The Lioness line is a London Overground railway line that runs from London Euston to Watford Junction in Greater London and Hertfordshire, running the full length on the Watford DC Line. Prior to the name being adopted in November 2024, [1] it was labelled in Transport for London timetables as the Watford Junction to Euston route. [2]
The line runs beside the West Coast Main Line (WCML) for most of its length. The rolling stock used on the line are the London Overground Class 710 "Aventras" made by Bombardier.
The Watford New Line was opened in stages by the London and North Western Railway from 15 June 1912 as part of a wider scheme of suburban capacity improvement and electrification. Delayed by World War I, full electric service from Watford Junction to Euston commenced on 10 July 1922.
The line was operated by British Rail and was part of Network SouthEast from 1986. In June 1988 it was rebranded as the Harlequin line. [3] The name was selected by a competition organised by British Rail. The winning entry, by a commuter from Pinner, was made up of a combination of Hatch End, Harlesden and Queen's Park stations. [4] The rebrand cost £4,000,000 (equivalent to £11,947,378in 2025) and was launched at Wembley Central station by Ed Stewart, Ian St John and Jimmy Greaves. [4]
In April 1994, in preparation for rail privatisation, the line became part of the North London Railways train operating unit. [5] From March 1997 until November 2007, the line was operated by Silverlink. In November 2007, Transport for London (TfL) took full management control of all the intermediate Watford DC line stations as part of the London Overground (LO) service with staffing during opening hours, automatic ticket gates and planned station refurbishment to the standard of the Tube network. [6]
The name proposed for this service in 2015 was the 'Watford Local line'. [7] In 2021, Sadiq Khan announced that if re-elected as Mayor of London, he would give the six services operated by London Overground unique names that would reflect London's diversity, working with his Commission for Diversity in the Public Realm. [8] In July 2023 TfL announced that it would be giving each of the six London Overground lines unique names by the end of 2024. [9] [10] [11] In February 2024, it was confirmed that the Watford DC line would be named the Lioness line, to honour the England women's national football team who became European champions at Wembley Stadium in 2022, and would be coloured yellow on the updated network map. [12]
As of November 2024 [update] , the typical off-peak service pattern is: [2]
| Lioness line | ||
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| Route | tph | Calling at |
| Watford Junction to London Euston | 4 | |
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Legend | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Another proposal to bring London Underground service to Watford Junction was the Croxley Rail Link, [13] which envisaged diverting the Watford branch of the Metropolitan line along a re-opened stretch of track to the west of Watford, effectively reinstating the former Croxley Green to Watford Junction service. Underground trains would then join the DC line at Watford High Street, potentially forming an interchange either with London Overground or the Bakerloo line, depending on the outcome of other projects. Funding for this project was agreed during November 2015, [14] however after cost overruns and disagreements over funding sources, work on the project stopped in 2017, and it was confirmed in 2018 that the project would not be going ahead in its current form. [15] [16]