North London line

North London line
North London line
	Class 378 Capitalstar at Canonbury in 2010
Overview
Status	Operational
Owner	Network Rail
Locale	Greater London
Termini	Richmond; Stratford;
Stations	23
Service
Type	Rapid transit; suburban rail; freight rail;
System	National Rail; London Overground; London Underground;
Depot(s)	Willesden TMD
Rolling stock	Overground: Class 378 / Class 710; Underground: S7 Stock;
History
Opened	1869
Technical
Number of tracks	Two (mostly); Four (York Way–Arundel Square);
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	Overhead line, 25 kV 50 Hz AC; Third rail, 750 V DC;
Route map
	Legend
	Waterloo–Reading line
	to Reading
	Note: shared tracks with District line
	from Richmond to Gunnersbury
	Waterloo–Reading line
	to Waterloo
	Hounslow Loop Line
	Chiswick │ Kew Bridge
	District line via Earl's Court
	(former freight/Super Outer Circle link)
	third rail DC
	overhead AC
	Central line
	Acton–Northolt line
	West London line
	to Clapham Junction
	West Coast Main Line
	via Watford Junction
	Watford DC and
	Bakerloo lines (northbound)
	Watford DC and
	Bakerloo lines (southbound)
	Chiltern Main Line
	Metropolitan line (wraps Jubilee line tracks)
	Midland Main Line
	via Kentish Town
	Hampstead Heath Tunnel
	over Northern line
	Midland Main Line
	to St Pancras
	High Speed 1
	to St Pancras
	East Coast Main Line
	King's Cross │ Edinburgh
	High Speed 1
	to Channel Tunnel
	Northern City Line
	Moorgate │ Finsbury Park
	East London line
	City Branch
	Low Level
	Jubilee line to Stanmore│DLR to Lewisham
	former EC&TJR route
	to North Woolwich
	DLR is elevated on line of Silvertown Tramway
	from Tidal Basin to beyond Pontoon Dock
	Elizabeth line
	to Abbey Wood
	This diagram: view; talk; edit;

The North London line (NLL) is a railway line which passes through the inner suburbs of west, north-west, north, and north-east London, England between Richmond in the south-west and Stratford in the east, avoiding central London. Its route is a rough semicircle.

Although much of it originated as part of the North London Railway, the current route is the result of a series of amalgamations, closures and reopenings, and has a mix of third-rail and overhead electrical power supply. It remains heavily used by freight services in addition to the main London Overground (LO) service.^[1] Between Richmond and Gunnersbury, London Underground's District line shares tracks with London Overground services; the entire route is owned and maintained by Network Rail.

TfL took over the line in 2007 and introduced new stock as well as putting the line on the Tube map. It closed for four months in 2010 between Gospel Oak and Stratford and had a reduced service for another year to allow platform extensions and signalling upgrades.^[2]

From autumn 2024 the North London line and the West London section of the London Overground will be merged and named the Mildmay line (to honour the Mildmay Mission Hospital which treated victims of the HIV/AIDS crisis in the 1980s) and will be coloured light blue on the Tube map.^[3]

^ "Route 6 – North London Line and Thameside: 2009 Route Plan" (PDF). Network Rail. 2009. Archived from the original (PDF) on 7 June 2011. Retrieved 28 May 2009.
^ "London Overground to close from Gospel Oak to Stratford as part of £326m upgrade to deliver longer, more frequent trains". TfL. 18 December 2009. Archived from the original on 25 April 2010. Retrieved 6 February 2010.
^ Cite error: The named reference Names was invoked but never defined (see the help page).

[NRR6-1] "Route 6 – North London Line and Thameside: 2009 Route Plan" (PDF). Network Rail. 2009. Archived from the original (PDF) on 7 June 2011. Retrieved 28 May 2009.

[nll-closure-2] "London Overground to close from Gospel Oak to Stratford as part of £326m upgrade to deliver longer, more frequent trains". TfL. 18 December 2009. Archived from the original on 25 April 2010. Retrieved 6 February 2010.

[Names-3] Cite error: The named reference Names was invoked but never defined (see the help page).

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