Austrian, also known as Elsman Lake, is a public utility water supply dam located in Los Gatos, California. Completed in 1950, this earth dam stands at a height of 185 feet and has a hydraulic height of 170 feet. The dam has a storage capacity of 6200 acre-feet and serves the primary purpose of providing water supply to the surrounding area.

Managed by the California Department of Water Resources (DWR) and regulated by the Safety of Dams, Austrian is situated on the Los Gatos Creek within the Sacramento District. The dam has a high hazard potential but has been assessed to be in satisfactory condition as of September 2017. Regular inspections are conducted, with the last one taking place in September 2020, to ensure the safety and integrity of the structure.

With a drainage area of 9.8 square miles and a surface area of 96 acres, Austrian plays a crucial role in managing water resources in Santa Clara County. As climate change continues to impact water availability and quality, the proper maintenance and regulation of dams like Austrian are essential for ensuring a reliable water supply for the community.