Construction work has been completed on HS2’s longest tunnel, including extensions designed to prevent sonic booms..
HS2 Finishes Construction On Longest Tunnel
17 May, 2025
4 July, 2025
31 October, 2025
20 September, 2025
11 July, 2025
4 February, 2025
23 April, 2024
7 December, 2025