Foster, located in Idyllwild, California, is a vital water supply dam on Lily Creek, completed in 1945 with a height of 38 feet and a storage capacity of 56 acre-feet. Owned and regulated by the state of California, Foster serves primarily for water supply purposes and is classified as an Earth dam with a high hazard potential. Despite its age, Foster is reported to be in satisfactory condition, last inspected in October 2019 with a regular inspection frequency of 1 year.

Managed by the Department of Water Resources and Safety of Dams, Foster plays a crucial role in maintaining the water resources in Riverside County. With a surface area of 6 acres and a drainage area of 0.85 square miles, Foster has a hydraulic height of 31 feet and a total length of 277 feet. Additionally, Foster is situated in a picturesque setting, serving as a reliable source of water for the surrounding community while also being subject to state regulation, inspection, and enforcement to ensure its safety and functionality for years to come.

In the event of an emergency, Foster's emergency action plan (EAP) status is not explicitly mentioned in the data, suggesting potential gaps in emergency preparedness measures. However, with its satisfactory condition and regular inspections, Foster remains a critical infrastructure for water supply in the region, supported by state agencies and officials. As water resources and climate enthusiasts, understanding the importance and condition of dams like Foster is essential for sustainable water management and resilience in the face of changing climate patterns.