Okla. Stat. tit. 19, § 1255

In all cases where the board of county commissioners shall deem it necessary to pave, construct, macadamize, chat or gravel, curb, gutter, drain or otherwise improve any road, street, avenue, alley, lane or any part thereof, which shall have been heretofore paved, constructed, macadamized, curbed, guttered, drained or otherwise improved, such improvement is authorized to be done under and in pursuance of the provisions of this act, and in such case all provisions of this act for making such improvements and levying assessments therefor and the issuance of bonds shall apply.