Interstate 470 (Missouri)

File:I-470 MO WB at I-70 EB exit.jpg

I-470 begins in southern Kansas City at the Grandview Triangle interchange with I-49, I-435, US 50, and US 71. The freeway, concurrent with US 50, travels east through grasslands before meeting the westernmost interchange, a diamond interchange with Blue Ridge Boulevard. A rail line belonging to Kansas City Southern Railway passes under the freeway west of the interchange.{{cite map|url=http://www.modot.mo.gov/othertransportation/rail/documents/rail_freight_061809.pdf|title=Missouri Rail Freight Carriers|inset=Kansas City|date=June 2009|publisher=Missouri Department of Transportation|format=PDF|access-date=February 19, 2011|archive-date=July 21, 2011|archive-url=https://web.archive.org/web/20110721045615/http://www.modot.mo.gov/othertransportation/rail/documents/rail_freight_061809.pdf|url-status=dead}} The concurrent highways continue east through lightly populated Jackson County, past a light residential zone, toward an interchange with Raytown Road. Raytown Road provides access to Longview Lake to the south of I-470. Longview Lake was home to the Lollapalooza music festival in 1996.{{cite news|title=Lollapa-lake-a! Lollapalooza Fest Busts out of Traditional Venues for Concert at Longview Lake|last=Beauchamp|first=Lane|page=F1|date=June 27, 1996|publisher=The McClatchy Company|newspaper=The Kansas City Star}}

Crossing into urbanized Lee's Summit, the Metropolitan Community College - Longview is accessible from the View High Drive interchange. The city line between Kansas City and Lee's Summit is near View High Drive. Exit 7 consists of a cloverleaf interchange with the southern end of Route 350 and US 50, as well as Northwest Blue Parkway and Northwest Pryor Road. Two rail lines surround the cloverleaf interchange, and, at one time, both were owned by the Union Pacific Railroad; however, only the eastern line is operational. The western line once belonged to the Chicago, Rock Island and Pacific Railroad and now is a rail trail after being sold to Jackson County. US 50 leaves the freeway and travels southeast as I-470 curves to the north near the Lee's Summit Municipal Airport.{{google maps|url=https://maps.google.com/maps?f=d&source=s_d&saddr=I-470+E&daddr=38.9378321,-94.481218+to:MO-291+N&hl=en&geocode=FYURUgId9Jtd-g%3BFegkUgIdvlRe-ilDqx0MLOfAhzGlcF6FP5Kj9w%3BFWXKUwIdJSNg-g&gl=us&mra=dme&mrsp=2&sz=14&via=1&sll=39.029452,-94.372559&sspn=0.041272,0.058966&ie=UTF8&ll=38.986367,-94.417534&spn=0.165188,0.235863&z=12|title=Interstate 470|access-date=February 19, 2011}}

A partial interchange with Northeast Colbern Road is quickly followed by a partial interchange with Route 291, which becomes concurrent with I-470 as it heads north toward Independence. Just north of the airport is an interchange with Strother Road, followed by an interchange with Woods Chapel Road. Lakewood Lakes, a pair of connected lakes, passes to the west of the freeway as it travels north. An interchange with Northeast Bowlin Road serves as an access road to Blue Springs Lake to the east of the freeway. US 40, which parallels I-70 through most of Missouri, is the penultimate exit, serving the southern portions of Independence and Blue Springs. US 40 is named after Corporal Michael E. Webster, a Missouri State Highway Patrol officer who was killed in the line of duty by a drunk driver.{{cite news|title=Highway Renamed for Trooper: Michael E. Webster Was Struck and Killed by a Drunken Driver|last=Barr|first=Paula|page=C3|date=October 4, 1995|publisher=The McClatchy Company|newspaper=The Kansas City Star}} The northern terminus of I-470 is at a cloverleaf interchange with I-70 southwest of the Independence Center mall. The roadway continues north after the interchange with I-70 as Route 291 toward its ultimate end point at an interchange with I-435.

