; (2) in subsection (b)— (A) in the heading by striking road improvements and inserting navigable roads ; and (B) by adding at the end the following new paragraph: (5) Additional navigable roads along the southwest border (A) Navigable road defined In this subsection, the term navigable road means a contiguous, navigable road. (B) Navigable roads In carrying out subsection (a), the Secretary of Homeland Security shall construct a navigable road along not less than 700 miles of the southwest border where most practical and effective to gain operational control of the southwest border. (C) Priority areas In carrying out this paragraph, the Secretary of Homeland Security shall— (i) identify the 700 miles, or other mileage determined by the Secretary, along the southwest border where a navigable road would be most practical and effective in deterring smugglers and aliens attempting to gain illegal entry into the United States; and (ii) not later than December 31, 2020, complete construction of a navigable road along the miles identified under clause (i). (D) Consultation (i) In general In carrying out this paragraph, the Secretary of Homeland Security shall consult with the Secretary of the Interior, the Secretary of Agriculture, States, local governments, Indian Tribes, and property owners in the United States to minimize the impact on the environment, culture, commerce, and quality of life for the communities and residents located near the sites at which navigable roads are to be constructed. (ii) Savings provision Nothing in this subparagraph may be construed to— (I) create or negate any right of action for a State, local government, Indian Tribe, or other person or entity affected by this subsection; or (II) affect the eminent domain laws of the United States or of any State. ; (3) in subsection (c)(1), by inserting and, pursuant to subsection (d), the installation, operation, and maintenance of technology, after barriers and roads