Kan. Stat. Ann. § 68-1028
Interstate highway I-470 from the east Topeka interchange of the Kansas turnpike to its intersection with I-70 west of Topeka is hereby designated as "the Dr. Martin Luther King Jr. memorial highway." The secretary of transportation shall place markers along the highway right-of-way at proper intervals to indicate that the highway is the Dr. Martin Luther King Jr. memorial highway.
L. 1982, ch. 278, § 1; July 1.