Bean Hollow #3, also known as De Los Frijoles Reservoir, is a privately owned water storage facility located in San Mateo County, California. Built in 1939, this earth dam stands at a height of 40 feet and has a storage capacity of 461 acre-feet. The primary purpose of this dam is to supply water for irrigation and domestic use, making it an essential resource for the surrounding area.

Managed by the California Department of Water Resources, Bean Hollow #3 is a state-regulated and inspected structure, ensuring its safety and functionality for the community. Despite its low hazard potential and satisfactory condition assessment, regular inspections are conducted to monitor its performance and address any necessary maintenance or improvements. Additionally, the dam is located along the Ar De Los Frijoles stream, providing vital water resources for the region.

Climate and water resource enthusiasts will appreciate the historical significance and practical importance of Bean Hollow #3 in sustaining water supply for agricultural and residential needs. With its strategic location near the Pacific Ocean and efficient design, this reservoir plays a crucial role in water management and conservation efforts in the area. As a key component of the local infrastructure, Bean Hollow #3 serves as a reliable source of water security and resilience against the challenges of climate change and water scarcity.