U.S. Route 50 in Missouri

U.S. Route 50 (US 50) is a major east–west route in the state of Missouri. It is also known as the Rex M. Whitton Expressway in the capital of Missouri.

U.S. Route 50
Route information
Maintained by MoDOT
Length263.58 mi[1] (424.19 km)
Major junctions
West end I-435 / US-50 in Leawood, KS
  I-49 / US 71 / I-470 in Kansas City
I-470 / Route 350 in Lees Summit
US 65 in Sedalia
US 54 / US 63 in Jefferson City
I-44 from Union to Kirkwood
I-270 in Sunset Hills
US 61 / US 67 in Kirkwood
I-255 near St. Louis
East end I-255 / US 50 towards Columbia, IL
CountiesJackson, Johnson, Pettis, Morgan, Moniteau, Cole, Osage, Gasconade, Franklin, St. Louis
Highway system
Route 49Route 51

Route description

US 50 enters Missouri from Kansas along Interstate 435 around Kansas City and then it runs concurrently with Interstate 470 to Lee's Summit. It runs as an expressway to Sedalia before becoming Broadway Boulevard and intersecting with U.S. Route 65 (Limit Avenue). From Sedalia to California, US 50 becomes a 2-lane undivided road, where it has a concurrency with Highway 5 from Syracuse to Tipton between Morgan and Moniteau Counties. It resumes as an expressway from California to Jefferson City, has a brief distance as a main road, and picks up expressway status again. It has a 15-mile-long concurrency with US 63 for 12 miles (19 km) from Jefferson City. From just west of Linn to Union, the road is two lanes. After passing through Linn as Main Street, it shares short concurrencies with Highways 89 and 19 between Osage and Gasconade counties and intersects with Highway 47 in Union. After going through this city, U.S. 50 is routed along Interstate 44 up to Sunset Hills. It heads east and merges with U.S. Routes 61 and 67.

These three concurrent U.S. routes run this way until after the interchange with Interstate 55. U.S. Highways 61 and 67 split off, leaving U.S. 50 to merge with Interstate 255 to cross the Mississippi River on the Jefferson Barracks Bridge in St. Louis.


Until 1926, US 50 in Missouri was Route 12.[2]

Major junctions

MissouriKansas line0.0000.000 I-435 / US-50 west WichitaContinuation into Kansas
75BState Line RoadExit numbers follow I-435
JacksonKansas City0.6611.06475AWornall Road
1.4162.27974Holmes Road
2.2473.61673103rd StreetWestbound exit and eastbound entrance
I-470 begin / I-435 north Des MoinesEastern end of I-435 overlap; left exits and entrances; westbound access via exit 1; western end of I-470 overlap; I-435 exit 71A
1 I-435 north / I-49 south / US 71 / Red Bridge Road / Longview Road Joplin, Kansas City, Des MoinesExit numbers follow I-470; I-435 not signed eastbound; Red Bridge Rd./Longview Rd. not signed westbound; eastbound access to US 71 north via I-435 north
5.6529.0962Blue Ridge Boulevard
7.64512.3034Raytown Road
Kansas CityLee's Summit line8.92314.3605View High DriveRoad is in Lee's Summit, but western ramps are partially located in Kansas City
Lee's Summit10.20616.425 I-470 east St. Louis, Lee's SummitEastern end of I-470 overlap; eastbound left exit and westbound left entrance; I-470 exit 7A
10.63717.1197CPryor Road / Blue ParkwayEastbound exit and westbound entrance
I-470 east / Route 350 west St. LouisWestbound exits and eastbound entrances; left exit and entrance to Route 350; I-470 exit 7A
11.63418.723Chipman Road
12.81620.625SW 3rd Street
13.89322.359 Route 291 south HarrisonvilleWestern end of Route 291 overlap; diverging diamond roundabout interchange opened on May 11, 2018
14.65223.580 Route 291 northEastern end of Route 291 overlap
15.90325.593 Route RA
Blackwell RoadOpened in 2017 and completed in December 2017[4]
East end of freeway section
20.09632.341 Route 7Interchange
Lone Jack25.36140.815 Route 150 Lone JackInterchange
JohnsonPittsville35.61857.322 Route 131
45.89373.858 Route 58
US 50 Bus. east (W. Young Street)
Western terminus of US 50 Bus.
Route 13 Bus. (N. Maguire Street)
US 50 Bus. west (E. Young Street)
Half-diamond interchange; eastern terminus of US 50 Bus.
54.17087.178 Route 13Interchange
Knob Noster60.79297.835
US 50 Bus. east / Route 23
Interchange; western terminus of US 50 Bus.
US 50 Bus. west
Eastern terminus of US 50 Bus.
PettisLa Monte68.284109.892 Route 127
Sedalia79.031127.188 US 65 (Limit Avenue) Marshall, Warsaw
US 50 Spur / Route W south Smithton
Northern terminus of US 50 Spur
88.752142.832 Route 135 northWestern end of Route 135 overlap
Morgan91.102146.614 Route 135 southEastern end of Route 135 overlap
Syracuse100.849162.301 Route 5 north BoonvilleWestern end of Route 5 overlap
MoniteauTipton105.316169.490 Route 5 south / Route B north VersaillesEastern end of Route 5 overlap
US 50 Bus. east (West Buchanan Street) California
Western terminus of US 50 Bus.
California117.673189.376 Route 87 (Oak Street) Eldon, JamestownInterchange
US 50 Bus. west California
Eastern terminus of US 50 Bus.
ColeSt. Martins130.234209.591Kaylor Bridge RoadAt-grade intersection; west end of freeway
131.860212.208 Route D south / Route T north Lohman
133.983215.625Big Horn Drive
134.601216.619Kaylor Bridge RoadWestbound exit and eastbound entrance
Jefferson City135.937218.769W. Truman Boulevard / S. Country Club Drive
Route 179 (Commerce Drive) to US 50 Bus. east (Missouri Blvd) Jamestown
Western terminus of US 50 Bus. Access to SSM St. Mary's Hospital
138.956223.628Dix Road
US 63 north / US 54 Columbia, Fulton, Lake of the OzarksWestern end of US 63 overlap; no westbound access to US 54 west
US 50 Bus. west (Missouri Boulevard) to US 54 west
At-grade intersection; east end of freeway; eastern terminus of US 50 Bus.
Monroe StreetAt-grade intersection; west end of freeway
Lafayette StreetAccess to Lincoln University
141.762228.144Clark Avenue
142.915229.999Eastland Drive
144.557232.642E. McCarty Street
147.077236.697Militia Drive
Schubert148.887239.610 Route J east / Route M west Taos, Osage City
Osage152.214244.965 US 63 south RollaEastern end of US 63 overlap; east end of freeway
Loose Creek153.614247.218
US 50 Byp. east Loose Creek
Partial interchange; no eastbound entrance; western terminus of US 50 Byp.; connector road between US 50 eastbound and US 50 Byp. is Route A

