- Start
- Dec 22, 199990% CONFIDENCEfrom the source
Jubilee Line Platforms Open at Westminster Underground
- The deep-level Jubilee line platforms at Westminster opened on 22 December 1999 as part of the Jubilee Line Extension, alongside the sub-surface platforms first opened in 1868[3]
- The station was rebuilt with Portcullis House above it, both designed by Michael Hopkins and Partners; the 39 m deep station box was the deepest excavation in central London[3]
- Big Ben's clock tower stands only 34 m from the box; 50 m steel tubes with grout injection limited movement to a maximum 35 mm versus at least 120 mm without[3]
- The Jubilee Line Extension is 10 miles linking Green Park to Greenwich and Stratford with 11 stations, was severely behind schedule, and was finished with Bechtel's fast-track push for the December 1999 deadline tied to the Millennium Dome[2]
- The Jubilee is the only London Underground line connecting with every other line; cost is given as $5.3 billion by Bechtel[2]
References 382% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%youtube.com/watch?v=O0ZkVFmHUNAyoutube.com· Posted Sep 14, 2026· Starts Dec 22, 1999 ✓· 33% of score
Happened as dated, per the source: "The Jubilee line platforms were opened on 22 December 1999."
- [2]80%Jubilee Line Extension - Bechtelbechtel.com· Added Sep 14, 2026· 33% of score
Bechtel's own project page confirms it delivered the Jubilee Line Extension, including the rebuilt Westminster station, ahead of the December 1999 deadline, but does not itself give the Westminster platforms' exact opening day.
- [3]75%Westminster tube station - Wikipediaen.wikipedia.org· Added Sep 14, 2026· 33% of score
Wikipedia confirms "the Jubilee line platforms were opened on 22 December 1999" at Westminster station, matching the pin's stored date exactly.
Suggest a correction
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.
