Construction - Brightwater Treatment System

Brightwater Project - Site and construction activities

Construction will take place at five sites; the treatment plant site, and four portals in Bothell, Shoreline, Kenmore, and at Point Wells. Construction began in the late 2005 and is scheduled to be completed in 2011. The following links provide details on activities at these sites. You can also learn about the construction contracts for this project

Treatment Plant Construction

• Treatment plant site 

Conveyance System Construction

This includes the pipes and facilities that bring wastewater to and from the plant and a marine outfall where treated wastewater is discharged to Puget Sound. To limit disruptions, the system is being built almost entirely below ground in tunnels 40 to 400 feet deep. There are five shafts, called portals, where workers, equipment and materials enter and exit the tunnels during construction.

• North Creek portal in Bothell
• North Kenmore portal in Kenmore
• Ballinger Way portal in Shoreline
• Point Wells portal and marine outfall north of Richmond Beach

Brightwater Reclaimed Water - south section construction

This project will extend from the North Creek Pump Station in Bothell to the Sammamish Valley near the Willows Run Golf Course. This portion of the project will convert an existing 4.5 mile wastewater pipe to carry reclaimed water to the Sammamish Valley.

• Reclaimed Water system construction