Water needs in the region are projected to double by 2050 with new supplies needed as early as 2026. TVWD and the City of Hillsboro are partnering to develop the mid-Willamette River as an additional supply of water, other water providers in the region are also considering joining the Program.


Tualatin Valley Water District, Hillsboro, Beaverton, Tualatin and Tigard, Sherwood and Wilsonville are considering partnership options for use of this important water resource.

Construction Coordination

Washington County is working closely with Program staff to coordinate roadway improvements and the installation of water infrastructure—a cost savings for both organizations’ customers.

Our Reliable Water

Supply Planning Partners and Stakeholders

  • Tualatin Valley Water District
  • Hillsboro
  • Beaverton
  • Tualatin
  • Tigard
  • Sherwood
  • Wilsonville
  • Washington County

Program Timeline

Developing the new Willamette water source will take over a decade.

Willamette Water Supply Program

Willamette Water Supply Program