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Portland Water Bureau

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NW Portland Reservoir & Pump Station Project Update

By Lindsay Wochnick

Aerial View of Forest Park Low Reservoir & Pump Station (May 2014) 
Aerial View of Forest Park Low Reservoir & Pump Station (May 2014)

The Portland Water Bureau’s Forest Park Low Reservoir construction project to build a 1.3-million gallon reinforced-concrete underground drinking water reservoir and a 1,408 square-foot pump station in northwest Portland is close to completion. 

Crews are backfilling the 73-foot in diameter reservoir ensuring that if settling does occur, the foundation soil grade does not shift any locations. Within a month’s time, the reservoir will disappear from sight, being covered and compacted with layers of soil and eventually native grasses. 

Concurrent with the backfill process work, the reservoir is in the process of being filled with water and will soon be connected to the water system.  The reservoir will is slated to serve the current and future needs of the residents living at higher elevations in the area and improve water capacity for emergency fire protection.

Forest Park Low Reservoir & Pump Station 
Forest Park Low Reservoir & Pump Station (May 2014)

Pump Station
The build of the adjacent pump station is almost finished as well.  The structure has a green metal roof and cinderblock walls and foundation, making the station durable, energy efficient and insulated against cold and heat.

Road Repave & Restoration
In May 2014, the Water Bureau excavated a space under the westbound lane of NW Skyline Boulevard to connect a pipeline from the reservoir to the water system.  In mid-June, crews will repave and restore that patch of the city street.

For additional project information, please visit the project webpage at

Lindsay Wochnick
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