HS2 is on BBC.
https://www.bbc.com/news/articles/ckg2d1v5yyxo
The Northolt tunnels are part of the HS2 project which is 93% complete, the project managers say.
https://www.bbc.com/news/articles/ckg2d1v5yyxo
Inside HS2: Meet London's miners working on the Northolt tunnels
www.bbc.comThe Northolt tunnels are part of the HS2 project which is 93% complete, the project managers say.