Thompson Valley Reservoir, located in Silver Lake, Oregon, is a significant water resource managed by the local government for irrigation purposes. Built in 1922, this Earth dam stands at a height of 48 feet and has a storage capacity of 30,500 acre-feet, providing water for a drainage area of 150 square miles. With a normal storage capacity of 21,040 acre-feet, the reservoir covers a surface area of 1,900 acres and has a maximum discharge rate of 2,514 cubic feet per second.

This reservoir on Silver Creek is regulated by the Oregon Water Resources Department and undergoes regular inspections to ensure its structural integrity and safety. Classified as having a "significant" hazard potential, Thompson Valley Reservoir has not been rated for its condition assessment as of yet. The emergency action plan status and risk management measures for this dam are currently not specified, highlighting the importance of continued monitoring and maintenance to mitigate any potential risks associated with its operation.

For water resource and climate enthusiasts, Thompson Valley Reservoir offers a fascinating example of early 20th-century engineering for irrigation purposes in Oregon. Its historical significance, combined with its vital role in providing water for agricultural activities in the region, underscores the importance of sustainable water management practices in the face of changing climatic conditions. As a key component of the local water infrastructure, this reservoir serves as a reminder of the intricate relationship between human development and natural resources, urging us to prioritize conservation efforts for the future.