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List of Seattle megaprojects

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This is a list of megaprojects in the Seattle area. For this list, a megaproject follows the often cited definition of $1 billion (2017 dollars) or more.

Name Type Status Cost Notes
Sound Transit 3 Transit In progress $54 billion[1] Divided between several projects, to open between 2024 and 2041
Vancouver B.C.–Seattle–Portland high-speed railway Transit Proposed $24–$42 billion[2][3] Initiative of the Pacific Coast Collaborative between state and provincial governments
State Route 520 bridge replacement and corridor program Road In progress $4.56 billion[4] New bridge opened in April 2016, rest of corridor anticipated to be complete by 2029
Alaskan Way Viaduct replacement tunnel Road tunnel Completed in 2019 $4.25 billion (2009 est.)[5]
Amazon headquarters, Seattle Office buildings In progress $4 billion[6]
East Link Extension Transit line In progress $3.7 billion[7] Scheduled to open in 2023
Lynnwood Link Extension Transit line In progress $2.9 billion[8] Scheduled to open in 2024
Interstate 405 (Eastside) improvements Road In progress More than $2.8 billion[9] 2003 Nickel and 2005 Transportation Partnership Account: $1.5 billion; 2015 Connecting Washington package: $1.3 billion
Central Link, Seattle and Tukwila Transit line Completed in 2009 $2.44 billion[10]
Spring District, Bellevue Urban development In progress $2.3 billion[11] Scheduled to open in phases from 2017 to 2026
Puget Sound Gateway (SR 167 and SR 509) Road In progress $1.989 billion[12]
Northgate Link tunnel Transit tunnel Completed in 2021 $1.9 billion[13]
Brightwater Tunnel Sanitation infrastructure Completed in 2011 $1.8 billion[14] First billion-dollar tunnel in Seattle
University Link tunnel Transit tunnel Completed in 2012 $1.7 billion[15] Completed $200 million under budget. Central Link light rail service began in 2016.
Interstate 5 HOV lanes in Tacoma and Fife Road expansion In progress $1.6 billion[16] Scheduled to be complete in 2022
Yesler Terrace redevelopment Urban development In progress $1.5 billion[17] May increase to $1.7 billion
Lincoln Square expansion, Bellevue Urban development Completed in late 2017 $1.2 billion[18]
Seattle–Tacoma International Airport third runway Airport infrastructure Completed in 2008 $1.1 billion[19] Does not include $200 million in soundproofing for schools
Seattle seawall replacement Shoreline infrastructure Completed in 2017 $1.07 billion (2014 estimate)[20]
Mount Baker Tunnel Road tunnel Completed in 1986 Over $1 billion[21] Earliest billion-dollar project on this list
Point Ruston Urban development In progress $1 billion[22]
Snoqualmie Ridge Master-planned community Completed in 2018 $1 billion[23] Made suburb of Snoqualmie the fastest growing city in Washington (2010)
Hewitt Avenue Trestle replacement (U.S. Route 2, Everett) Road bridge Proposed $620 million to $2 billion[24]
Puget Sound salmon recovery–culvert replacement Stream restoration In progress $3.7 billion[25] Began in 1991, expanded by June 2018 U.S. Supreme ruling in favor of tribal fisheries rights. Projected to continue through 2030.[25]

Other Washington state megaprojects

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Notable Washington state megaprojects outside the immediate Seattle area include the following:

