K-140 is a state highway in Ellsworth and Saline Counties in the U.S. state of Kansas. The highway travels 33.224 miles (53.469 km) through mostly rural land between the cities of Ellsworth and Salina. In addition to connecting Ellsworth and Salina, K-140 travels through the communities of Carneiro, Brookville, and Bavaria. The highway has junctions with Kansas state highways K-14, K-156, K-111, and K-141, as well as Interstate 135. The route was originally established as U.S. Route 40 and was redesignated K-140 after US-40 was made concurrent with Interstate 70. K-140 is not a part of the United States National Highway System, and the entire route is paved with composite pavement. The western part of the highway is less traveled than the eastern part, with annual average daily traffic bet