San Diego County Water Authority
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San Diego County Water Authority

Project Description
Photographic Tour of the Olivenhain Dam and Reservoir
Making History... Initial Fill
Community Information Updates
Community Meeting Summaries
Contact Us

Contracting Opportunities

Project Description

The Olivenhain Dam and Reservoir are important investments for the future reliability of San Diego County’s water supply. Construction on the dam began in August 2000 and the first water flowed into the reservoir in August 2003. The Olivenhain Reservoir has a storage capacity of 24,000 acre-feet of water – enough water for a year for 50,000 families of four. Of the available water supply, a small amount is dedicated to Olivenhain Municipal Water District’s operational use, and the remaining water will be available for emergency use throughout the county. This investment was financed by a unique, cooperative effort between the Water Authority and the Olivenhain Municipal Water District.

Fact Sheet

Photographic Tour of the Olivenhain Dam and Reservoir


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Making History... Initial Fill

History was made on Aug. 6, 2003, as the first water flowed from the San Diego County Water Authority's Second Aqueduct into the Olivenhain Reservoir.

Community Information Updates

Community Meeting Summaries

Contact Us

For more information about the San Diego County Water Authority’s Emergency Storage Project or the Olivenhain Dam and Reservoir, please call toll free (877) 426-2010 or email espinfo@sdcwa.org. A representative from the project team will return your call within one business day.