Kan. Stat. § 12-687
The governing body of such city shall have power to improve or reimprove or cause to be improved or reimproved, any main trafficway or trafficway connection designated and established under the provisions of this act. Such improvement or reimprovement may include grading, regrading, curbing, recurbing, guttering, reguttering, paving, repaving, macadamizing, remacadamizing, constructing, reconstructing, opening, widening, extending, rounding corners, straightening, relocating, building any necessary bridges and approaches thereto, viaducts, overpasses, underpasses, culverts and drainage, trafficway illumination, traffic control devices, pedestrian ways, or other improvements, or any two (2) or more of such improvements or reimprovements and the acquisition of right-of-way by purchase or condemnation when necessary for any of such purposes. The governing body may also employ highway and traffic engineering assistance when necessary to the proper development and planning of such improvement or reimprovement.
K.S.A. 12-687