High Quality Content by WIKIPEDIA articles! Interstate 470 (I-470) is a 16.72-mile (26.91 km) loop of the Interstate Highway System that serves to link southeast Kansas City to Independence via Lee`s Summit in Jackson County, Missouri. The western terminus of the freeway is at the Grandview Triangle interchange while the northern terminus is an cloverleaf interchange with I-70. The freeway travels west to east through southern Kansas City, curving towards the north at the Lee`s Summit Municipal Airport and becoming concurrent with Missouri Route 291 (Route 291) as the highway travels north towards Independence.