Us Bonneville Power Admin Coulee Dam, WA 99116 Phone : (509) 633-0203 Us Bonneville Power Admin Business Category Regulation & Admin Of Communications Electric Gas & Other Utilities United States Government--energy Dept Of, Bonneville Power Administration, Automotive Garage Coulee Dam, WA 99116 Phone : (509) 633-0203 Business Category Government Offices-Federal Government Offices & Public Schools