Rock Creek WRRF Gravity Belt Thickener Drain Piping Replacement

Clean Water Services is requesting sealed bids for gravity belt thickener drain piping replacement at Rock Creek Water Resource Recovery Facility in Hillsboro, Oregon, with bids due September 8, 2026 at 2:00 p.m. local time, and a mandatory prebid conference and site visit on August 25, 2026 at 9:00 a.m.

Bidders must be registered with the Oregon Construction Contractors Board prior to submission and must comply with Oregon public works requirements under ORS 279C.800 to 279C.870, including amendments made by House Bill 2688 effective July 1, 2026. This is a public works project.

The scope includes furnishing all labor, materials, and equipment to install temporary bypass piping from existing gravity belt thickener drains to the backwash pump suction header; demolish and remove existing 10- to 14-inch welded steel filtrate/emergency overflow drain pipes connecting the WASSTRIPATE wet well and GBTs to the Solids Process Recycling wet well; remove drain components within the SPR wet well; video inspect approximately 15 linear feet of remaining 14-inch filtrate/emergency overflow pipe; and install a new 12-inch polyvinyl chloride filtrate/emergency overflow pipe to reconnect the WASSTRIPATE wet well, GBT drains, and floor drains to the SPR wet well. Work will be performed on the Ground Level and Lower Level Pipe Tunnel of the Thickening and Dewatering Buildings.

The estimated construction cost is $300,000. Sealed bids must be submitted electronically via Equity Hubs' Bid Locker at https://bidlocker.us/details/6000. Bid security is required, with the original delivered to Steve Waldron at the Owner's Office or Durham Treatment Plant Services Building within five business days after the bid deadline. First-Tier Subcontractor Disclosure Forms are due by 4:00 p.m. on September 8, 2026. Public bid opening will occur at 2:00 p.m. the same day via telephone conference at 503.681.4499. Technical and administrative inquiries should be directed to Steve Waldron at 503.547.8134 or waldrons@cleanwaterservices.org. Bidders are responsible for checking the Bid Locker website daily for updates and amendments.