The commissioner may lay out any road as a state highway either by using existing highways or by acquiring by purchase or condemnation new rights-of-way. The layout shall be made in the following manner: The commissioner shall develop a map or maps of the layout of a state highway by ground survey or aerial photogrammetric methods. Such map or maps shall show the limits of the right-of-way, all existing roads, buildings and fences and other topographic features which will clearly establish the location of the highway. The commissioner shall file in the town clerk’s office in each town in which such layout or portion thereof is established a map showing such portions of such layout within the limits of any such town in which such map is filed. When such maps of any section or sections of such highway have been so filed, the commissioner shall cause a notice to be inserted in a newspaper having a general circulation within each of such towns describing the action of the commissioner concerning the layout of such highway. When such maps have been placed on file and such notice given, such portion or section shall be deemed to have been legally laid out as a state highway and all provisions of the general statutes relating to state highways shall apply to such layout or highway. This section shall not affect the authority of the commissioner to relocate any section of any state highway as provided in section 13a-56.