B. The use of the public roads and highways by such public utility or cable television system shall be for the purpose of erecting poles and posts, attaching equipment, wires and fixtures thereto and laying pipes and conduits under the surface thereof. All poles, wires, fixtures, pipes and conduits shall be erected, placed, adjusted or laid and maintained only after obtaining the consent pursuant to rules promulgated by the Department of Transportation as to the state highway system, and the boards of county commissioners of the various counties as to roads and highways under their jurisdiction. Provided, however, in the event a utility or cable television system which has facilities located on private easements is included within the public right-of-way as a result of construction, reconstruction, improvement or other modification, it shall be granted prior rights, as defined below. Such utility or cable television system, which complies with the Underground Damage Prevention Act shall not be liable for damages to any other utility, which locates facilities within the area encompassed, to the extent practicable without interfering with or endangering the public in the use of its roads and highways, by the private easements of the public utility or cable television system included within the public right-of-way, as a result of the operation, maintenance or repair of such utility's or cable television system's facilities. The term "prior rights" as used in this section refers to a situation involving a utility company that was located on private easements which are later encompassed by the state's right-of-way. When a utility company is in private easements which are acquired or encompassed by the right-of-way of the Department, it is given a choice of relocating their conflicting facilities into a public right-of-way or acquiring a new private easement and relocating onto it. Either of said relocations shall be at the expense of the Department. Whenever a utility company relocates into a public right-of-way, the utility company shall have prior rights. If a subsequent relocation is required by the Department, the utility company shall be given a choice to relocate onto public easements or to relocate into a private right-of-way, and both will be at the expense of the Department. The utility shall have prior rights for any subsequent relocation requested by the Department. If a public utility or cable television system elects to relocate its facilities to a newly acquired private right-of-way, the utility shall forfeit all rights and claims in its easements to the extent such easements are now contained in the public right-of-way as a result of construction, reconstruction, improvement, or other modification. Nothing in this section shall be construed to grant the right to use the streets or other places of any municipality of this state without the consent of the municipality. Provided, further, that the boards of county commissioners may grant to any citizen the right to lay pipes and conduits under the surface of any road or highway under their jurisdiction, subject to such rules, regulations and conditions as shall be prescribed by the board of county commissioners. Nothing in this section shall be construed to limit any rights granted by other provisions of law. All poles, wires, posts, conduits and equipment shall be erected, placed, adjusted, laid, constructed and maintained so as not to inconvenience or endanger the public in the use of its roads and highways and shall conform to all applicable provisions of the National Electrical Safety Code approved by the American National Standards Institute, in effect at the time of such erection, placement, adjustment, or construction. Public utilities or cable television systems shall completely repair or replace any damage, injury or other change to public roads or highways or rights-of-way of this state or any county or municipality which would inconvenience or endanger the public which are caused by the erection, placement, adjustment, construction or maintenance of any public utility or cable television system poles, wires, posts, conduits or other equipment. Nothing in this act shall be interpreted to impair the right of recovery against any third party for such damage or injury.