Interstate 470 (Kansas)
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| Dr. Martin Luther King Jr. Memorial Highway | ||||
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| Route information | ||||
| Maintained by Kansas Department of Transportation and Kansas Turnpike Authority | ||||
| Length: | 13.72 mi (22.08 km) | |||
| Existed: | October 21, 1960 – present | |||
| Major junctions | ||||
| West end: |
    I-70 / US-40 / K-4 / US-75 in Topeka
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US-75 in Topeka  I-335 / Kansas Turnpike in Topeka |
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| East end: |
I-70 / Kansas Turnpike / US-40 / K-4 in Topeka |
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| Highway system | ||||
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Interstate 470 (I-470) is a 13.72-mile (22.08 km) loop highway that bypasses the downtown area of Topeka, Kansas. I-470 begins at an interchange with Interstate 70 in western Topeka and heads generally southeast, running concurrent with U.S. Route 75 (US-75). The concurrency with US-75 ends 5.74 miles (9.24 km) later at the Burlingame Road interchange. I-470 becomes part of the Kansas Turnpike at its junction with Interstate 335. From there, the highway heads generally northeast through the southeastern sections of Topeka. After traveling 7.03 miles (11.31 km) as the Kansas Turnpike, I-470 reaches its eastern terminus with Interstate 70. The highway has annual average daily traffic values as high as 43,000 west of Gage Boulevard to as low as 10,370 near the eastern terminus with Interstate 70. As an interstate highway, Interstate 470 is a part of the United States National Highway System. The non-turnpike portions of the highway are maintained by the Kansas Department of Transportation, while the turnpike portion is maintained by the Kansas Turnpike Authority.
The Kansas Turnpike was opened in the 1950s, comprising the eastern portion of the route. In the late 1950s construction began on the western portion of I-470, and on October 21, 1960, the western section of I-470 was dedicated and opened to traffic. In 1982, Interstate 470 was designated as "Martin Luther King Jr. Memorial Highway". The routing of I-470 has not changed since the completion of the highway.
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