Cle Elum Dike 1, located in Cle Elum, Washington, is a federally-owned structure designed by the Department of the Interior's Water and Power Resources Service. Completed in 1932, the earth dam stands at a height of 13 feet and stretches 158 feet in length along the Cle Elum River. Owned and funded by the Bureau of Reclamation, the dike serves a vital purpose in controlling water flow and providing a storage capacity of 437,000 acre-feet.

With a low hazard potential, Cle Elum Dike 1 has not undergone a recent condition assessment, but it is inspected annually by the Bureau of Reclamation. The associated structures include WA00274S001, WA00274S003, and WA00274S004. While the dam does not have a spillway or outlet gates, it plays a crucial role in managing water resources and mitigating flood risks in the Kittitas County area. In the event of an emergency, an Emergency Action Plan (EAP) is in place, with the last revision made in June 2020.

Overall, Cle Elum Dike 1 stands as a testament to effective water resource management and infrastructure development. As a key component of the region's flood control system, the dam plays a vital role in safeguarding communities and ecosystems along the Cle Elum River. With its historical significance and ongoing maintenance by the Bureau of Reclamation, the dike continues to be a critical asset in ensuring water security and climate resilience in the area.