As used in this section, “public service facility” includes all privately, publicly or cooperatively owned lines, facilities and systems for producing, transmitting or distributing communications, cable television, power, electricity, light, heat, gas, oil, crude products, water, steam, waste, storm water not connected with highway drainage and any other similar commodities, including fire and police signal systems and street lighting systems which directly or indirectly serve the public. Whenever the commissioner determines that any public service facility located within, on, along, over or under any land comprising the right-of-way of a state highway or any other public highway when necessitated by the construction or reconstruction of a state highway shall be readjusted or relocated in or removed from such right-of-way, the commissioner shall issue an appropriate order to the company, corporation or municipality owning or operating such facility, and such company, corporation or municipality shall readjust, relocate or remove the same promptly in accordance with such order; provided an equitable share of the cost of such readjustment, relocation or removal, including the cost of installing and constructing a facility of equal capacity in a new location, shall be borne by the state, except that the state shall not bear any share of the cost of a project of an electric distribution company, as defined in § 16-1, to readjust, relocate or remove any facility, as defined in subsection (a) of § 16-50i, used for transmitting electricity or as an electric transmission trunkline. The Department of Transportation shall evaluate the total costs of such a project, including department costs for construction or reconstruction and electric distribution company costs for readjusting, relocating or removing such facility, so as to minimize the overall costs incurred by the state and the electric distribution company. The electric distribution company may provide the department with proposed alternatives to the relocation, readjustment or removal proposed by the department and shall be responsible for any changes to project costs attributable to adoption of the company’s proposed alternative designs for such project, including changes to the area of the relocation, readjustment or removal and any incremental costs incurred by the department to evaluate such alternatives. If such electric distribution company and the department cannot agree on a plan for such project, the Commissioner of Transportation and the chairperson of the Public Utilities Regulatory Authority shall, on request of the company, jointly determine the alternative for the project. Such equitable share, in the case of or in connection with the construction or reconstruction of any limited access highway, shall be the entire cost, less the deductions provided in this section, and, in the case of or in connection with the construction or reconstruction of any other state highway, shall be such portion or all of the entire cost, less the deductions provided in this section, as may be fair and just under all the circumstances, but shall not be less than fifty per cent of such cost after the deductions provided in this section. In establishing the equitable share of the cost to be borne by the state, there shall be deducted from the cost of the readjusted, relocated or removed facilities a sum based on a consideration of the value of materials salvaged from existing installations, the cost of the original installation, the life expectancy of the original facility and the unexpired term of such life use. When any facility is removed from the right-of-way of a public highway to a private right-of-way, the state shall not pay for such private right-of-way, provided, when a municipally owned facility is thus removed from a municipally owned highway, the state shall pay for the private right-of-way needed by the municipality for such relocation. If the commissioner and the company, corporation or municipality owning or operating such facility cannot agree upon the share of the cost to be borne by the state, either may apply to the superior court for the judicial district within which such highway is situated, or, if said court is not in session, to any judge thereof, for a determination of the cost to be borne by the state, and said court or such judge, after causing notice of the pendency of such application to be given to the other party, shall appoint a state referee to make such determination. Such referee, having given at least ten days’ notice to the parties interested of the time and place of the hearing, shall hear both parties, shall view such highway, shall take such testimony as such referee deems material and shall thereupon determine the amount of the cost to be borne by the state and immediately report to the court. If the report is accepted by the court, such determination shall, subject to right of appeal as in civil actions, be conclusive upon both parties.