Roza Dam (National ID # WA00275) is a diversion dam on the Yakima River, about north of Yakima, just west of SR 821. This gravity dam was built in 1939, is long at the crest and high, and impounds approximately of water. The dam also has 12.9 MW power production capacity, online as of 1956. There is also an adult fish ladder that collects fish in a trap, where they are counted and then released above the dam. A portion of wild fish are collected weekly to use as broodstock for the Cle Elum Supplementation and Research Facility (CESRF).