Length: 3.440 miles West Endpoint: Intersection with Rawlins Road, Potter East Endpoint: Junction US 73 east of Potter Counties Passed through: Atchison History K-74 shows up on the 1927 State Highway map as a dirt road. It was gravelled by 1930 and hard surfaced by 1936. The road was turned over to Atchison County in December of 2013 (Permalink)