Councillors voted to pursue the idea of a tunnel between Yell and Unst, approving up to £200,000 to progress the project.

Contractor to examine nearly 48km of tunnels for the utility.

A round-up of the most impressive construction pictures from the past month.

The realigned A361, which runs over one of the longest ‘cut-and-cover’ tunnels on the HS2 project, has been reopened.

A small London museum dedicated to the first tunnel in the world to be built under a major river will close in September to undergo a £1.85m revamp.

HyperTunnel has signed a deal allowing AmcoGiffen exclusive use of its breakthrough robot tunnelling construction tech in the UK rail sector.

Contractors working for HS2 have transported a 160t tunnel boring machine cutter head to a new digging site in a complex overnight operation.

Helicopters have been used to airlift construction materials into position for essential repairs to a ventilation shaft in one of Britain’s deepest railway tunnels.