SPRINGFIELD, Mo. (KY3) – Construction on Phase 1 of the Kansas Expressway Extension project in south Springfield is nearly complete. Republic Road south to Weaver Road (Farm Road 178) will open to motorists starting at 6 p.m. on Friday, Feb. 2. The remaining portion of Phase 1, from Weaver Road to Plainview Road (Farm Road 182), will open the following Friday, Feb. 9, as contractors work on the final details. Some of the work on Weaver Road requires the use of the roadway.