# Interstate 29 in Missouri

Interstate 29 (I-29) is a north–south Interstate Highway in the Midwestern United States that begins in Missouri. It travels through the Kansas City and St. Joseph metropolitan areas before exiting the state and entering Iowa. Almost all of I-29 in Missouri lies in an area called the Platte Purchase that was not originally part of Missouri when the state entered the Union in 1821.

## Route description

I-29 begins at I-70 in Kansas City in a concurrency with I-35 and U.S. Route 71 (US 71) at the Downtown Loop. It crosses over the Missouri River via the Bond Bridge. I-29 and I-35 separate in northern Kansas City, with I-29 turning northwest with US 71 running concurrent with it. It passes near Kansas City International Airport and near there is concurrent with I-435. I-29 then exits the Kansas City area. It enters the eastern portion of St. Joseph while downtown St. Joseph is served by I-229, a loop of I-29. After exiting St. Joseph, US 71 separates from I-29. I-29 then passes through rural areas of northwestern Missouri on a southeast-to-northwest alignment, then crosses into Iowa north of Rock Port, approximately 55 miles (89 km) south of Council Bluffs.

## History

I-70 east to I-435 south was alternate a via route for traffic to void the 3 at-grade crossings.
During the 2019 Midwestern US floods, I-29 in Missouri was closed to traffic in both directions from St. Joseph to Council Bluffs, Iowa when the highway got flooded. It reopened to traffic by October 2019.

