In pursuance of a plan or plans made by the bureau of reclamation of the department of the interior and for the accomplishment of the construction, operation or maintenance by the United States of irrigation, drainage or ancillary or incidental works beneficial to a contracting district, the rights, powers and privileges vested in the district and its officers and agents under the provisions of Section 308, Section 313, and Section 314 of Chapter 45, Session Laws of 1927 (being respectively Section 73-14-39, Section 73-14-44 and Section 73-14-45, New Mexico Statutes Annotated, 1978 Compilation), in addition and not to the exclusion of any rights, powers or privileges otherwise available to the United States, its officers, agents and employees, may be exercised by the engineer of said bureau of reclamation in charge of such works under like conditions as therein provided for the exercise of such powers by the district.