(a) The department is authorized to acquire by purchase, exchange, gift, or condemnation land or any interest in land necessary for the restoration, preservation, and enhancement of scenic beauty, within or adjacent to the rights-of-way of highways on the state highway system.
(b) The department may acquire and develop publicly owned and controlled rest and recreation areas and sanitary and other facilities within or adjacent to the highway right-of-way reasonably necessary to accommodate the traveling public.
(c) The department may make improvements necessary to implement the purposes of AS 19.22.010.
(d) The condemnation authority granted by this chapter may not be exercised beyond 660 feet from the right-of-way of the highway.