US 50 Byp. west Loose Creek
Eastern terminus of US 50 Byp.
Linn160.352258.062 Route 100 east Chamois
162.196261.029 Route 89 south BelleWestern end of Route 89 overlap
165.540266.411 Route 89 north ChamoisEastern end of Route 89 overlap
Route 89 Spur north
GasconadeDrake185.294298.202 Route 19 north SwissWestern end of Route 19 overlap
185.887299.156 Route 19 south OwensvilleEastern end of Route 19 overlap
Rosebud192.166309.261 Route 28 west Owensville
FranklinBeaufort205.555330.809 Route 185
Union217.009349.242 Route 47 north WashingtonWestern end of Route 47 overlap
217.459349.966 Route 47 south St. ClairEastern end of Route 47 overlap
I-44 west St. Clair, SpringfieldWestern end of I-44 overlap; I-44 west exit 247
247 Route O to Route AT / US 50 west Union, Jefferson CityExit numbers follow I-44; eastbound exit only; provides travelers from I-44 EB with access to US 50 WB
226.398364.352251 Route 100 west WashingtonFormer US 66
228.202367.256253 BL I-44 east / Route 100 Gray Summit
Pacific231.670372.837256 BL I-44 PacificSigned as exit 257 westbound
St. LouisEureka236.418380.478261 BL I-44 west / Six Flags Road Six Flags
239.372385.232264 Route 109 Eureka
265Williams RoadEastbound exit and entrance
241.470388.608266Lewis Road
243.701392.199269Beaumont Antire Road
272 Route 141 Fenton, Valley Park
Fenton248.757400.336274ABowles AvenueSigned as exit 274 westbound
249.577401.655274BMraz LaneEastbound exit and westbound entrance
250.454403.067275North Highway Drive, Soccer Park RoadWestbound exit and eastbound entrance
Sunset Hills251.198–
276 I-270 Memphis, Chicago
251.757405.164277A Route 366 east (Watson Road)Eastbound exit and westbound entrance; former US 66
Sunset HillsKirkwood line252.520406.392 I-44 east / US 61 / US 67 north (Kirkwood Road)Eastern end of I-44 overlap; western end of US 61/US 67 overlap; I-44 exit 277B
Sunset Hills252.739–
Route 366 (Watson Road)Interchange
Sappington254.835410.117 Route 30
Green Park256.644413.028 Route 21
Green ParkMehlville line258.091–
I-55 to I-255 east / I-270 west St. LouisSPUI; I-55 exit 197
Mehlville258.756416.427 US 61 / US 67 south (Lemay Ferry Road south) / Route 267 north (Lemay Ferry Road north)Eastern end of US 61/US 67 overlap
259.110416.997 I-255 westWestern end of I-255 overlap; westbound left exit and eastbound left entrance; I-255 exit 1C
260.349418.9912 Route 231 (Telegraph Road)Exit numbers follow I-255
261.382420.6543Koch Road
Mississippi River261.382–
Jefferson Barracks Bridge
I-255 north / US 50 eastContinuation into Illinois
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. Federal Highway Administration, National Highway Planning Network GIS data version 2005.08
  2. Missouri State Highway Commission, Route Map Showing Designated Routes and Numbers, Approved September 19, 1922
  3. Missouri Department of Transportation (June 17, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved June 17, 2015.
  4. "Route 50 Blackwell". www.modot.org.
U.S. Route 50
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