See also

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References

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  1. ^ Beekman, Daniel (June 23, 2016). "Sound Transit puts $54 billion light-rail plan on ballot". The Seattle Times. Retrieved October 22, 2016.
  2. ^ Penner, Derrick (March 16, 2018). "Horgan puts up $300,000 to keep concept of Vancouver-Seattle-Portland high-speed rail alive". Vancouver Sun. Retrieved March 17, 2018.
  3. ^ CH2M Hill (February 2018). "Ultra High-Speed Ground Transportation Study final report" (PDF). Washington State Department of Transportation. p. 5-12. Retrieved March 17, 2018.{{cite web}}: CS1 maint: numeric names: authors list (link)
  4. ^ "SR 520 – Budget and Performance". Washington State Department of Transportation. Retrieved April 17, 2016.
  5. ^ Lindblom, Mike; Sara Jean Green (January 13, 2009). "Gregoire announces tunnel plans; car-tab taxes might help pay for it". The Seattle Times. Archived from the original on January 15, 2009.
  6. ^ Day, Matt (January 26, 2018). "Take a look inside Amazon's Spheres as they get set to open". The Seattle Times. Retrieved February 5, 2018.
  7. ^ Lindblom, Mike (March 23, 2017). "Price tag zooms up for light rail across I-90 bridge: $225 million more needed". The Seattle Times. Retrieved February 5, 2018.
  8. ^ Lindblom, Mike (August 24, 2017). "Sound Transit's Lynnwood extension running $500M over budget". The Seattle Times. Retrieved February 5, 2018.
  9. ^ "I-405 Corridor Program". WSDOT. Retrieved February 5, 2018.
  10. ^ Lindblom, Mike (June 24, 2011). "Light-rail contract dispute is resolved". The Seattle Times. p. B1. Retrieved October 3, 2019.
  11. ^ Crowe, Melissa (May 6, 2016). "These are the 25-largest construction projects in the Puget Sound region". Puget Sound Business Journal. Retrieved November 30, 2016.
  12. ^ "Puget Sound Gateway Program: Funding and Phasing Subcommittee Meeting Summary" (PDF). Washington State Department of Transportation. October 4, 2017. Retrieved February 5, 2018.
  13. ^ Lindblom, Mike (August 17, 2016). "Underground sneak peek: Northgate-UW tunnel dig almost finished". The Seattle Times. Retrieved February 5, 2018.
  14. ^ Denise Whitaker (September 22, 2011). "Brightwater treatment plant set to open Saturday". Archived from the original on December 29, 2011.
  15. ^ Daniels, Chris; Green, Josh; Courtney, Ricky (March 19, 2016). "University Link light rail opens". KING-TV. Retrieved March 20, 2016.
  16. ^ "Tacoma/Pierce County HOV Program Annual Report" (PDF). Washington State Department of Transportation. August 2017. Retrieved February 5, 2018.
  17. ^ Beekman, Daniel (July 11, 2016). "Yesler Terrace transition: Many families leave area". The Seattle Times. Retrieved February 5, 2018.
  18. ^ Patti Payne (December 21, 2016). "Kemper Freeman: Lincoln Square expansion readies for 2017 rollout with new corporate tenants, restaurants". Puget Sound Business Journal.
  19. ^ Walt Crowley with research by Daryl McClary and Paula Becker (June 21, 2003), "Sea-Tac International Airport: Third Runway Project", HistoryLink, Seattle: History Ink
  20. ^ Daniel Beekman (September 29, 2014). "With costs up, mayor wants to roll back Seattle waterfront plan". The Seattle Times. Retrieved February 5, 2018.
  21. ^ Holloway, Lee J; Kjerbol, Georg (1987). Kaplan, Elizabeth W. (ed.). "Completion of World's Largest Soft-Ground Tunnel Bore" (PDF). Transportation Research Record. 1150. US National Research Council Transportation Research Board: 1–10. ISSN 0361-1981.
  22. ^ Gillie, John (August 15, 2014). "Point Ruston development files claims totaling more than $150 million against Ruston". The News Tribune. Tacoma, Washington. Retrieved February 5, 2018.
  23. ^ Ellis E. Conklin (April 21, 2015). "How the Tech Sector's Moneyed Masses Reshaped a Historic Logging Village". Seattle Weekly.
  24. ^ John H. White, NWR Assistant Regional Administrator (January 18, 2018). "US 2 westbound trestle funding finance study" (PDF). Washington State Transportation Commission.
  25. ^ a b Aaron Kunkler (July 13, 2018), "Fish culverts ruling will increase price tag for the state: The state will be on the line for $3.7 billion for fish culvert replacements.", Kirkland Reporter
  26. ^ William F. Hamel (March 22, 2017). "Hanford Waste Treatment and Immobilization Plant – Rebaseline and Contract Modification Proposal Process / 2017 Project Management Workshop" (PDF). United States Department of Energy Office of River Protection. Retrieved February 5, 2018.
  27. ^ a b Lynne Brougher (March 29, 2017). "Grand Coulee FAQ". U.S. Bureau of Reclamation Public Affairs. Retrieved February 5, 2018.
  28. ^ "US 395 - North Spokane Corridor: Annual Mega-Project Report" (PDF). Washington State Department of Transportation. September 2015. Retrieved February 5, 2018.
  29. ^ Washington's Largest Wind-Power Site Begins Generating Electricity, Puget Sound Energy, February 29, 2012
  30. ^ "PGE completes Tucannon River Wind Farm", Power Engineering, December 16, 2014
  31. ^ Prager, Mikle (April 17, 2017). "Construction again slowing traffic over Cascades on I-90". The Spokesman-Review. Retrieved February 5, 2018.
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