september 23, 2019 | 3pm

Design & Construction of the SR 99 Tunnel in Seattle

The Alaskan Way Viaduct Replacement


This lecture is made possible in part by the generous
support of our signature sponsors
Dr. J. Darrin Holt, PE and WSP USA


Online registration is now closed. Please register at the check-in tables at the event!

Mark your calendars for September 23, 2019 at 3pm, for the 18th annual Paul Zia Distinguished Lecture on this exciting new project. The lecture is proud to feature presenters Dr. Yang Jiang, PE, SE Principal Engineer of HNTB; and Dr. Mike Wongkaew, PE, SE, Associate Vice President and National Tunnel Practice Lead of HNTB; with a special welcome by Linea Laird, PE of WSP USA.

The presenters will discuss various topics related to the design and construction the 2-mile double-decker tunnel under downtown Seattle, including the design and construction of the 57.5-ft diameter tunnel and owner considerations for the $3.3 billion project.

The lecture is free and open to the public. 2 PDHs will be available. Following the lecture, all professional attendees are invited to stay for a cocktail reception sponsored by WSP USA.

A special thanks to all our signature, gold, and silver sponsors:

2019 sponsor logos.jpg