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GENERAL INFORMATION: 503-823-7404
Existing Reservoir 4 (lower) will be disconnected from the public drinking water system.
A lowland wildlife habitat area, bio-swale, and reflecting pool will be constructed in the basin of existing Reservoir 4..
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The new reservoir will preserve the historic drinking water function provided by the original reservoirs and be engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake.
A new 12.4-million gallon, seismically reinforced below ground reservoir will be constructed in the same footprint of existing Reservoir 3 (upper) with a reflecting pool/water feature on top.
In order to comply with federal and state mandates, and ensure a healthy, resilient, and secure water system, the Portland Water Bureau is updating the Washington Park reservoir site.
The Water Bureau supplies drinking water to more than 950,000 people in the Portland metropolitan region. A large capacity reservoir at Washington Park is an essential part of Portland’s water system, serving areas west of the Willamette River.