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:
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)
Fun Fact
The Waterloo & City line is
the only line entirely underground with no surface or above-ground sections. It also uniquely
does not operate on Sundays, a rarity among London Underground lines. This reflects its primary purpose as a weekday commuter route.
Conclusion
Though small in size, the Waterloo & City line is a powerful connector in London’s transport network. With its rich history, strategic route, and high usage, it remains a fascinating part of the city’s Underground story.
More information for visiting London
Here are some related articles to help you get to know London better.
- Cost of Living in London: Discover the true cost of living in London, including housing, transport, groceries, and more - plus tips for budgeting in one of the world's most expensive cities.
- Driving in London: Planning to drive in London? Learn about roads, car rentals, parking, tolls, and key tips for tourists and visitors from outside the capital.
- Driving Tips for Visiting London: Thinking of driving to London? Discover the best times to travel, congestion tips, parking apps, breakdown help, and petrol advice for a smoother journey.
- Evolution of London's Streets: Discover the fascinating history of how London's streets developed from ancient footpaths to today's complex network of roads across the capital.
- History of Immigration to London: Discover the rich history of immigration to London, from Huguenots to Bangladeshis, and how diverse communities have shaped the city's vibrant identity.
- How Big Is London Compared to Other World Cities?
- How London's Streets Measure Up: A Global Comparison of Road Widths
- How Streets of London are Named: Discover how London streets get their names, who decides them, and how historic, political, and public influences shape street naming in the capital.
- How the Grosvenor Family Came to Own Much of Mayfair, Belgravia and Pimlico: Explore how the Grosvenor family came to own much of Mayfair, Belgravia, and Pimlico, and learn about their historical connection (or lack thereof) with the British royal family and government.
- Living and working in London
- London's Quiet Collapse: How Living Standards Fell as Costs Skyrockted (1975-2025): Explore how London residents endured rising costs and falling living standards from 1975 to 2025 - from rocketing rents to wage stagnation and inflation.
- Marvel of the London Underground: Discover the history, challenges, and triumphs of the London Underground - the world's first underground railway and a vital transport lifeline for the UK capital since 1863.
- Moving to London: Expat Tips for Settling in Westminster: Essential advice for expats moving to London's Westminster: neighborhood insights, cost of living, transportation, housing, healthcare, schools, and tips to help you feel at home in the heart of the city.
- Places in London that aren't pronounced the way they're spelled
- Shopping in London: Discover London's diverse shopping scene
- Taking the bus in London: This is your complete guide to taking the bus when in London.
- The Anglican Faith: A Visitor's Guide to the Church of England: Learn about the Anglican faith and its deep ties to London's landmarks like Westminster Abbey and St Paul's Cathedral.
- Top 10 London Streets Every Visitor Must See: Discover London through its most iconic thoroughfares - 10 streets every visitor must experience. From historic Abbey Road to vibrant Camden High Street, explore culture, shopping, and hidden gems.
- Why are most roads in Central London so narrow? Learn why there are so few multi-lane roads and elevated highways in the heart of the city.