Essential maintenance and renewal work in a cramped Victorian railway tunnel for the Tyne and Wear metro system has been completed.
Metro engineers replaced 800m of powerlines in the North Shields tunnel, the oldest on the Tyne and Wear Metro system.
Nexus, which carried out the cable work, has renewed the ageing overhead catenary wire in the 162-year-old tunnel between North Shields and Tynemouth.
It owns, manages, and is modernising Metro in a £300 million programme making it fit for several decades of further use.
Nexus Director of Rail and Infrastructure Ken Mackay said: “This was a successful job to renew a section of line used by more than 180 trains every day, completed on a Sunday to reduce the inconvenience to passengers.
“The North Shields tunnel dates to the era of Robert Stephenson, and is one of the oldest parts of the Metro system - it is a cramped dirty place to work but keeping it in good shape is crucial to keeping the trains running reliably.”