^ "Thornton Bypass - progress on the £19.5million road scheme". Southport Visiter. 30 November 2014. Retrieved 7 December 2014.
  13. ^ "£20million Thornton to Switch Island link road enters final stages of construction". Southport Visiter. 18 February 2015. Retrieved 21 February 2015.
  14. ^ "Opening of Thornton relief road put back until May". Southport Visiter. 11 March 2015. Retrieved 5 April 2015.
  15. ^ "Thornton bypass - the £20m link road opens August 19". Southport Visiter. 5 August 2015. Retrieved 25 January 2017.
  16. ^ Thornton Link Road final bid (PDF). Sefton Council (Report). Sefton Council. Retrieved 17 May 2015.
  17. ^ Overview and Scrutinty Committee (PDF) (Report). Sefton Council. 19 January 2016. p. 51. Retrieved 4 April 2017.
  18. ^ "Thornton relief road set to close for up to three weeks". 24 January 2016. Retrieved 26 January 2016.
  19. ^ "Thornton Bypass opening one year on - is it working?". Southport Visiter. 19 August 2016. Retrieved 25 January 2017.
  20. ^ "Switch Island and new Thornton bypass isn't safe, say frustrated motorists". Liverpool Echo. 8 May 2016. Retrieved 12 June 2016.
  21. ^ "Thornton Bypass under review after stream of accidents". Liverpool Echo. 4 July 2016. Retrieved 5 July 2016.
  22. ^ "Public meetings over proposed £200m road through Rimrose Valley park". Liverpool Echo. 8 February 2016. Retrieved 3 March 2017.
  23. ^ "Council wants highways bosses to build tunnel from Switch Island to new port of Liverpool". Liverpool Echo. 2 March 2017. Retrieved 3 March 2017.

External links[edit]