Blackheath tunnel reopens after 10-week repair

The Blackheath tunnel first opened in 1849

A rail tunnel in south-east London which is prone to leaks and water damage has reopened after a 10-week closure for repairs.

Southeastern trains between Charlton and Blackheath have resumed using the mile-long Blackheath tunnel (about 1.5km), after being diverted via Greenwich during the second such closure within a year.

Network Rail said the £10m repair work saw thousands of bricks replaced, new lining added and drainage systems rebuilt.

David Davidson, Network Rail's chief operating officer for south eastern railway, said the programme was "groundbreaking" and reliability would be increased by the strengthening and waterproofing work.

The Blackheath tunnel also closed for 10 weeks in 2024

The tunnel, which first opened in 1849, had been closed since 27 May.

Mr Davidson added: "Savings from this approach are estimated to be around £10m and this can be reinvested across the network to deliver more improvements that will keep passengers moving."

"Last summer, engineers cleaned soot from the tunnel lining, carried out detailed surveys and replaced thousands of bricks to stop water getting in.

"This year a new tunnel lining will be installed, drainage systems rebuilt, and essential track work completed - including the removal of the waterlogged sections known as wet beds."