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The City of Portland, Oregon

Portland Water Bureau

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You’re Invited to Take a Virtual Tour of the Washington Park Reservoir Improvement Project

Washington Park Virtual Tour

The eight-acre Washington Park Reservoir Improvement construction site is crawling with equipment and crews. Started in 2016, the project is part of an eight-year capital investment program to build an underground seismically-resilient reservoir and other park improvements. When complete, the new serve will serve more than 360,000 people.

The sheer scale of the project is impressive.

3,000 truckloads of concrete will be used to build the new underground reservoir.

7.4 million pounds of rebar will be installed.

35,000 truckloads of soil will be delivered.

Want to get an up-close look at this massive public works project?

You’re invited to take a tour! All you need is a computer with an internet connection.

Take the Washington Park Reservoir Virtual Tour

The new online tour features videos and photos with a birds-eye view of the park and planned improvements. Plus, you can view historical photos and time-lapse footage of the construction in action.

Ready to get started? Follow the button below to start the tour.

Start the Tour

Want an in-person tour?

Want to visit the project in person? This is your opportunity to learn about construction methods, future activities, schedule, and much more. Tours will be led by the project manager and principal engineer. 

Who can attend: Adults and children over 10 years of age are welcome to register. All attendees should be prepared to navigate stairs, elevation changes, rough and uneven surfaces, and walk and stand for more than an hour. 

Tour information: Tours will be conducted Saturday, July 21, 9:00 a.m. – 10:00 a.m. and 10:30 a.m. – 11:30 a.m. There is room for 20 people per tour. Each person must register separately to attend a tour. Slots will fill quickly, so register now!

    9:00 a.m. – 10:00 a.m. register at

  10:30 a.m. – 11:30 a.m. register at  

Come prepared for the day. Be sure to wear closed-toed boots or sturdy shoes and weather appropriate clothing. Safety vests and hardhats will be provided.

About this Project

The Washington Park Reservoir Improvement Project is building a new 12.4-million gallon, seismically reinforced below ground reservoir within the footprint of Reservoir 3. When the reservoir is completed in 2020, it 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.

The new reservoir has been engineered to withstand ongoing landside encroachment and potentially catastrophic effects of a major earthquake. This will help ensure that the City’s drinking water infrastructure will be better prepared to meet the needs of Portlanders for generations to come.

Learn more about this project on the Washington Park Reservoir Improvement Project website.