Oklahoma State Highway 14 route continued north along present-day U.S. 281 through Alva to the state line south of Hardtner, Kansas. (The old road north of Vici became part of SH-34.) New U.S. routes were added to Oklahoma's highway system in 1938. Among these were US-281, formerly a split route with one section in Kansas and one in Texas, which was connected in 1938 via Oklahoma; also added in 1938 was a southern extension of US-183. These two routes were overlaid onto SH-14, with US-183 entering the state from the south near Davidson and following the SH-14 route to Seiling, and US-281 taking the
U.S. Route 50 in Kansas before it angles northeast to Emporia, another meat-packing town as well as the home of Emporia State University. US-50 then joins I-35 and it overlaps that interstate for most of the rest of the way in Kansas. US-50, along with I-35, then passes through a place known as "BETO Junction," which is where it meets US-75 north of Burlington. The letters in the acronym stand for Burlington, Emporia, Topeka and Ottawa, which are the cities to the south, west, north and east, respectively. From there, US-50 passes through Olathe and meets I-435 in Lenexa. At this point. US-50 leaves I-35