Every three years, the Missouri Department of Transportation (MoDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of annual average daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2009, MoDOT calculated that as few as 38,152 vehicles traveled along the highway at the northern terminus just north of the interchange with I-70 and as many as 75,647 vehicles used the highway just east of the Grandview Triangle.{{cite map |publisher=Missouri Department of Transportation |title=District 4 Traffic Volume and Commercial Vehicle Count Map |url=http://www.modot.mo.gov/safety/documents/2009_Traffic_District04.pdf |format=PDF |year=2009 |access-date=February 19, 2011 |archive-date=July 21, 2011 |archive-url=https://web.archive.org/web/20110721045557/http://www.modot.mo.gov/safety/documents/2009_Traffic_District04.pdf |url-status=dead }} As part of the Interstate Highway System,{{cite journal|last=Slater|first=Rodney E.|date=Spring 1996|title=The National Highway System: A Commitment to America's Future|journal=Public Roads|issn=0033-3735|volume=59|issue=4|url=https://highways.dot.gov/public-roads/spring-1996/national-highway-system-commitment-americas-future|access-date=January 24, 2011}} the entire route is listed on the National Highway System, a system of roads that are important to the nation's economy, defense, and mobility.{{cite map|publisher=Federal Highway Administration|title=National Highway System: Kansas City MO-KS|url=http://www.fhwa.dot.gov/planning/nhs/maps/mo/kansascity_mo.pdf|archive-url=https://web.archive.org/web/20081017012321/http://www.fhwa.dot.gov/planning/nhs/maps/mo/kansascity_mo.pdf|url-status=dead|archive-date=October 17, 2008|access-date=February 19, 2011|date=November 2003|format=PDF}}

File:Kansas City, Missouri 1955 Yellow Book.jpg

Plans for a freeway linking southeast Kansas City to Independence were first published in 1955 in a document titled General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas.{{cite map|publisher=U.S. Bureau of Public Roads|title=General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas|url=http://commons.wikimedia.org/wiki/File:Kansas_City,_Missouri_1955_Yellow_Book.jpg| date=September 1955|inset=Kansas City, Missouri}} The first portions of the highway that were signed I-470 were established in 1970, between I-70 and US 40 in Independence. The north–south portion of the highway, then designated US 71 Bypass (US 71 Byp.) had been in existence since 1970 and was renumbered to Route 291 between 1970 and 1971.{{cite map|url=http://www.modot.mo.gov/newsandinfo/publications/documents/1971_back.pdf|format=PDF|publisher=Missouri Official Highway Commission|title=Missouri Highway Map|year=1971|inset=Kansas City|access-date=February 19, 2011|archive-date=July 21, 2011|archive-url=https://web.archive.org/web/20110721045959/http://www.modot.mo.gov/newsandinfo/publications/documents/1971_back.pdf|url-status=dead}} Between 1979 and 1980, the portion of the freeway between the Grandview Triangle and the exit 7 cloverleaf had been completed. US 50's alignment was changed to follow I-470 west to the Grandview Triangle, and the old routing of US 50 was renumbered Route 350.{{cite map|url=http://www.modot.org/newsandinfo/publications/documents/1980_back.pdf|format=PDF|publisher=Missouri Highway and Transportation Commission|title=Missouri Highway Map|year=1980|inset=Kansas City|access-date=February 19, 2011|archive-date=July 27, 2011|archive-url=https://web.archive.org/web/20110727091720/http://www.modot.org/newsandinfo/publications/documents/1980_back.pdf|url-status=dead}} The section of freeway between US 50 and Route 291 was opened to traffic in 1983, completing the route. Between 1980 and 1983, the portion of the route that is concurrent with Route 291 was upgraded to freeway standards and included in the I-470 loop.{{cite map|url=http://www.modot.mo.gov/newsandinfo/publications/documents/1983_1984_back.pdf|format=PDF|publisher=Missouri Highway and Transportation Commission|title=Missouri Official Highway Map|year=1983|inset=Kansas City|access-date=February 19, 2011|archive-date=July 21, 2011|archive-url=https://web.archive.org/web/20110721045807/http://www.modot.mo.gov/newsandinfo/publications/documents/1983_1984_back.pdf|url-status=dead}}

