In connection with the convention between the United States of America and the United Mexican States for the solution of the problem of the Chamizal, signed August 29, 1963, the Secretary of State, acting through the United States Commissioner, International Boundary and Water Commission, United States and Mexico, is authorized—

a. to conduct technical and other investigations relating to: the demarcation or monumentation of the boundary between the United States and Mexico; flood control; water resources; sanitation and prevention of pollution; channel relocation, improvement, and stabilization; and other matters related to the new river channel.

b. to acquire by donation, purchase, or condemnation, all lands required—

(1) for transfer to Mexico as provided in said convention;

(2) for construction of that portion of the new river channel and the adjoining levee in the territory of the United States;

(3) for relocation of highways, roadways, railroads, telegraph, telephone, electric transmission lines, bridges, related facilities, and any publicly owned structure or facility, the relocation of which, in the judgment of the said Commissioner, is necessitated by the project.

c. For the purpose of effecting said relocations—

(1) to perform any or all work involved in said relocations;

(2) to enter into contracts with the owners of properties to be relocated whereby they undertake to acquire any or all properties needed for said relocations, or undertake to perform any or all work involved in said relocations;

(3) to convey or exchange properties acquired or improved by the United States under sections 277d–17 to 277d–25 of this title or under said convention, with or without improvements, or to grant term or perpetual easements therein or thereover.