In every county of this state having a population of more than 175,000 persons and less than 210,000, the board of county commissioners is hereby authorized to acquire by gift, purchase, or the exercise of the right of eminent domain, in the manner provided by law, a site adjacent to or near the existing courthouse in said county for the purpose of constructing thereon public parking facilities for motor vehicles.
K.S.A. 19-27,136