Tehaleh Water Storage Tank

Pinnacle Ridge Reservoir

Construction is underway for a new Tacoma Water storage tank and pump station on a two-acre parcel of land in the Pinnacle Ridge neighborhood of the Tehaleh community. This project ensures water service reliability, including adequate supply for firefighting and other emergencies. A vital component of this project is to control and maintain water pressure, enhancing the comfort of the community.

Tacoma Water determined the need for this storage tank during the planning of the Tehaleh master-planned development. Therefore, the timeline is directly tied to the community’s growth. The tank will be approximately 90 feet tall and 106 feet in diameter, with a capacity of five million gallons.

To minimize the impact on the neighborhood, the site for the tank is on existing utility-zoned property. Tehaleh developers helped select the location during the initial design of the community for its proximity and accessibility.

April 2024 Project Update

Electrical work continues for the communications building and the site overall. The tank’s exterior coating is nearing completion. Once the exterior coating is done, the wrapping and scaffolding will be removed, and the touch-ups will be completed inside. Site work is also underway for the overflow/stormwater pond. The remaining electrical equipment is scheduled to arrive at the site in May. The tank and pump station startup is estimated to be in June and July 2024.

Tehaleh 36

Tehaleh 37

Tehaleh 38


Process for design and construction:

  • Clear property and begin site work
  • Install water main
  • Construct a storage tank
  • Install pump station
  • Construct communications building
  • Complete site work
  • Testing and start-up
  • Commissioning

Project Manager: Carol Powers, PE

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