Tieton Dam

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Tieton Dam
Tieton Dam, 2013.jpg
Location Yakima County, Washington, USA
Coordinates 46°39′23″N 121°7′46″W / 46.65639°N 121.12944°W / 46.65639; -121.12944Coordinates: 46°39′23″N 121°7′46″W / 46.65639°N 121.12944°W / 46.65639; -121.12944[1]
Opening date 1925[2]
Operator(s) United States Bureau of Reclamation[2]
Dam and spillways
Impounds Tieton River
Height 319 feet (97 m)[2]
Length 920 feet (280 m)[2]
Creates Rimrock Lake
Total capacity 203,600 acre feet (0.251 km3)[2]
Catchment area 184 square miles (477 km2)[2]
Surface area 2,674 acres (10.8 km2)[2]

Tieton Dam is an earth and concrete type dam on the Tieton River, in the U.S. state of Washington. It is located in Yakima County. Its reservoir is called Rimrock Lake. Its purpose is to provide water for irrigation agriculture.[2]