Tunneling and Underground Webinar Series

DFI's Tunneling and Underground Committee presents this webinar series. This committee's purpose is to identify and facilitate the advancement of new methods and technologies for the design, construction, inspection, maintenance and operation of tunnels and underground systems.

Past Dates

Thursday, April 9, 2026

Ground Information for Bidding Subsurface Projects

Thursday, September 25, 2025

Underwater Tunnel Rehabilitation with Diver Operated Vehicle

Professional Development Hours (PDHs)

Each webinar in the series provides 1.5 Professional Development Hours (PDHs) to registrants who have paid the $70 fee. Certificates will be generated after the registrant completes the webinar evaluation through the event module. To receive a certificate you MUST register independently, be paid in full, and login and view the webinar for the duration of the event.