Miss. Code Ann. § 65-3-71.151

(1) That segment of Mississippi Highway 23 in Itawamba County beginning at its intersection with Mississippi Highway 178 and extending northerly to the Mississippi/Alabama state line is designated and shall be known as the “Tammy Wynette Memorial Highway.” (2) The Mississippi Department of Transportation shall erect and maintain appropriate signs along and approaching the segment of highway described in subsection (1) of this section.