Interstate 435 Kansas / Missouri

Northbound Interstate 435 approaches its junction with Interstate 70 (Kansas Turnpike) in Kansas City, Kansas. Photo taken 10/17/04.


Interstate 435 is the 83-mile, two-state beltway encircling the Kansas City metropolitan are. The freeway serves Kansas City International Airport (MCI), Overland Park and Independence among other suburban cities. The route overlaps with approximately three miles of Interstate 29 in northwest Kansas City. Areas of the north beltway are fairly rural while I-435 to the southwest, south and east of Kansas City are suburbanized with heavy commuter traffic.

The Kansas City Beltway is topped only by Interstate 275 around the Cincinnati metropolitan area as the longest circular route in the Interstate system (84 vs. 83 miles).

Planned Improvements

The $600-million Johnson County Gateway project focuses on upgrading Interstate 435 between West 87th Street and U.S. 69 in the Overland Park area. Phase 2 of construction rebuilds the beltway from K-10 eastward during 2014-16 while Phase 3 extends work northward to 87th Street at a date to be determined.

Work commenced on the $288-million Phase 2 of the Johnson County Gateway project in May 2014. Construction alters the three-wye interchange with the K-10 freeway to incorporate it with new collector distributor roadways leading east to Lackman Road and the cloverstack interchange with Interstate 35. Subsequent work will replace the loop ramp from I-35 north to I-435 west with a new flyover while extending the c/d roadway system north from K-10 to 95th Street. Phase 2 work should wrap up by December 31, 2016.


AASHTO designated the Kansas City beltway as I-435 on June 23, 1969. The route appears on the Missouri Official Highway Map by 1964, but only as an east side bypass between I-35 near Lenexa, Kansas and I-35 at Claycomo, Missouri. The initial section of freeway open to traffic ran east from I-35 to U.S. 69 in Overland Park, Kansas by 1967. The freeway north and east to Missouri 78 (East 23rd Street) at Blue Summit was completed by 1970.

The original I-435 alignment east of I-35 was finished by 1975, with a full cloverleaf interchange at the west end with a local road tieing it into Pflumm Road to the south and a semi directional-T interchange at Claycomo to the north. An east-west section of I-435 parallel to Missouri 291 between Exits 36 and 41A/B was opened by 1983.

Interstate 435 in Kansas and Missouri was fully open to traffic in December 1986 with the completion of the Missouri River Bridge.1

The Grandview Triangle Interchange, where Interstates 49, 435, 470 and U.S. 50 and 70 come together, was upgraded during roadwork from fall 2000 to May 2008. $300-million in construction focused on expanding the U.S. 71 mainline by three lanes per direction, added two lanes for the continuation of I-435 east, and shifting the left-hand ramp from I-435 east to I-49 and south and I-470 east to the right. Interchanges were also revamped along I-49 & U.S. 71 to the south at Blue Ridge Boulevard, Red Bridge Road and Longview Road. Work on the freeway mainlines was formally completed during a ceremony held on December 14, 2007. Officials buried a steel triangle that day to symbolize a new era of transportation as the old Grandview Triangle Interchange days were over. The junction was renamed by the Missouri General Assembly in 2005 as the "Three Trails Crossing Memorial Highway". The Three Trails name is derived from the trails, Santa Fe, Oregon and California, that historically ran through the area.1

