sentences:  There is also a third child route in Topeka, I-335, which runs from I-470 south to meet up with I-35 in the Flint Hills town of Emporia.Just past the Bonner Springs Toll Plaza I-70 crosses I-435 for the first time, which allows travelers to bypass the downtown traffic via I-435, which encircles the Kansas City metropolitan area.Further down the highway in Kansas City, Kansas, approximately before the 18th Street Expressway, I-70 is intersected again by another child route.