This Act may be cited as the Defending our Dams Act.

(a) Prohibition on use of Federal funds No Federal funds may be used to allow, lead to, or study the breach or functional alteration of, including study of power, flood control, or navigation replacement of, or provide dam removal technical assistance for, the Lower Snake River dams. (b) Prohibition on spillage operations (1) In general The Secretary of the Army, acting through the Chief of Engineers, may not carry out any spillage operations on any of the Lower Snake River dams unless such operations are approved by the Secretary and the Administrator of the Bonneville Power Administration. (2) Considerations In determining whether to approve spillage operations under paragraph (1), the Secretary and the Administrator shall consider all Columbia River System operations. (c) Definition In this section, the term Lower Snake River dams means the following dams in the State of Washington, authorized by section 2 of the Act of March 2, 1945 (chapter 19, 59 Stat. 21): (1) Ice Harbor Dam. (2) Lower Monumental Dam. (3) Little Goose Dam. (4) Lower Granite Dam.