Langdon Lake Dam, located in Umatilla, Oregon, stands as a testament to early 20th-century engineering, having been completed in 1930. This private Earth dam serves primarily for recreation purposes, with a height of 12 feet and a length of 350 feet, providing a surface area of 48.4 acres and a maximum storage capacity of 253 acre-feet. The dam holds a low hazard potential and has a moderate risk assessment rating.

Managed by the Oregon Water Resources Department, Langdon Lake Dam is subject to state regulations, inspections, and enforcement, ensuring its safety and compliance with guidelines. The dam overlooks Lookingglass River and is situated in a picturesque location in Troy, offering opportunities for outdoor enthusiasts to enjoy its scenic beauty and recreational activities. Despite its age, this dam continues to play a crucial role in water resource management and climate resilience in the region.

As climate change impacts water resources, Langdon Lake Dam remains a vital infrastructure for storing and managing water in Umatilla County. With its historical significance and ongoing maintenance, the dam exemplifies the intersection of human ingenuity and environmental stewardship in safeguarding water sources for future generations. Water resource and climate enthusiasts are sure to appreciate the role of Langdon Lake Dam in sustaining the delicate balance of nature and human needs in the face of evolving climatic challenges.