The Orange County, California, Beach Erosion Control Project is authorized for state participation pursuant to Section 65.5 substantially in accordance with the plan set forth in House Document 602, 87th Congress, and authorized by the River and Harbor Act of 1962, Title I of Public Law 87-874, 76 Stat. 1173. Notwithstanding the provisions of Section 65.6, state funds appropriated for this project may be expended prior to the appropriation of construction funds for said project by the Congress. Such state participation shall be subject to appropriations applicable thereto or funds available therefor and shall not take precedence over other pending projects of higher priority.