Okla. Stat. tit. 69 § 1678
No section of State Highway 270 extending between N.E. 23rd Street to the municipal limits of McLoud, Oklahoma, shall be named or renamed, except as provided in this section. The section of highway on State Highway 270 extending from Harrah, Oklahoma, between N.E. 23rd Street to S.E. 29th Street shall be designated as "Harrah Road". The section of highway on State Highway 270 extending from where the newly designated "Harrah Road" intersects with S.E. 29th Street to the McLoud municipal limits shall be designated as the "Billy Fairl Morgan Memorial Highway". Any existing name on the section of highway between N.E. 23rd Street and the municipal limits of McLoud shall be removed. The Department of Transportation shall cause suitable permanent markers to be placed on the section of highway between S.E. 29th Street and the municipal limits of McLoud bearing the name "Billy Fairl Morgan Memorial Highway".
Okla. Stat. tit. 69, § 1678