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Hauck Mesa Storage Reservoir

Hauck Mesa Storage Reservoir Moving to Completion

The San Diego County Water Authority Hauck Mesa Storage Reservoir project in North San Diego County reached a major milestone in late April when crews poured the concrete roof of the new prestressed concrete water tank. The major construction project, which began in March 2021, will improve drinking water supply reliability for the county.

The project began with the demolition of an abandoned steel tank, and includes construction of an isolation vault and an underground flow control facility, in addition to the new 2.1 million-gallon water tank connected to the Valley Center Pipeline. The project is expected to be completed by November 2022.

Improved flexibility with Hauck Mesa Reservoir

The new Hauck Mesa Storage Reservoir will increase operational flexibility by balancing the flow of treated water between the agency’s first and second aqueducts as well as ensure water deliveries can be maintained even if power supplies are interrupted.

The walls of the new tank are about 60 feet tall, will be stained a forest green color to blend in with the natural landscape, and are made of prestressed, or wire wrapped, concrete. Construction Manager Emma Ward-McNally said that the prestressed technology “will maintain the tank walls in permanent compression, allowing the tank to accommodate seismic events while remaining watertight.”

Next steps for the project include the wire wrapping of the water tank, applying green-tinted shotcrete to the tank walls, installation of mechanical components within the flow control facility, system commissioning, and paving of the project site and access road.

Asset management

Strategic infrastructure improvements by the Water Authority and its 24 member agencies are part of the regional effort to ensure continued delivery of water to support the region’s $240 billion economy and the quality of life for 3.3 million residents. As part of the asset management program, it is critical to actively replace and repair the Water Authority’s assets, which include pipes, valves, facilities, equipment, and other infrastructure.

The Water Authority will continue to work closely with the Valley Center community, Valley Center Municipal Water District, and nearby homeowners to minimize short-term construction impacts.

Drinking Water Reservoir

Hauck Mesa Storage Reservoir to Improve Water Reliability

The San Diego County Water Authority is gearing up to construct a 2.1 million-gallon drinking water reservoir on the Valley Center Pipeline to enhance service reliability throughout the region. The Hauck Mesa Storage Reservoir project in northern San Diego County is part of the Water Authority’s Capital Improvement Program.

Construction work is scheduled to begin in early 2021 and is estimated to be completed in the winter of 2022. The project includes demolition of an abandoned steel tank, and construction of a new 2.1 million-gallon concrete reservoir, isolation vault, and underground flow control facility, as well as other site improvements.

New infrastructure development by the Water Authority and its 24 member agencies ensures the delivery of water to support the region’s $245 billion economy and the quality of life for 3.3 million residents.

Hauck Mesa-Storage Reservoir-infrastructure

The Hauck Mesa Storage Reservoir will temporarily store drinking water pumped from the Claude “Bud” Lewis Carlsbad Desalination Plant and the Twin Oaks Valley Water Treatment Plant. Graphic: San Diego County Water Authority

Hauck Mesa Storage Reservoir

The new storage reservoir will improve water deliveries by temporarily storing drinking water pumped to the Valley Center Municipal Water District, Vallecitos Water District, Vista Irrigation District, and the Rincon del Diablo Municipal Water District from the Claude “Bud” Lewis Carlsbad Desalination Plant and the Twin Oaks Valley Water Treatment Plant. The stored water will safeguard water deliveries from unanticipated water interruptions or pump station outages.

“This project is just one of the infrastructure improvement projects the Water Authority is undertaking to fulfill the agency’s mission to provide a safe and reliable water supply for today and the future,” said Kirk Whitaker, the Water Authority’s project manager.

The Water Authority will work closely with the Valley Center community, Valley Center Municipal Water District, and homeowners to minimize short term construction impacts in the area to ensure safe, uninterrupted water service. For more information on the Hauck Mesa Storage Reservoir project, go to the Water Authority’s Future Projects webpage.