Since construction of the highway, three interchanges have been added or expanded. The first addition was an interchange with View High Drive, which was constructed in early 1993, costing about $2 million (equivalent to ${{Formatprice|{{inflation|US-GDP|2000000|1993}}}} in {{Inflation/year|index=US-GDP}}{{Inflation/fn|index=US-GDP}}) to complete.{{cite news|title=Road Work Expected to Open up Traffic to Western Lee's Summit|date=March 4, 1993|publisher=The McClatchy Company|newspaper=The Kansas City Star}} The second was an addition to the existing cloverleaf at US 50 in Lee's Summit, adding access roads to Pryor Road and Northwest Blue Parkway. Construction on that interchange began in July 2007{{cite news|title=Work is to Start This Month on an Interchange Pryor, I-470|last=Pulley|first=Russ|page=LS1|date=July 14, 2007|publisher=The McClatchy Company|newspaper=The Kansas City Star}} and was completed by September 2008.{{cite news|title=Navigation: Road Work is Frustrating, but Signals Progress|last=Hoffmann|first=Kevin|page=LS2|date=September 20, 2008|publisher=The McClatchy Company|newspaper=The Kansas City Star}} The third interchange, with Strother Road, was first planned to be constructed in 2008. The road served to provide access to the industrial park west of the freeway and to spur new development on land pending sale by the Church of Jesus Christ of Latter-day Saints to the east of the freeway.{{cite news |url=http://www.examiner.net/news/x390625543/Strother-Road-project-will-give-access-to-I-470 |title=Strother Road Project Will Give Access to I-470 |last=Coleman-Topi |first=Debbie |date=July 5, 2008 |work=The Examiner |access-date=February 19, 2011 |location=Independence, Mo. |archive-url=https://archive.today/20130221103347/http://www.examiner.net/news/x390625543/Strother-Road-project-will-give-access-to-I-470 |archive-date=February 21, 2013 |url-status=dead }} The interchange was opened to traffic in August 2010 at a final construction cost of around $18 million (equivalent to ${{Formatprice|{{inflation|US-GDP|18000000|2010}}}} in {{Inflation/year|index=US-GDP}}{{Inflation/fn|index=US-GDP}}).{{cite news|title=Ceremony to Open New Interchange at I-470 and Strother Road in Lee's Summit|date=August 19, 2010|publisher=The McClatchy Company|newspaper=The Kansas City Star}}

In July 2010, MoDOT closed the westbound lanes of I-470 near the Grandview Triangle due to large cracks that formed in the roadway.{{cite news|title=Part of Key Interchange in KC is Closed|date=July 19, 2010|work=St. Louis Post-Dispatch|publisher=Lee Enterprises|pages=A12|agency=Associated Press}} A buildup of ground water underneath the westbound lanes caused a {{convert|42|ft|m|adj=mid|-high}} retaining wall to fall or fail. A landslide occurred on July 17 which created a {{convert|35|x|200|ft|adj=on}} hole in the roadway. The eastbound lanes were not affected and were not closed. The affected area was replaced by a {{convert|225|ft|m|adj=mid|-long}} bridge extension that opened in the following month.{{cite news|last1=Parsons|first1=Jim|title=MoDOT Moves To Replace Failed Kansas City Highway Ramp|work=Engineering News-Record|volume=265|issue=4|date=August 2, 2010|page=14}}{{cite news|title=Three Trails Crossing Ramp, Closed After a Section Collapsed, is to Reopen Today|last=Cooper|first=Brad|page=A4|date=August 27, 2010|publisher=The McClatchy Company|newspaper=The Kansas City Star}}

{{jcttop|exit|state=MO|county=Jackson|length_ref={{MoDOT Flex|access-date=2014-03-13}}|exit_ref=}}

{{MOint|exit

|location=Kansas City

|lspan=4

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|mile=0.000

|mile2=0.596

|exit=—

|road={{Jct|state=MO|I|435|dir1=West|US|50|dir2=West|location1=Wichita}}

|notes=I-435 exit 71A; Western terminus at the Grandview Triangle; western end of US 50 overlap.

