Okla. Stat. tit. 69, § 69-648: Appropriation of highway by county or city for public

purpose - Dedication of adjacent land.

In any case in the state where a public highway has been

appropriated and occupied by a county or municipality for a public

purpose and such county or municipality owns adjacent land, the

board of county commissioners of such county or the governing body

of such municipality may convey and dedicate to the public for

street or highway purposes such adjacent lands or a sufficient part

thereof for such purpose in lieu of the highway by them so

appropriated and occupied.