Advance Your Career at NAT 2026

Put yourself in a position to advance your future at the 2026 North American Tunneling Conference this June in Anaheim, CA.

Register Now

Present Your Research at RETC 2027

Your unique experiences and expertise can help us create another industry-leading tunneling conference. Submit your 100-word abstract by June 30, 2026

Submit Your Abstract

Mentor the Future of Tunneling

Down For That is an initiative aimed at informing students and educators about the industry through the development of key resources and opportunities.

Get Involved

Learn how to get involved with UCA.

Meet the people making a difference in the industry.

Search the webinar library for live online learning or on-demand.

Latest News

May 13, 2026

Tunnelling of the new cable tunnel below the Thames begins...

National Grid, the transmission owner in England and Wales, is expanding its high-voltage grid as part of The...

May 13, 2026

Robbins celebrates TBM acceptance for Ellicott City North...

Robbins marked a major project milestone in Q4 2025 with the substantial completion of the factory acceptance...

May 12, 2026

LA Metro D Line Extension opens to public on May 8...

In a significant leap forward for public transit in our region, the first section of the D (Purple) Line...

May 6, 2026

NAT 2026 to continue tradition of annual UCA Awards...

The Underground Construction Association (UCA) will present a series of awards as part of the 2026 North...

May 5, 2026

Herrenknecht TBM achieves breakthrough at Gotthard Road...

After advancing about 3.8 km (2.3 miles) through rock that was at times extremely hard and at times brittle,...

April 30, 2026

Terratec tunnel boring machine chosen for Palermo...

Terratec announced that one of its Earth Pressure Balance Machines (EPBMs) has been selected to drive the...

April 27, 2026

Major contract for Hudson Tunnel Project awarded to...

The Gateway Development Commission (GDC) awarded the contract for the Hudson Tunnel Project construction...

April 15, 2026

DC Water launches tunnel boring machine Mary at Potomac...

The Potomac River Tunnel Project’s first tunnel boring machine, Mary, has launched her northbound journey...

April 15, 2026

Excavation completed on Caterina, first tunnel on...

The excavation of the Caterina Tunnel has been completed, the first on Lot 1A of the Salerno-Reggio Calabria...

April 8, 2026

Expanded rail service will connect Downtown Los Angeles...

Los Angeles’ Metro announced that Section 1 of the D Line Subway Extension Project is expected to open on May...

About UCA

Discover an association tunneling and underground construction industries.

Read More

Become a Member

Learn how you can meet your career goals with a membership in UCA.

Read More
Mentor Students & Young Professionals

Make a positive impact the future generation of tunneling professionals.

Find Out How
Make a Difference

Volunteer with UCA and leave an impression on the industry and community.

Find Out How
Expand your tunneling knowledge

The hallmarks of tunneling professionals include adaptability, resiliency, optimism, and management of change.

Find Out How