 The current concrete-arch structure was completed in 1967, with a height of 205 feet, and a length at its crest of 573 feet.The reservoir is also contained by a secondary earthen dike (National ID # MT00580) with a height of 53 feet and a length of 457 feet, also completed in 1967.The dams and reservoir are owned and operated by the local Pondera Canal & Reservoir Company.