The directors may manage, as agents of the United States or any of its agencies, or of this state or any of its agencies, any project or program consistent with Sections 9001 and 9151, within or adjacent to the district; and may act as agent for the United States, or any of its agencies, or for this state or any of its agencies, in connection with the acquisition, construction, operation, or administration of any project or program consistent with Sections 9001 and 9151 within or adjacent to the district.