Manson Unit and Kennewick Extension, Washington : hearings before the United States Senate Committee on Interior and Insular Affairs, Subcommittee on Irrigation and Reclamation, Eighty-Ninth Congress, first session, on Feb. 4, 1965.

Considers. S. 490, to authorize Interior Dept to construct and operate Manson Unit, Chelan Division, of the Chief Joseph Dam wildlife and irrigation project in Washington. S. 794, to authorize Interior Dept to construct and maintain Kennewick Extension of Yakima water supply project in Washington.