The section of K-15 in Wichita from the south city limit to I-135 is maintained by the city. The section of K-15 in Newton from US-50 to the north city limit is maintained by the city. The entire  section within Abilene is maintained by the city.
The city maintains a portion of K-15 in Wichita, from the south city limit to I-135.  Similarly, the city manages another segment of K-15 in Newton, from US-50 to the north city limit. Finally, the entire section of K-15 within Abilene is under the city's jurisdiction.