Interstate 470 (Missouri)

Interstate 470
A red line indicating the path of I-470 through the Kansas City Metropolitan Area
Route information
Maintained by MoDOT
Length:	17.081 mi (27.489 km)
Existed:	1970 (1970) – present
History:	Completed by 1983
Major junctions
West end:	I-435 / US 50 / I-49 / US 71 in Kansas City
	US 50 / Route 350 in Lee's Summit Route 291 in Lee's Summit US 40 in Independence
North end:	I-70 in Independence
Location
Counties:	Jackson
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Missouri State Highway System Interstate US State Supplemental ← Route 465 Route 571 →

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 with I-49, I-435, U.S. Route 50 (US 50), and US 71 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.

An intermediate interchange with US 50 provides access to southern Jackson County, and to Raytown to the north via Route 350, a former alignment of US 50 before the construction of I-470. Plans for a southern freeway were first published in 1955, and the first portions of I-470 were completed in 1970. By 1983 the entire freeway was open to traffic. Since construction two new interchanges have been constructed, along with the expansion of the US 50 cloverleaf. In 2010, part of the freeway was closed by the Grandview Triangle due to a landslide underneath the freeway. Between about 38,000 and 75,000 vehicles use the freeway on an average day.