Program Brochures


Travelling SR 99 corridor once program is complete, January 2017 (pdf 4.5 Mb)

Building a new State Route 99 through Seattle, July 2016 (pdf 6.7 Mb)

Tunneling into the numbers, July 2016 (pdf 7.1 Mb)

Tunneling toward a new SR 99 corridor, July 2016 (pdf 4.9 Mb)

Map of program-related construction contracts, June 2016 (pdf 1.1 Mb)

Ground monitoring folio, February 2016 (pdf 6.5 Mb)

Understanding the program's cost and fundingOctober 2015 (pdf 1.5 kb) 

Keeping the Alaskan Way Viaduct safe during construction, July 2015 (pdf 2.9 Mb)

SR 99 tunnel safety, September 2015 (pdf 1.6 Mb)

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


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)