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Natural Resources and Parks

King County, Washington

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Oct. 9, 2012

Brightwater earns ‘Best Project’ honors in regional engineering competition

Selection based on innovation, craftsmanship, site safety; project advances to national competition in civil works/infrastructure category

An independent jury of engineering professionals selected King County’s Brightwater Project as one of the Northwest’s best achievements in design and construction for 2012.

“The award represents a tremendous honor for the talented team of County employees, contractors and skilled tradespeople who contributed to Brightwater’s project success,” said King County Executive Dow Constantine.   

In a regional competition sponsored by Engineering News Record magazine, King County and its contractors earned a “Best Project” award in the Civil Works/Infrastructure category for the successful completion of the Brightwater Treatment Plant north of Woodinville. The jury selection focused on projects that overcame significant challenges; adopted innovative approaches; executed exceptional design and craftsmanship; and maintained safe sites.

Brightwater will compete with other projects at the national level this fall.

CH2MHill led the treatment plant pre-design with sub-consultants Brown & Caldwell, Mithun Architects, Hargreaves and Associates and many others.

Hoffman Construction served as the General Contractor/Construction Manager and Kiewit was later brought in to build the solids facility under a traditional design-bid-build contract.

One of Brightwater’s most significant features is the advanced treatment technology that will produce an effluent 70 percent cleaner than conventional wastewater technologies. The treatment facilities were also built to meet or exceed some of the region’s most stringent seismic safety codes.

Brightwater’s 114-acre plant campus features a number of amenities, including a LEED® Platinum-certified education and community center, 70 acres of open space and restored wildlife habitat, and three miles of publicly accessible trails.

Construction on the Brightwater project began in 2006. Designed to treat 36 million gallons of wastewater a day, the plant has been operating since September 2011.

To learn more about the Brightwater project, please visit

Residents enjoy clean water and a healthy environment thanks to King County's wastewater treatment program. The county’s Wastewater Treatment Division protects public health and water quality by serving 17 cities, 17 local sewer districts and more than 1.5 million residents in King, Snohomish and Pierce counties. The regional clean-water agency has been preventing water pollution for nearly 50 years.

Note to editors and reporters: Visit the WTD Newsroom, a portal to information for the news media about the Wastewater Treatment Division, King County Department of Natural Resources and Parks: