Cornelius Pass Road Pipeline Project

The Cornelius Pass Road Pipeline Project (PLW_2.0) is a 3.3-mile section of pipeline between Frances Street and the Tualatin Valley Water District connection point just south of Highway 26. About 900 feet of this section of the pipeline will cross the northeast corner of Orenco Woods Nature Park (OWNP). Water pipeline construction is anticipated to begin in late 2021 and continue through late 2024.

WWSS Project Pivots in Response to COVID-19 (May 2021)
The partners are dedicated to managing project costs to build this additional water supply source. In response to utility revenue losses experienced by each of the partners due to the prolonged COVID Pandemic, construction of several WWSS projects will be phased in order to defer a portion of the WWSS construction costs.This phased approach will not delay delivery of WWSS water to TVWD, Hillsboro, and Beaverton customers by July 2026. 

This cost management approach not only stabilizes expenditures, but also reduces anticipated near-term water rate increases for each of the three partners’ ratepayers.

Partners continue to be committed to completing the WWSS on time and delivering this additional seismically resilient water supply to Washington County customers in 2026.

Old Rail Corridor Section


Old Rail Corridor Public Meeting May 26, 2020

Our Reliable Water

Program Timeline

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

Willamette Water Supply Program

Willamette Water Supply Program