Olivenhain Dam and Reservoir, located in Olivenhain, California, is a critical water resource infrastructure managed by the local government. Completed in 2003, this Roller-Compacted Concrete dam stands at a height of 309 feet and has a storage capacity of 24,900 acre-feet. The primary purpose of the dam is to supply water for irrigation and domestic use, serving as a vital asset in ensuring water security in the region.

The dam's location on the Tr Escondido Creek in San Diego County underscores its importance in regulating water flow and managing water resources in the area. With state regulatory oversight from the Department of Water Resources, Safety of Dams division, Olivenhain Dam is subject to regular inspections to ensure its structural integrity and compliance with safety standards. Despite being classified as having a high hazard potential, the dam's condition assessment in 2017 deemed it to be in satisfactory condition, highlighting the effectiveness of maintenance and monitoring efforts.

In the event of emergencies, the dam is equipped with an Emergency Action Plan (EAP) preparedness protocol, although details on the plan's specifics and adherence to guidelines are not currently available. With its strategic location, impressive storage capacity, and crucial role in water supply, Olivenhain Dam and Reservoir serves as a key component in the region's water management infrastructure, contributing to water sustainability and climate resilience efforts in the area.