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Lake Perris

Lake Perris is located in Riverside County between the communities of Moreno Valley and Perris. It is the southernmost State Water Project Facility and the southern terminus of the California Aqueduct. The Lake Perris State Recreation Area is one of the state’s most popular recreation destinations. Lake Perris offers water-oriented recreation facilities and activities including boating, swimming, day use, camping and fishing.

Lake Perris

Project Description

In 2005, DWR identified potential seismic safety risks in a section of the foundation of Perris Dam. To ensure maximum public safety until repairs are made, the lake level was lowered about 25 feet.

Design work, environmental documentation, and permitting has now been completed. Construction work to strengthen the foundation will begin in fall 2014 and is expected to take approximately three years.

DWR is working closely with state and federal fish and wildlife agencies to protect local wildlife and environmentally sensitive areas during the construction project, and is coordinating with State Parks on recreation impacts.


Access to the southeast side of the park will be closed beginning Wednesday, October 15, 2014. The normal construction hours for work will be Monday-Friday, 7am-5pm. Notice will be provided to interested parties of significant changes to this schedule and blasting work in the area.

Fall 2014 –   • Equipment will be brought to the site, including two field offices
• Construction will begin on a new haul road along the southeast side of the lake
• Soils testing work will begin in early 2015
• Blasting work and materials processing work will begin early 2015

Acceso al lado sureste del parque se va cerrar el miércoles, 15 de octubre de 2014. Horas normales de construcción son de lunes a viernes, 7 de la mañana a 5 de la tarde. Aviso será dado a los interesados en cambios significativos a este horario, o trabajos de voladura en el área.

Otoño de 2014 –   • Equípo sera llevado al sitío, incluyendo dos oficinas allí
• Construcción se empieza en un nuevo camino a lo largo del lado sureste del lago
• Empiezan a examinar la tierra a principios de 2015
• Se comíenza el trabajo de voladura y materiales procesadosa a principios de 2015


During the three-year construction period, the public will not have access to hiking trails, undeveloped campsites, and rock climbing on the southeast side of the lake. The road on the top of the dam will also be closed. Use of the lake for boating and fishing, and other recreational facilities including picnic areas, beaches, and campgrounds will continue to be available to the public.

If you have comments, questions, or would like to receive current updates regarding the Perris Dam Remediation Program, please contact DWR at

Lake Perris Remediation Program map

recreational impact recreational impacts public process seismic remediation process