Located in Alturas, California, the Clarke dam serves as a crucial water supply source for irrigation and general water needs in the region. Constructed in 1939, this earth dam stands at a height of 17 feet and has a storage capacity of 70 acre-feet. Situated on the Tr Nfk Pit Rv river, the dam covers a surface area of 12 acres and drains a small 0.05 square mile watershed.

Managed by a private owner, the Clarke dam is regulated by the California Department of Water Resources (DWR) and falls under the Safety of Dams jurisdiction. With state permitting, inspection, and enforcement in place, the dam has been assessed as having a low hazard potential and satisfactory condition as of September 2017. The dam's last inspection was conducted in June 2020, with a frequency of one inspection per year to ensure its continued safety and functionality.

Overall, the Clarke dam plays a vital role in supporting the local water supply needs in Modoc County, California. With its strategic location and purposeful design, this dam stands as a testament to the importance of water resource management and climate resilience in the face of changing environmental conditions. As enthusiasts in water resources and climate, understanding the infrastructure and maintenance of dams like Clarke is essential for ensuring sustainable water management practices in the future.