Attend the Nation's Leading Tunneling Conference

Don't miss RETC 2025, which offers a variety of technical sessions focusing on top-of-mind industry issues, trends and innovations.

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Enter the 2025 UCA Media Contest

Through April 30, submit media capturing enchanting landscapes, innovative technologies, and the brilliant humans that define the underground world.

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Celebrating UCA Volunteers

During National Volunteer Week, we extend our sincere appreciation to the UCA volunteers who help make our organization the world’s top underground construction society.

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Check Out the 2024 UCA Tunnel Watch List

Spotlighting the most important tunneling and underground construction projects in the US and the positive impact they will make, if funded.

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Inspiring Tunneling Professionals worldwide

Latest News

April 23, 2025

Unique HS2 tunnel portal completed to solve high-speed ...

Contractors building HS2 have completed work on a pair of innovative extensions to the southern portal of its ...

April 14, 2025

ITA Tunnelling Awards Nominations are open

The 11th edition of the  ITA Tunnelling Awards will take place in Belgrade, Spain on Oct. 1. Nominations for ...

April 14, 2025

World’s largest diameter TBM set to launch in China

On March 26th, the world’s largest diameter earth pressure balance-double shield convertible tunnel boring ...

April 8, 2025

Herrenknecht receives bauma innovation award for tunnel ...

Herrenknecht AG was awarded the bauma Innovation Award 2025 in the “Machine Technology” category for the ...

April 7, 2025

Dallas to host RETC 2025 June 8-11

The Rapid Excavation and Tunneling Conference (RETC) returns June 8-11 in Dallas, TX. The conference has a ...

March 20, 2025

Epiroc delivers Tunneling Intelligence at world’s longest ...

The Rogfast tunnel, set to be the world’s longest (26.7 km or 16.5 miles) and deepest (392 m or 1,286 ft) ...

March 20, 2025

New Hudson Tunnel Project analysis shows active ...

The Gateway Development Commission (GDC) commissioned a new economic impact analysis of the first five ...

March 19, 2025

US passenger railroad Amtrak CEO abruptly steps down

Amtrak CEO Stephen Gardner said Wednesday he will step down immediately after more than four years as head of ...

March 19, 2025

Stad Tunnel Project narrows qualified contractors to four

The Norwegian Coastal Administration (Kystverket) has narrowed the list of qualified contractors for the Stad ...

March 12, 2025

Piney Branch Tunnel Project moves forward

DC Water’s Piney Branch Tunnel Project is moving ahead with construction, the next phase of the Authority’s ...

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