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.

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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 Reservoir project overview

Washington Park Reservoir construction crews working on the cascading water feature of the reflecting pool. Taken June 2024.

Washington Park Reservoir 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

waterprojects@portlandoregon.gov

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Portland Water Bureau

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Workers connect a fire hydrant to the water system.

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