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The North American Tunneling Conference (NAT) is the premier biennial tunneling event for North America, bringing together the brightest, most resourceful and innovative minds in the tunneling and underground construction industry.

Authors Overview



The NAT program committee will consider all abstracts covering any/all aspects of the tunneling industry including, but not limited to, the following topics:

  • Tunnel Boring Machines
  • Ground Conditioning & Modification
  • Equipment Automation
  • NATM/SEM - Conventional Tunneling
  • Conventional Tunneling
  • Caverns
  • Small Diameter Tunneling
  • Shaft Construction
  • Emerging Technologies
  • Risk Management
  • Lining Design Advances
  • Fire & Life Safety
  • Rehabilitation
  • Design
  • Contracting Methods
  • Alternative Delivery Methods
  • Financing
  • Labor Training
  • Case Histories
  • Future Projects
  • Futuristic Tunneling


Dates & Deadlines

Please read the following information carefully and mark your calendar with important dates and deadlines. Prospective authors are asked to submit a 100 word abstract. For detailed guidelines for submitting a successful abstract, please visit Abstract Submission. Submitters will be notified in September of 2023 of acceptance or otherwise.


Communication from UCA

Please set your spam filter to accept messages from “”, "NAT" and “SME”. SMEweb is the address of the server that sends messages from the program committee to you via our online submission and review database, so do not reply to it. Please contact SME Authors Support at if you do not receive a submission confirmation email or notifications from the program committee by the deadline dates below.


Presenting Author Registration, Funding, and Visa Application

Registration opens March 2024. Presenting authors are required to register and pay fees. You are responsible for arranging your own funding; SME does not have funds available to pay registration or travel expenses. You are encouraged to begin planning for funding and visa arrangements now, as these processes can sometimes take several months. Visa and letter of invitation information can be found in the Attendee FAQs.


The Preliminary Program

The preliminary program and registration materials are posted online. Registration opens in March.


A Note About Deadlines

Deadlines will be strictly enforced in order to ensure efficient, fair, and professional management. NO exceptions will be made. Please mark your calendar with important conference dates and plan so that your activities take place well before deadlines to avoid unforeseen or unavoidable delays in your schedule, to avoid technical overloads or human error caused by last minute "traffic jams," and to give UCA and Program Committee members time to help you if needed.


Key Dates

  • June 30, 2023 - Abstracts Due for Consideration
  • September 2023 - Notice of Acceptance
  • October 31, 2023 - Draft Manuscripts Due
  • December 1, 2023 - Comments Returned to Authors
  • December 23, 2023 - Final Manuscripts Due




Ready to Submit Your Abstract Online?

Abstract submissions are now closed. Edit accepted abstracts below.

Edit Abstract


Questions about Abstract Submission?

For more information, please contact
UCA Programs Department
12999 E. Adam Aircraft Circle
Englewood, CO 80112
T: 303.948.4200