Question to the Department for Transport:
To ask His Majesty's Government on what date Shaft No.4 at the Queensbury Tunnel was last fully inspected by examiners using rope access.
Examiners last inspected Shaft No.4 of the Queensbury Tunnel using rope access on 26 October 2015.
Shaft 4 has annual visual exams; the last one was carried out in September 2025.