Guadalupe Reservoir, located in San Jose, California, is a key water supply structure managed by a public utility. Built in 1935, this earth dam stands at a height of 142 feet and has a storage capacity of 3,460 acre-feet. With a primary purpose of water supply for irrigation and other uses, Guadalupe Reservoir plays a crucial role in meeting the water needs of the surrounding area.

The dam, situated on Guadalupe Creek, is regulated by the California Department of Water Resources, ensuring that it meets safety standards and is regularly inspected. Despite being categorized as having a high hazard potential, the dam's condition assessment in 2017 revealed it to be in fair condition. Its last inspection in December 2020 indicated a satisfactory state, with regular maintenance and adherence to safety protocols contributing to its reliability in safeguarding the water resources of Santa Clara County.

As a vital infrastructure for water management in the region, Guadalupe Reservoir highlights the intersection of water resource management and climate resilience. With its strategic location and role in providing water supply, the dam serves as a critical asset in addressing the challenges of water security in the face of changing climate conditions, reflecting the ongoing efforts to ensure the sustainable use of water resources in California.