Interstate 435

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Interstate 435 constitutes a rural four lane freeway across the Northland of Kansas City. This scene looks west from the Woodland Avenue overpass near Nashua. 06/19/15

Interstate 435 encircles Kansas City from Leawood, Kansas east to the Three Trails Crossing Memorial Highway junction with I-49 and I-470, north to near Smithville, west to Kansas City International Airport (MCI) and south across the Missouri River to Kansas City, Kansas. The route provides both a bypass for through traffic between St. Joseph and St. Louis and a commuter route for the suburbs of Claycomo, Independence and Overland Park, Kansas. I-435 also shares a 3.58 mile concurrency with Interstate 29 between MCI Airport and Platte City.

The Kansas City beltway measures 55.179 miles in length through Jackson, Clay and Platte Counties. The portion north from Pleasant Valley to MCI Airport and southwest to Parkville is still rural generally with four lanes. Further south through east Kansas City and toward Grandview, I-435 becomes an extremely busy route with 2015 traffic counts ranging from 70,377 vehicles per day (vpd) at Claycomo to 138,952 vpd east of the Kansas state line.

Interstate 435 Guides

Eight years of construction, completed in May 2008, redesigned the former Grandview Triangle Interchange in south Kansas City. The exchange joined I-435 and I-470 with U.S. 71 north to Broadway and south to Grandview. Directional and semi directional T interchanges connected the three freeways with left exit ramps and weaving traffic patterns. The $300 million project added lanes, removed left exit ramps and reconfigured three adjacent interchanges along U.S. 71 (now I-49) to the south.1 A formal ceremony held near monuments for the Santa Fe, Oregon and California Trails on Marion Park Drive renamed the interchange the 3-Trails Crossing Memorial Highway on October 3, 2006.2 The name was approved by the Missouri General Assembly in 2005 for the three historic trails.1

The cloverstack joining Interstate 435 with Interstate 70 by the Arrowhead and Kauffman Stadium complex in east Kansas City was improved between 2010 and 2012. With alternatives evaluated in 1999, and an Environmental Impact Statement (EIS) started in 2005, the upgrades to the exchange were added to the statewide transportation improvement plan in 2007. The $32.4 million project was funded by the American Recovery and Reinvestment Act (ARRA). It added new ramps to U.S. 40 from I-435 south and from U.S. 40 to I-435 north while adding a collector distributor roadway to Interstate 70 eastbound from the beltway east to Blue Ridge Cutoff. The new traffic pattern better separates stadium traffic on I-70 east while providing an alternate route to I-435 via U.S. 40.3

A $47 million project reconfigured the exchange joining I-70 with Interstate 435 into a partial turbine interchange. Work eliminating the left exit ramps from I-435 to I-70 and improving the loop ramps from I-70 to I-435 started in Spring 2019. New directional ramps were built from I-435 north to I-70 west and from I-435 south to I-70 east. Construction was completed on October 5, 2020.

Further north, construction from Fall 2016 to September 2019 eliminated a bottleneck along Interstate 435 at Route 210 and consolidated Exit 55A/B into a single exchange. The wye interchange linking I-435 north with Route 210 west directly was eliminated and the diamond interchange with Route 210 at the city of Randolph reconfigured into a DDI. The new DDI opened to traffic on July 31, 2019.4

Interstate 435 scenes
Mexico City Avenue stems south from NW 132nd Street to a folded diamond interchange (Exit 15) with I-29/435 ahead of Kansas City International Airport (MCI). 10/07/21
Lisbon Avenue ties into Mexico City Avenue from the Economy Parking Lots of MCI Airport across from the entrance ramp to I-29/U.S. 71 south and I-435 east. 10/07/21
Woodland Avenue north at Interstate 435 by the Nashua community in the Kansas City Northland. I-435 control cities reflect the connections with I-29 and I-70 respectively. 06/19/15
State named shield directing motorists from Woodland Avenue north onto Interstate 435 east. I-435 switches to south cardinal direction banners beyond Exit 45, the next eastbound interchange. 06/19/15
I-435 travels west from Nashua to combine with Interstate 29 by Kansas City International Airport (MCI). 06/19/15
Woodland Avenue extends a short distance north from I-435 to NE 126th Street while the beltway meets the U.S. 169 freeway nearby. 06/19/15
Crossing over Interstate 435 on Woodland Avenue south ahead of the Nashua community. 06/19/15
Interstate 435 turns southward two miles to the east en route to Liberty, Claycomo and Independence before meeting I-70. 06/19/15
The bulk of the Kansas City beltway through the Northland is still rural. Subdivisions are located near the freeway, but several of the interchanges remain undeveloped. 06/19/15
Missouri Route 12 (Truman Road) west at Interstate 435 in Blue Summit. 10/17/04

  1. "Triangle traffic traumas will soon fade." Kansas City Star, The (MO), December 13, 2007.
  2. "News across the metro." Kansas City Star, The (MO), October 3, 2006.
  3. I70_I435 project web site. MoDOT - Kansas City District. Accessed October 20, 2016.
  4. I-435 and Route 210 Interchange Project. project web page. Accessed on October 18, 2021.

Photo Credits:

10/17/04, 06/19/15, 10/07/21 by AARoads

Connect with:
Interstate 29
Interstate 35
Interstate 49
Interstate 70
Interstate 470
U.S. 69
U.S. 169
Route 152
Route 291

Page Updated 10-18-2021.

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