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King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

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Staff Contacts
Puget Sound shoreline next to the West Point Treatment Plant, Seattle

Capital improvement projects

Learn more about system and project phases of King County projects

Secant pile driving, Ballard Siphon Replacement Project
Secant pile driving, January 2012. Ballard Siphon replacement project.

In 2013, King County’s clean-water utility is budgeting $195.7 million in capital projects to expand the wastewater system, modernize existing facilities, and ensure continued compliance with environmental laws. Specific projects are included in the list below.

King County is carrying out these projects as part of the Regional Wastewater Services Plan, a 30-year comprehensive plan adopted by the King County Council in 1999 to ensure the regional sewer system keeps pace with growth and continues meeting regulatory requirements.

Projects by area Learn more
North King County/South Snohomish
Seattle
East King County
South King County
Regionwide		 Project phases and public involvement 
Planning for growth
Being a good neighbor during construction
Enhancing the environment with our facilities
Recently completed projects

News Releases

Resources

Related information

Other King County construction projects