Program Brochures


Travelling SR 99 corridor once program is complete, February 2018 (pdf 4.5 mb)

Map of program-related construction contracts, February 2018 (pdf 1.6 mb)

Life after Bertha: Focus shifts from mining to other tunnel work, February 2018 (pdf 5.8 mb)

Understanding the program's cost and fundingFebruary 2018 (pdf 7.8 mb) 

SR 99 tunnel safetyFebruary 2018 (pdf 1.3 mb)

Building a new State Route 99 through Seattle, October 2017 (pdf 6.3 mb)

Keeping the Alaskan Way Viaduct safe during construction, February 2017 (pdf 2.5 mb)

Shape Memory Alloy and Engineered Cementitious Composite, September 2016 (632 kb)


Viaduct demolition

Demolition overview fact sheet, February 2018 (pdf 3.3 mb)

Online open house display boards, August 2017 (pdf 11.8 mb)

Presentation: Major public project construction noise variance meeting, November 14, 2017 (pdf 2.1 mb)


South-end viaduct replacement

Replacing the viaduct's south end, April 2014 (pdf 492 kb)

South Atlantic Street overpass open to traffic, July 2015 (pdf 1.35 mb)

Bicycle and pedestrian access near the South Atlantic Street overpass, May 2014 (pdf 3007 kb)