TheCivilEngineer.org

Nepal’s First Highway Tunnel Nears Completion: The Nagdhunga–Sisnekhola Project

The Nagdhunga–Sisnekhola tunnel, Nepal’s first highway tunnel, is scheduled to open in January 2026. Project chief Saujanya Nepal confirmed that construction has reached its final stage, with only sl...

Vienna’s U2 Line Achieves Major Tunnelling Milestone

A major milestone has been reached in Vienna’s U2xU5 metro expansion with the successful completion of tunnel boring on Track 2 of the U2 line. This 2-kilometre stretch, driven by tunnel boring machi...

HS2 Delivery Strategy Undergoes Major Contractual Reset

The High-Speed 2 (HS2) project is entering a strategic reset phase, with plans to renegotiate existing civil engineering contracts. This shift aims to better align risk, costs, and delivery expectati...

HS2’s Northolt Tunnel Reaches Breakthrough After 14 Months of Continuous Excavation

The excavation of the 8.4-mile Northolt Tunnel under London marks a pivotal achievement in the HS2 project, now recognised as Britain’s second-longest tunnel. This twin-bore tunnel, which stretches b...

London Clay Excavated as Emily Hits Tunnel Breakthrough

A significant achievement has been recorded on London’s HS2 project as tunnel boring machine (TBM) Emily completed its 3.4-mile excavation through the eastern section of the Northolt Tunnel. Launched...

HS2’s Mary Ann TBM Begins 3-Month Dismantling After Tunnel Completion

The first tunnel boring machine (TBM) deployed on the HS2 Bromford Tunnel project has completed its excavation assignment and is now being disassembled for refurbishment. Known as Mary Ann, the 125-m...

Mumbai Sewer Tunnel Sets Record with 87m Curve

A significant engineering achievement was recorded in India’s tunnelling sector with the successful excavation of a tight 87-meter radius curve using the 3.14-meter diameter Rock EPBM (TBM S116). The...

HS2’s First Tunnel Bore Completed in West Midlands

HS2 has reached a major construction milestone with the successful breakthrough of its first tunnel in Birmingham. The 3.5-mile Bromford Tunnel was excavated by tunnel boring machine (TBM) Mary Ann,...

Quiet Power: How HS2 Combats Sonic Booms with Precision Engineering

High-speed rail systems face a peculiar challenge when trains enter tunnels at extreme velocities—what’s known as a "sonic boom" or more precisely, micro-pressure waves. As trains force air ahead of...

London’s Underground Hero: TBM Caroline Finishes Tunnel Stretch

London just witnessed another major milestone beneath its streets—TBM Caroline has completed a 5-mile underground journey, marking the second successful tunnel breakthrough this year for the HS2 proj...

News

News