This section contains information from tunnel related incidents, where the information is shared to encourage lessons to be learned.

Pile strike, Old Street, London

In March 2013, a bored cfa pile struck an operational rail tunnel north of Moorgate in the City of London.


Balcombe Tunnel, West Sussex

In Sept 2011, a partial collapse of a water diversion structure was noted during an in-tunnel inspection.


If you have any information that you are able to share with the industry, please contact the BTS Secretary.