(a) Route 193 is from:
(1) Route 65 near Lincoln to Route 80 near Newcastle.
(2) Route 49 near Cool to Route 49 near Placerville via Georgetown.
(b) Upon a determination by the commission that it is in the best interests of the state to do so, the commission may, upon terms and conditions approved by it, relinquish to the City of Lincoln the portion of Route 193 that is located within the city limits of that city if the city agrees to accept it. The following conditions shall apply upon relinquishment:
(1) The relinquishment shall become effective on the date following the county recorder’s recordation of the relinquishment resolution containing the commission’s approval of the terms and conditions of the relinquishment.
(2) On and after the effective date of the relinquishment, the relinquished portion of Route 193 shall cease to be a state highway.
(3) The portion of Route 193 relinquished under this subdivision shall be ineligible for future adoption under Section 81.
(4) For the portion of Route 193 relinquished under this subdivision, the City of Lincoln shall apply for approval of a Business Route designation for the relinquished portion of the highway in accordance with Chapter 20, Topic 21, of the Highway Design Manual.
(5) For the portion of Route 193 relinquished under this subdivision, the City of Lincoln shall install and maintain within its jurisdiction signs directing motorists to the continuation of Route 193 to the east and to Routes 65 and 80 to the west.