Sunol Water Temple educational center remains unopened after 17 years of planning and millions spent – The Mercury News Today Us News


When the San Francisco Public Utility Commission began to plan for a Sunol Water Temple welcome center, President Barack Obama had just taken his oath of office and the cost of gas was just over $2. More than 17 years and millions of dollars later, the project remains incomplete.

“If we had a schedule, we would share it,” Tim Ramirez, division manager of natural resources and lands management at SFPUC, said of the proposed Alameda Creek Watershed Center. “The plan has gone through different iterations over the years, but I definitely think there’s the gusto. … The fact we’ve invested so many resources shows our gusto.”

Built in 1910, the Sunol Water Temple is a Beaux Arts-style pergola inspired by the Temple of Vesta in Tivoli, Italy, serving as a memorial to the confluence of the Bay Area’s major watersheds.

Underneath the temple’s Corinthian columns, three subterranean pipelines from Arroyo de la Laguna, Alameda Creek and Pleasanton supplied half of San Francisco’s water supply during the early 20th century.

When the Hetch Hetchy Aqueduct began delivering water to San Francisco in 1934, however, it replaced the Sunol Water Temple as the primary water source for San Francisco. In 1976, the American Society of Civil Engineers declared the temple as a California Historical Engineering Landmark.

An aerial view of the Sunol Water Temple in Sunol, Calif., on Thursday, Feb. 26, 2026. The San Francisco Public Utility Commission has yet to open the Alameda Creek Watershed Center more than 10 years after it was initially slated to be open. (Jane Tyska/Bay Area News Group)
An aerial view of the Sunol Water Temple in Sunol, Calif., on Thursday, Feb. 26, 2026. The San Francisco Public Utility Commission has yet to open the Alameda Creek Watershed Center more than 10 years after it was initially slated to be open. (Jane Tyska/Bay Area News Group) 

Some Sunol residents may find themselves completely unfamiliar with the temple’s place in Bay Area history because it has been largely inaccessible to the public for about a decade, said Connie DeGrange, a 45-year resident.

“People haven’t been there in 10 years. There are people who are in Sunol who have never experienced it,” DeGrange said. “There are kids who have never learned the importance of it. It’s a magnificent structure to represent a pivotal project to California, bringing water to San Francisco and the Bay Area.”


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