 In a September 9, 1969 resolution, K-4 was realigned slightly within Lindsborg and onto US-81.In a January 4, 1982 resolution, US-81, along K-4 from Lindsborg to US-81 in Bridgeport, was redesignated as US-81 Business.In an October 10, 1991 resolution, K-4 was extended south from US-24 to US-40 west of Tecumseh.