Spencer Lake, located in Burlingame, California, is a vital water resource managed by local government authorities for flood risk reduction in the area. The earth dam, standing at a height of 87 feet and completed in 1876, serves as a protective barrier along the Tr S Francisco Bay. With a storage capacity of 73 acre-feet and covering a surface area of 4 acres, Spencer Lake plays a crucial role in managing water levels and drainage in the region.

Despite its age, Spencer Lake's dam is in satisfactory condition according to the latest assessment in September 2017. The high hazard potential of the dam necessitates regular inspections, with the last one conducted in September 2020. The dam's emergency action plan was last revised in March 2021, ensuring readiness in case of any unforeseen emergencies. With its strategic location and historical significance in flood control, Spencer Lake remains a key feature in California's water resource infrastructure.

Water resource and climate enthusiasts can appreciate Spencer Lake not only for its engineering marvel as an earth dam but also for its ongoing role in safeguarding the surrounding area from flood risks. The presence of state regulatory agencies overseeing its operation, inspection, and enforcement further highlights the importance of Spencer Lake in maintaining water safety and security in San Mateo County. As a part of the larger network managed by local government authorities, Spencer Lake stands as a testament to the resilience and adaptability of water resource management in the face of changing climatic conditions.