Cal. Sts. & High. Code § 896

The Legislature hereby declares that the acquisition of interests in real property for the preservation, maintenance or conservation of scenic lands or areas adjacent to any highway included in the national system of interstate and defense highways or the federal-aid primary highway system or to preserve, improve or enhance the natural beauty of points of interest in the lands or areas traversed by such highways provided for in Section 895 constitutes a public use and purpose.