The Waterloo & City Line of the London Underground
Overview of the Waterloo & City Line
The Waterloo & City line, often affectionately known as "The Drain," is a unique and compact line of the London Underground. Unlike most Tube lines, it serves only two stations—Waterloo and Bank—making it the shortest line in the network.Geography and Route
Geographically, the line runs beneath the River Thames, connecting the south bank at Waterloo with the heart of London’s financial district at Bank. It is entirely underground, covering a straight path between these two vital transport and business hubs.Length and Usage
The total length of the Waterloo & City line is approximately 2.37 km (1.47 miles). Despite its short span, it is heavily used, especially on weekdays. Prior to the pandemic, the line was used by around 15 million passengers annually, reflecting its role as a commuter lifeline.
Painting of Bank Station of the Waterloo & City Line (View full-size image here)
History and Construction
The line opened on 8 August 1898, built by the London and South Western Railway to provide a direct connection between Waterloo Station and the City of London. It was originally operated using electric trains, which was groundbreaking for its time.Name Origin
The line’s name simply reflects its termini: Waterloo and City (referring to the City of London). Though the nickname “The Drain” has long been popular among Londoners, the official name “Waterloo & City Railway” has been used since its inception.Stations on the Line
The Waterloo & City line has just two stations:- Waterloo
- Bank
Areas Served
The line connects the busy South Bank area, known for theatres, the London Eye, and major rail connections, with the City of London, the capital’s historic and financial core. It plays a key role for commuters traveling between these two bustling zones.Interchange Stations
Despite its brevity, both ends of the line offer excellent interchange options:- Waterloo: Bakerloo, Jubilee, Northern lines; National Rail
- Bank: Central, Northern, DLR, and the Waterloo & City line itself (to return)