Design & Construction of the SR 99 Tunnel in seattle

the alaskan way viaduct replacement

The 18th Annual Paul Zia Distinguished Lecture, “Alaskan Way Viaduct Replacement: Design & Construction of the SR 99 Tunnel,” will be presented on Monday, September 23, 2019, at 3 p.m. at the Stewart Theatre located in the Talley Student Union on the campus of North Carolina State University.

Photo Credit: HNTB

Photo Credit: HNTB

This annual lecture honors Professor Emeritus Dr. Paul Zia, former professor and department head of NC State’s Department of Civil, Construction, and Environmental Engineering, and a structural engineer who is eminent in research, professional society leadership and practice.

This year’s presenters include Dr. Yang Jiang, Principal Engineer of HNTB; and Dr. Mike Wongkaew, Associate Vice President and National Tunnel Practice Lead of HNTB. The presenters will discuss various topics related to the design and construction the 2-mile double-decker tunnel under downtown Seattle:

 • Structural design and construction of the 57.5-ft diameter tunnel

• Owner considerations for the $3.3 billion project


Sponsorship opportunities are available.