
The Northern line extension to new stations at Nine Elms and Battersea will open to passengers on Monday 20 September, TfL has announced.
Work began on the 3km twin-tunnel railway between Kennington and Battersea Power Station in 2015, and has hit its autumn 2021 deadline, despite a pandemic, the ongoing Crossrail saga, and issues with TfL's budget. Not too shoddy, then.

Services on the extension start on the Monday morning, running from Kennington station on the Charing Cross branch. Initially, a peak time service of six trains per hour will run, but this is expected to double by mid-2022.
There'll be five trains per hour during off-peak times, doubling to 10 trains per hour next year.
Both Nine Elms and Battersea Power Station — the first new stations on the Northern line for 80 years — are in zone 1, and offer step-free accessibility.
Stuart Harvey, Director of Major Projects at TfL, said: "In just a few weeks' time, we'll be opening the first major tube extension this century... It's going to be a fantastic moment when this thriving south London neighbourhood makes it onto the tube map for the first time."
Indeed! And just imagine when the Bakerloo line extension is done!

If our maths is correct, when the two new London Underground stations open, it'll take the total up to 272. Make sure you recalibrate for any pub quizzes.