Closed

South Treatment Plant Dissolved Air Flotation Thickener Tanks Rehabilitation

Description: King County is soliciting construction bids to rehabilitate the dissolved air flotation thickener tanks at its South Treatment Plant in Renton, Washington. The project includes demolition of existing covers and equipment, concrete tank-wall modifications, installation of new mechanisms and cover systems, testing, and commissioning while keeping only one tank out of service at a time. The estimated construction contract cost is $34.7 million, with work scheduled to begin in 2027 and substantial completion anticipated in 2030.

Buyer
King County

County · WA, US

Released
Aug 11, 2026
Closes
Aug 18, 2026(Closed)

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