Washington Park Reservoirs Improvement Project

Project

2015 - 2025

The Portland Water Bureau is replacing reservoirs that have served the city since 1894 with a new 12.4-million gallon, seismically reinforced underground reservoir.

Featured content

An artist rendering highlights the redesigned Reservoir 4, with a riparian meadow in the foreground and the Vista Bridge and Downtown Portland in the background.

Washington Park Reservoirs project overview

This image shows an artist's rendering of what the reservoir site will look like after construction is finished, with reflecting pools, public walkways and lush vegetation. Text reads, "We're letting gravity do its thing. The soil needs to settle to ensure this project is successful. The next phase of work will begin late 2023. Additional text includes the project website, a description of the project, partner logos and accessibility statement.

Washington Park Reservoirs construction updates

The Hypochlorite Building sits surrounded by construction equipment and supplies at Washington Park. It is made of cinder blocks and has a metal roof.

Hypochlorite Building Upgrade

Contact

Water Construction Project Outreach

hellowater@portlandoregon.gov

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Workers connect a fire hydrant to the water system.

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Concrete dam with lake behind it and surrounded by forest with fall colors on the trees

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