1. In the event that any agency of the government of the United States shall be willing to perform, direct or finance any work for the drainage and reclamation of any swamp, bog, pond, meadow or other low or wet lands in the state in such manner that the greater part of the cost of such work shall be paid by such government, the department shall have power to form a drainage improvement district including the lands so to be drained and improved by following the procedure set forth in sections 15-1963 to 15-1967 inclusive, hereinafter referred to as the federal aid sections, in lieu of the procedure specified in the preceding sections of title 19 of this article.

2. It is the intent of these federal aid sections to facilitate the carrying out of such projects by permitting changes in the normal sequence of doing the various acts specified in the preceding sections, but, except as specifically authorized, not to permit changes in the manner of doing each act or in the conditions on which such act is based.