The location of any right-of-way through any canyon, pass or defile shall not cause the disuse of any wagon [road] or other public highway now located therein, nor prevent the location through the same of any such wagon road or highway, where such road or highway may be necessary for the public accommodation; and where any change in the location of such wagon road is necessary to permit the use of such right-of-way or easement, the user of such right-of-way or easement, shall before entering upon the ground occupied by such wagon road, cause the same to be reconstructed at his own expense in the most favorable location, and in as perfect a manner as the original road.