South Endpoint:
North Endpoint:
Counties Passed through: Washington
North Endpoint:
Nebraska State Line south of Lanham, NE
Counties Passed through: Washington
History
K-15 existed as a "split route" north of Linn. It was the only split 'K' route (US 40, US 50, US 73, and I-35 also had split routes in Kansas at one time or another) and was the last split router in Kansas to be eliminated. The eastern part of the split was re-designated as an extension of K-148 by 1986.