Highway Guides

Beltway Milepost 0 - Interstate 35 - Lenexa, Kansas
Perspective from Interstate 435 south
Interstate 435 East mileage sign. Interstate 35 is 1.25 miles away at this point. This sign is located inside the Interstate 435/Kansas 10 interchange (Exit 1B), where Interstate 435 turns from north-south to east-west. The bridge in the background is the ramp from Kansas 10 East to Interstate 435 East. Photo taken by Eric Stuve (11/30/02).
Interstate 435 eastbound at Exit 1A/Lackman Road. This is the last mainline interchange before the exit numbers reset. This occurs in accordance with the placement of milepost 0 at the Interstate 35 interchange. Photo taken by Eric Stuve (11/30/02).
A second perspective of the Exit 1A/Lackman Road sign bridge on Interstate 435 south. The beltway switches to east/west cardinal directions at this point, with Exit 83 serving Interstate 35 in one mile. Photo taken by Ben Prusia.
One-half mile to the west of Interstate 35/Exit 83 at Exit 1A. Lackman Road is one of several thoroughfares that Interstate 435 sees interchanges for in the suburb of Lenexa. Photo taken by Eric Stuve (11/30/02).
Interstate 435 maintains three eastbound lanes through the Interstate 35 interchange. Junction U.S. 56 and 169 shields are posted on the sign bridge support to the right. U.S. 56 overlaps with Interstate 35 through this interchange while U.S. 169 enters Interstate 435 east from Interstate 35 north. This is a common practice in the Kansas City area to indicates U.S./Interstate multiplexes. Photo taken by Eric Stuve (11/30/02).
Traffic for Interstate 35/Exit 83 departs to the right as Interstate 435 picks up U.S. 169 north and proceeds eastward to Overland Park, Leawood, and south Kansas City, Missouri. U.S. 169 departs in four miles at Exit 79/Metcalf Avenue. Photo taken by Eric Stuve (11/30/02).
Proceeding onto the Exit 83 ramp to Interstate 35 sees this sign bridge at the split. Wichita is 178 miles to the south. The Iowa state capital is approximately 255 miles to the north. Interstate 35 northbound will enter the Kansas City, Kansas city limits in ten miles. Photo taken by Eric Stuve (11/30/02).
Perspective from Interstate 35 north
Centerline upcoming exits sign for Interstate 435, one mile south of the interchange. Note the omission of the U.S. 169 northbound departure from Interstate 35. Photo taken by Eric Stuve (11/30/02).
Nondescript Exit 222A guide sign for Interstate 435 eastbound, one-half mile south of the junction. 20 miles to the east via Interstate 435 is Interstate 70. Photo taken by Eric Stuve (11/30/02).
Northbound Interstate 35 at Exit 222A/Interstate 435 east and U.S. 169 north. The lack of control cities for the Kansas City beltway is reminiscent of the lack of control cities for the Indianapolis Beltway (Interstate 465). This meaning that Interstate junctions with the beltway see no destinations for Interstate 465. Photo taken by Eric Stuve (11/30/02).
As the Interstate 435 west to Interstate 35 southbound (carrying U.S. 169) flyover soars overhead, Exit 222B for Interstate 435 westbound departs. The beltway turns to the north within two miles and passes through Lenexa and Shawnee before entering the Kansas City, Kansas city limits. Photo taken by Eric Stuve (11/30/02).
North Parent Junction - Interstate 35 - north Kansas City, Missouri
Perspective from Interstate 435 north
Interstate 435 northbound at Exit 54-Parvin Road/48th Street. The next exit is for Exit 52, connecting to Interstate 35 and U.S. 69. The two highways are not overlapped, but do parallel each other closely. The roller coasters in the background are at the Worlds of Fun amusement park. Photo taken by Eric Stuve (11/30/02).
One mile south of Interstate 35/Exit 52B on Interstate 435 northbound. Note that the control city of Saint Joseph represents the connection to Interstate 29 near Kansas City International Airport. Photo taken by Eric Stuve (11/30/02).
Exit 52A for U.S. 69 leaves to the right as the center lanes prepare to depart for Interstate 35/Exit 52B. U.S. 69 serves the Claycomb section of northeast Kansas City as Liberty Boulevard. The highway eventually enters Interstate 35 one mile to the north. Photo taken by Eric Stuve (11/30/02).
Continuing northward to Exit 52B for Interstate 35 is this sign bridge. The ramp crosses over U.S. 69. The stoplights on the right are those for U.S. 69 and the exit ramp. Photo taken by Eric Stuve (11/30/02).
Perspective from Interstate 35 south
Original button copy signage for Interstate 435/Exit 12A on Interstate 35 southbound. The orientation of the two freeways allows for only a ramp to Interstate 435 south from Interstate 35 south. Note that the control city of the Beltway is now Saint Louis, due to the connection with Interstate 70 nine miles to the south. Photo taken by Eric Stuve (11/30/02).
Interstate 35 southbound at Exit 12A for Interstate 435 south. These guide signs are also originals, retaining button copy shields. Interstate 35 enters downtown Kansas City in about nine miles. Even closer is the overlap with Interstate 29, only four miles to the southwest. Photo taken by Eric Stuve (11/30/02).
Perspective from Interstate 35 north
Interstate 435/Exit 12A 0.75 mile guide sign on Interstate 35 north. The darker green area behind the Interstate 435 shield is an imprint leftover from the replaced original button copy shield. The sign itself dates from the completion of Interstate 35 through here. Photo taken by Eric Stuve (11/30/02).
A newer reflective sign for Interstate 435 south. The control city again is that of Saint Louis. The eastern half of the beltway also serves the suburbs of Independence and Raytown. Photo taken by Eric Stuve (11/30/02).
More button copy signage is displayed on this sign bridge at Exit 12A for Interstate 435 south. The right-hand panel is completely original, with an extra large Interstate 435 shield. Unlike Interstate 35 southbound, access to both directions of Interstate 435 is provided. Photo taken by Eric Stuve (11/30/02).
Just like the south parent junction, Interstate 435 and 35 share a stack interchange at the north junction. This photo looks at Exit 12B for Interstate 435 northbound. The Beltway will reach Kansas City International Airport in approximately 18 miles. Photo taken by Eric Stuve (11/30/02).


  1. Kansas Interstate 50th Anniversary
  2. "Triangle traffic traumas will soon fade." The Kansas City Star, December 13, 2007.

Page Updated October 21, 2016.