Wenas Dam, located in Selah, Washington, along Wenas Creek, is a rockfill dam primarily used for recreation and irrigation purposes. Built in 1911 by Gray and Osborne, this dam stands at a hydraulic height of 90 feet and a structural height of 86 feet. With a storage capacity of 5,500 acre-feet and a normal storage of 3,200 acre-feet, Wenas Dam covers a surface area of 142 acres and serves a drainage area of 114 square miles.

The dam, managed by the Washington Department of Ecology, has a high hazard potential but is deemed to be in satisfactory condition as of the last assessment in February 2018. Despite its age, Wenas Dam has been regularly inspected every 5 years to ensure its safety and functionality. The dam's maximum discharge capacity is 29,000 cubic feet per second, making it a crucial water resource for the surrounding area.

With its picturesque location and vital role in water management, Wenas Dam stands as a testament to the ingenuity of early 20th-century engineering. As a popular spot for recreational activities, the dam continues to attract water resource and climate enthusiasts who appreciate its historical significance and environmental impact on the Yakima region.