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Tunneling News

California's landslide bypass tunnel moves into design

Caltrans has advanced the Last Chance Grade tunnel project into detailed design, moving closer to a long-term solution for one of the most unstable sections of US Highway 101 in northern California.Th...

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TBM launch shaft works advance for Poland’s high-speed rail tunnel

Preparation for Poland’s high-speed rail tunnel beneath Lodz has reached an important stage, with the launch cradle completed inside the Retkinia launch chamber and assembly of the tunnel boring machi...

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Year in Infrastructure 2026: acknowledging subsurface innovation and excellence

Bentley Systems has announced the finalists for the 2026 Year in Infrastructure Awards, highlighting infrastructure projects that are advancing digital engineering and helping solve some of the world’...

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Century-old New York rail tunnel rebuilt after corrosive flood damage

Amtrak has reopened Line 2 of the East River Tunnel in New York, completing the first major phase of a $1.6bn rehabilitation programme on one of the busiest passenger rail tunnel systems in the Wester...

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Deep ventilation works mark progress on world-record subsea road tunnel

A second ventilation shaft has broken through on the E02 Kvitsøy section of Norway’s Rogfast Tunnel, marking another important underground milestone on what is planned to become the world’s longest an...

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Norwegian tunnelling methods could reshape the Peak District tunnel case

A new proposal has revived the long-running idea of a road tunnel beneath the Peak District, aiming to improve journeys between Manchester and Sheffield while reducing heavy traffic through the nation...

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Second giant TBM begins work on India’s first undersea rail tunnel

A second large-diameter tunnel boring machine has started excavation on the Mumbai-Ahmedabad High-Speed Rail project, advancing one of the most technically demanding parts of India’s first bullet trai...

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UPLIFT aims to make deep geothermal energy safer and more predictable

A new Horizon Europe project called UPLIFT is targeting one of the most difficult questions in renewable energy: how to extract heat from deep, hot and low-permeability rock in a way that is technical...

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Lima completes tunnel excavation for Peru’s first fully underground metro

Excavation has been completed on Lima Metro Line 2, marking a major milestone for Peru’s first fully underground metro system. The breakthrough of the final diaphragm wall at Station 4 completed the p...

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Hong Kong launches tender for 7 km East Kowloon green transit system for steep urban districts

Hong Kong has launched an open tender for the Smart and Green Mass Transit System in East Kowloon, marking a major step toward delivering a new 7 km urban transit corridor through one of the city’s mo...

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