TheCivilEngineer.org

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...

Civil Engineering News Recap of March 2025

You can now find TheCivilEngineer.org's latest news recap video on YouTube, which includes what we found to be the most interesting civil engineering news of March 2025. Namely, these were: 1) Hydro...

Telangana Tunnel Collapse: A Battle Against Time and Terrain

The Telangana tunnel collapse at the Srisailam Left Bank Canal (SLBC) tunnel on February 22, 2025, has triggered one of the most complex and dangerous rescue operations in recent history. The collaps...