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Portland Water Bureau

From forest to faucet, we deliver the best drinking water in the world.

GENERAL INFORMATION: 503-823-7404

1120 SW Fifth Ave, Suite 600, Portland, OR 97204

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Project Overview

The Portland Water Bureau is rebuilding the Washington Park reservoirs, a project that continues through 2024.  Washington Park reservoirs have been in service since 1894. When completed, this project will supply water to Portland’s west side and serve more than 360,000 people, including all downtown businesses and residents, 20 schools, five hospital complexes, and more than 60 parks. This system of water conveyance and storage makes Portland a livable, and thriving community, ensuring public health and economic viability.  

Project Background

This project is building a new 12.4-million gallon, seismically reinforced below ground reservoir, within the footprint of the existing Reservoir 3 (upper) with a reflection pool/water feature on top. While retaining the historic look and feel of the original reservoir, it has been engineered to withstand ongoing landside encroachment and potentially catastrophic effects of a major earthquake.

The existing Reservoir 4 (lower) is disconnected from the public drinking water system and is being developed into a lowland wildlife habitat area, bioswale, and reflecting pool.

Over all Schedule

Construction started Sept. 12, 2016 and will proceed through 2020. A pause is scheduled to occur from 2020 to 2022 to allow soils to settle. From 2022 to 2024, construction of interpretive features, including the two reflecting pools and surface features, will conclude the project. For a schedule of current activities see Developments of Note.

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