}}

{{MOint|exit

|mile=0.615

|mile2=1.000

|exit=1A

|road={{jct|state=MO|I|49|US|71|dir2=South|city1=Grandview|city2=Joplin}}

|notes=I-49 exit number signed 183A; southern end of the Grandview Triangle; northern terminus of I-49

}}

{{MOint|exit

|exit=2

|mile=2.083

|road=Blue Ridge Boulevard

}}

{{MOint|exit

|mile=4.076

|exit=4

|road=Raytown Road

}}

{{MOint|exit

|location=Lee's Summit

|lspan=9

|mile=5.354

|exit=5

|road=View High Drive

|notes=Western ramps are partially located in Kansas City; access to Longview Lake and MCC-Longview

}}

{{MOint|exit

|mile=6.637

|mile2=8.148

|exit=7C

|road=Pryor Road, Blue Parkway

}}

{{MOint|exit

|type=concur

|mile=7.599

|mile2=7.645

|exit=7A‑B

|road={{Jct|state=MO|US|50|dir1=East|MO|350|dir2=West|city1=Raytown|city2=Sedalia}}

|notes=Eastern end of US 50 overlap; signed as exits 7A (east) and 7B (west)

}}

{{MOint|exit

|mile=9.286

|exit=9

|road={{jct|extra=hospital}}Douglas Street, Colbern Road

|notes=Access to Truman Medical Center-Lakewood and Saint Luke's East Hospital}}

{{MOint|exit

|type=incomplete

|mile=10.067

|exit=10A

|road=Colbern Road

|notes=Westbound exit and northbound entrance only; orientation changes from east/west to north/south

}}

{{MOint|exit

|type=concur

|mile=10.318

|mile2=10.418

|exit=10B

|road={{jct|state=MO|MO|291|dir1=south|city1=Harrisonville}}

|notes=Southern end of Route 291 overlap, northbound entrance and westbound exit only

}}

{{MOint|exit

|mile=11.636

|exit=11

|road=Strother Road

}}

{{MOint|exit

|mile=12.644

|exit=12

|road={{jct|extra=hospital}}Woods Chapel Road

|notes=Access to Truman Medical Center-Lakewood and Fleming Park}}

{{MOint|exit

|mile=14.158

|exit=14

|road=Lakewood Boulevard, Bowlin Road

}}

{{MOint|exit

|location=Independence

|lspan=3

|mile=16.187

|mile2=16.198

|exit=16A

|road={{jct|state=MO|US|40}}

}}

{{MOint|exit

|mile=16.493

|mile2=17.081

|exit=16B‑C

|road={{jct|state=MO|I|70|city1=Kansas City|city2=St. Louis}}

|notes=I-70 exits 15A-B; northern terminus & signed as exits 16B (east) & 16C (west); cloverleaf interchange.

}}

{{MOint|exit

|type=concur

|mile=17.081

|exit=—

|road={{Jct|state=MO|MO|291|dir1=North|city1=Liberty}}

|notes=Continuation past I-70, exit 15B; northern end of Route 291 overlap

}}

{{Jctbtm|exit|keys=incomplete,concur}}

• {{Portal-inline|U.S. Roads}}

{{Reflist|30em}}

{{Attached KML|display=inline,title}}

• {{commons category-inline}}
• [http://www.interstate-guide.com/i-470_mo.html Interstate 470 in Missouri] on Interstate-Guide.com
• [http://www.cosmos-monitor.com/cgi-bin/mo-log-routes.cgi?number=470 Interstate 470 in Missouri] on Missouri Highways Route Log

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4 (Missouri)

70-4 Missouri

70-4

Category:Transportation in the Kansas City metropolitan area

Category:Transportation in Jackson County, Missouri