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The City of Portland, Oregon

Portland Water Bureau

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

Customer Service: 503-823-7770


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What’s Going On at Washington Park?

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In order to comply with federal and state mandates and ensure a healthy, resilient, and secure water system, the Portland Water Bureau and Oregon general contractor Hoffman Construction Company are moving forward with an eight-year capital improvement project to update the Washington Park Reservoir site at 2403 SW Jefferson Street.

Engineered for Seismic Resiliency

Beginning drain rock filling of Reservoir 4Washington Park’s open-air reservoirs were built over 120 years ago and the complex gravity-fed drinking water system remains a valuable and innovative resource for the City.

The Washington Park Reservoir Improvement Project entails building a new, seismically reinforced below-ground reservoir. The reservoir will not only maintain the historic gravity-fed drinking water function provided by the original reservoirs, but will be engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake.

Historic Preservation

 Shoring wall construction along Sacajawea BlvdAside from protecting our precious resource, this project will allow park visitors to enjoy many of the preserved historic elements as well as some exciting new additions. A reflecting pool will sit atop Reservoir 3 and many of the original structures will be maintained. Reservoir 4 will be disconnected from the drinking water system, and another reflecting pool along with a wet prairie habitat area will be constructed in the basin.

When complete and online, the new underground reservoir will supply water to Portland’s west side, including all downtown businesses and residents, the Oregon Zoo, more than 60 parks, six hospitals, and 20 Portland public schools.

Currently the construction team is working to fill Reservoir 4 to support the future habitat area and reflecting pool.

Road Closures

Sacajawea Boulevard is temporarily closed while two shoring walls are built along it. These will provide construction access while the new reservoir is constructed. A temporary access ramp into Reservoir 3 was constructed for equipment and material access into the reservoir. Ongoing work includes erosion control at the construction site, installation of a receiving pit and boring 48” diameter casings under the Reservoir 3 dam, and removal of the wetwell in Gatehouse 4.

Learn more about road closures and how to navigate Washington Park during this improvement project.

More Information

Questions or concerns?

Visit the project website, call the hotline (503-823-7030), or email project staff at

Portland Water Bureau and Mt. Hood National Forest Bull Run Working Group Meeting

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The public is invited to attend the Portland Water Bureau and Mt. Hood National Forest Bull Run working group meeting on Wednesday, April 19 from 10 a.m to 12 p.m. at the Portland Building, 1120 Southwest 5th Ave. in Portland. The meeting will take place in the Bull Run conference room on the fifth floor. An agenda is available here.

The Portland Water Bureau and Mt. Hood National Forest meets semi-annually each year to coordinate the management of the Bull Run watershed, Portland’s primary drinking water source.

The purpose of these meetings is to review work plans, budgets, and staff assignments and communicate accomplishments and issues addressed during the course of management activities. An annual report is presented at the spring meetings.

For more information about the 20-year stewardship agreement between the Portland Water Bureau and the Mt. Hood National Forest, visit our  Protection and Stewardship page or visit

What: Portland Water Bureau and Mt. Hood National Forest Bull Run working group meeting
When: Wednesday, April 19 from 10 a.m. to 12 p.m.
Where: Portland Building (1120 Southwest 5th Ave., Portland); fifth floor conference room

Southeast Salmon Street at Southeast 31st Avenue Closed to Through Traffic This Wednesday through Thursday, April 12 through 14

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Click the image above to view the work location in Google Maps Street View.

This Wednesday and Thursday, Portland Water Bureau crews will be installing a new water main in Southeast 31st Avenue between Southeast Taylor and Southeast Salmon Streets.

During this time, the intersection of Southeast Salmon Street and Southeast 31st Avenue will be closed to through traffic this Wednesday through Friday, April 12 through 14.

Traffic Detour

Bicyclists are advised to walk their bikes on the south sidewalk around the construction site.

Watch for Construction Workers

Please use extra caution when driving, biking or walking near the intersection where work will be performed. Use these work zone safety tips when traveling near the work site to keep you, other drives, bicyclists, and our workers safe.

Attention, Teachers: There’s a Fun, New Way to Teach Your Kids About the Environment for Earth Month

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Attention, teachers: April is Earth Month. Do you know where your copy of The Lorax is?

Or maybe you’re up for something new – a fresh alternative to traditional Earth Month or Earth Day (April 22) educational opportunities?

Introducing “Water! The Musical”.

“Water! The Musical”: A Free Assembly Program

“Water! The Musical” is a free, water-themed assembly program for students in grades 3–5 presented by the Portland Water Bureau. An educational tribute to Portland’s delicious, clean drinking water, this two-actor show explores our water system’s history, how we are all connected to water, and some great ways kids and families can put eco-friendly habits to practice by using water efficiently.

The “Water! The Musical” assembly is designed for students in grades 3–5, lasts about 40 minutes, and is performed by the creative minds at the Thinking People’s Theatre and ComedySportz Portland. Best of all, it’s free to your school!

Schedule a Show

Shows are available between April 24 and May 25, but are limited and available on a first-come, first-served basis.

Book today by contacting Sadie Bowman at Thinking People’s Theatre. Email Sadie at or call 763-370-4705.

Questions? Email

Countdown to Earth Day: The Water Bureau’s Commitment to a Sustainable Future

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Earth Day is just around the corner! Occurring each year on April 22, Earth Day is a time to celebrate the natural world around us and learn how we all have a part in protecting the environment.

The Water Bureau works hard to be responsible stewards of our precious water resources. But our focus on environmental stewardship goes so much deeper than ensuring clean water and promoting conservation!

Each day this week, we’ll be posting one Earth Day fact to Facebook and Twitter that highlights the work we’ve been doing to reduce energy use, promote green services and protect fish and wildlife.

Follow us on Facebook and Twitter and learn more about our Sustainable Operations here.