Interstate 470 (Missouri)

Interstate 470
Interstate 470
	I-470 highlighted in red
Route information
	Auxiliary route of I-70
	Maintained by MoDOT
Length	17.081 mi (27.489 km)
Existed	1970–present
History	Completed by 1983
NHS	Entire route
Major junctions
West end	I-49 / I-435 / US 50 / 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 / Route 291 in Independence
Location
Country	United States
State	Missouri
Counties	Jackson
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Missouri State Highway System; Interstate; US; State; Supplemental;

Interstate 470 (I-470) is a 16.72-mile (26.91 km) loop of the Interstate Highway System that links 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 a cloverleaf interchange with I-70. The freeway travels west to east through southern Kansas City, curving toward the north at the Lee's Summit Municipal Airport and becoming concurrent with Route 291 as the highway travels north toward 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 38,000 and 75,000 vehicles use the freeway on an average day.

^ Cite error: The named reference MoDOT Flex was invoked but never defined (see the help page).
^ Missouri Official Highway Map (PDF) (Map). Missouri State Highway Commission. 1970. Kansas City inset. Archived from the original (PDF) on July 27, 2011. Retrieved February 19, 2011.
^ Cite error: The named reference 83 modot was invoked but never defined (see the help page).

[MoDOT_Flex-1] Cite error: The named reference MoDOT Flex was invoked but never defined (see the help page).

[70_modot-2] Missouri Official Highway Map (PDF) (Map). Missouri State Highway Commission. 1970. Kansas City inset. Archived from the original (PDF) on July 27, 2011. Retrieved February 19, 2011.

[83_modot-3] Cite error: The named reference 83 modot was invoked but never defined (see the help page).

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