Updated June 1, 2026

Thank you to everyone who shared their time and ideas about the design of the additional open space around the new reservoir. Thanks to your input, the project design consultant completed the preferred schematic design and a construction cost estimate in May 2024. Many of the features identified during public engagement are reflected in the design and will help make the fully reconstructed park a vibrant community space.

The preferred schematic design includes an expanded P‑Patch, two outdoor plazas, two play areas for kids, an information kiosk, a picnic shelter, an outdoor classroom area, a food forest, a dog off‑leash area, an elevated boardwalk, a restroom, and spaces for outdoor games. The design also incorporates several land‑art opportunities, with ARTS serving as the arts planner for this project.

However, the City’s available funding will only support a small portion of the overall construction cost. SPR is reviewing the design and cost estimate to understand which elements could be built first and how the project may need to be phased over time.

Check out the Preferred Schematic Design here.

Where we're at currently:

SPR anticipates hiring a design consultant in late 2026 or early 2027 to review the schematic design and develop detailed construction drawings and permitting documents. Construction of the open‑space improvements can begin only after SPU has completed the new reservoir. To learn more about the new reservoir's construction schedule, please visit SPU's project page.

Please note: The Bitter Lake P-Patch will remain open to gardeners throughout the construction of the new reservoir and park.

This is an interdepartmental effort to bring more open space, public art, and a new reservoir to northwest Seattle.

Seattle Public Utilities (SPU) is replacing the existing reservoir, which is at the end of its service life, with a new partially buried drinking‑water reservoir. Once SPU completes construction, more than six acres of new park space will become available for public use.

SPR is leading the design of the park and open space in coordination with SPU, the Office of Arts & Culture (ARTS), and the Department of Neighborhoods. The project will build on the existing park and introduce new recreation amenities, public art, and a potential expansion of the P‑Patch.