Get Your Gears Turning at RETC

Every two years, industry leaders and practitioners from around the world gather at the Rapid Excavation and Tunneling Conference (RETC), the authoritative program for the tunneling profession, to learn about the most recent advances and breakthroughs in this unique field. This comprehensive conference helps practicing professionals keep up with the ever-changing and growing tunneling industry. Stay on top of new trends and technologies as well as innovative concepts, new equipment, materials, management, financing, and design challenges.

Welcome to RETC 2027!

Why Attend RETC

Learn more about this bi-annual tunneling event that draws underground construction engineers from around the US.

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Upcoming Events

There’s no need to wait until 2027, explore other professional development opportunities and events from UCA.

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Stay Current

The call for papers open in the spring of 2026. Join our email list learn about import deadlines like this.

Don’t miss the nation’s leading tunnel conference!

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EXPECTED ATTENDEES

RETC is renowned for attracting the best and the brightest from around the world. Make sure you are included

TECH SESSIONS

You will be sure to increase your knowledge when you take part in the 21 technical sessions covered at RETC 2025

EXHIBITORS

Increase your exposure, build your network and be recognized as a leader in the industry when you exhibit or sponsor at RETC 2025

Thanks to Our Overall Conference Sponsor

Thanks to Our Conference Sponsors

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