## Exit list

| County | Location | mi | km | Exit | Destinations | Notes |
| Jackson | Kansas City | 0.000– 0.185 | 0.000– 0.298 | | I-35 south / I-70 / US 24 west / US 40 west – Wichita, Topeka | Downtown Loop; MoDOT signs this as the national southern terminus; southern end of I-35 and US 24 overlaps; I-70 exit 2G-H |
| Jackson | Kansas City | 0.000– 0.185 | 0.000– 0.298 | 2F | Oak Street / Grand Avenue / Walnut Street | Northbound access via exit 2E; no northbound entrance; no access to this exit from I-70 westbound |
| Jackson | Kansas City | 0.000– 0.185 | 0.000– 0.298 | 2H | Admiral Boulevard Route 9 north – North Kansas City US 24 Bus. (Independence Avenue) | Exit numbers follow I-35; former northern end of US 24 overlap; northbound exit and southbound entrance. Access to Kansas City University School of Medicine and Biosciences. |
| Jackson | Kansas City | 0.000– 0.185 | 0.000– 0.298 | 2J | 11th Street Downtown | Southbound exit and northbound entrance |
| Jackson | Kansas City | 0.000– 0.185 | 0.000– 0.298 | 3 | I-70 east / US 24 east / US 40 east / US 71 south – St. Louis, Joplin | Southern end of US 71 overlap; southbound left exit and northbound entrance; I-70 exit 2G; US 71 heads south to the Grandview Triangle; I-70 heads east to I-435 in Kansas City |
| Jackson | Kansas City | 0.530 | 0.853 | 4A | The Paseo (Independence Avenue) to US 24 Bus. | Southbound left exit and northbound entrance |
| Jackson | Kansas City | 1.077 | 1.733 | 4B | Front Street / Grand Boulevard | Signed as exit 4 northbound |
| Missouri River | Missouri River | 1.282– 1.569 | 2.063– 2.525 | Christopher S. Bond Bridge | Christopher S. Bond Bridge | Christopher S. Bond Bridge |
| Clay | North Kansas City | 1.616 | 2.601 | 5A | Levee Road | Southbound exit and northbound entrance; signed as exit 5 southbound |
| Clay | North Kansas City | 1.668 | 2.684 | 5A | Bedford Street | Northbound exit and southbound entrance |
| Clay | North Kansas City | 2.418 | 3.891 | 5B | 16th Avenue | Northbound exit and southbound entrance |
| Clay | North Kansas City | 2.996– 3.015 | 4.822– 4.852 | 6 | Route 210 east (Armour Road) | Access to North Kansas City Hospital |
| Clay | Kansas City | 4.546 | 7.316 | 8A | Parvin Road | |
| Clay | Kansas City | 4.614 | 7.426 | 8B | I-35 north – Des Moines | Northern end of I-35 overlap; northbound exit and southbound left entrance; exit numbers follow I-29 |
| Clay | Kansas City | 5.040 | 8.111 | 1A | Davidson Road | |
| Clay | Kansas City | 5.094 | 8.198 | 1B | I-35 north – Des Moines | Southbound exit and northbound entrance; I-35 exit 8B |
| Clay | Kansas City | 6.112 | 9.836 | 1C | Route 283 south (Oak Trafficway) | Split into exits 1C (north) and 1D (south) SB; signed as "North Oak Trfwy." only NB. Access to Midwestern Baptist Seminary. |
| Clay | Kansas City | 6.584 | 10.596 | 1E | US 69 (Vivion Road) | |
| Clay | Kansas City | 6.986– 7.080 | 11.243– 11.394 | 2 | US 169 – Smithville | Access to Downtown Kansas City and Smithville Lake; Signed as exits 2A (north) and 2B (south); no access to US-169 SB from I-29 NB |
| Platte | Kansas City | 7.890 | 12.698 | 3A | Route AA (NW Waukomis Drive) | Northbound exit and southbound entrance only |
| Platte | Kansas City | 8.284 | 13.332 | 3C | Route A (NW Gateway Drive) | Southbound exit and northbound entrance only |
| Platte | Kansas City | 8.264– 8.494 | 13.300– 13.670 | 3B | I-635 south – Kansas | Left exit northbound; I-635 exits 12A-B |
| Platte | Kansas City | 8.847 | 14.238 | 4 | NW 56th Street | Northbound exit and southbound entrance only |
| Platte | Kansas City | 10.226 | 16.457 | 5 | Route 45 north (NW 64th Street) | |
| Platte | Platte Woods | 11.420 | 18.379 | 6 | NW 72nd Street – Platte Woods | |
| Platte | Kansas City | 13.019 | 20.952 | 8 | To Route 9 (Northwest Barry Road) – Parkville | Access to National American University and St. Luke's North Hospital |
| Platte | Kansas City | 13.543– 13.565 | 21.795– 21.831 | 9 | Route 152 – Topeka, Liberty | Signed as exits 9A (east) and 9B (west); exit 9 northbound |
| Platte | Kansas City | 15.002 | 24.143 | 10 | Tiffany Springs Parkway / Ambassador Drive | Ambassador Drive not signed southbound; diverging diamond interchange |
| Platte | Kansas City | 16.800 | 27.037 | 12 | NW 112th Street | |
| Platte | Kansas City | 17.818 | 28.675 | 13 | To I-435 east (Route D) – Kansas City International Airport, St. Louis | |
| Platte | Kansas City | 18.466– 18.702 | 29.718– 30.098 | 14 | I-435 east – St. Louis | Southern end of I-435 overlap; northbound exit is via exit 13; Southbound Exit/Northbound entrance |
| Platte | Kansas City | 19.635 | 31.599 | 15 | Mexico City Avenue | |
| Platte | Platte City | 21.499– 22.394 | 34.599– 36.040 | 17 | I-435 south – Topeka | Northern end of I-435 overlap |
| Platte | Platte City | 22.856 | 36.783 | 18 | Route 92 – Platte City, Weston, Leavenworth, Smithville | |
| Platte | Platte City | 24.020 | 38.656 | 19 | Route HH (Main Street) | |
| Platte | Fair Township | 25.567 | 41.146 | 20 | Route 273 north / Route 371 – Tracy, Weston | |
| Platte | Green Township | 30.090 | 48.425 | 25 | Route E / Route U – Camden Point | |
| Platte | Dearborn | 34.626 | 55.725 | 30 | Route H / Route Z – New Market, Dearborn | |
| Buchanan | Crawford Township | 40.363 | 64.958 | 35 | Route DD – Faucett | |
| Buchanan | Washington Township | 47.503– 48.057 | 76.449– 77.340 | 43 | I-229 north – Downtown St. Joseph | |
| Buchanan | St. Joseph | 48.941 | 78.763 | 44 | US 169 / I-29 BL north – St. Joseph, Gower | |
| Buchanan | St. Joseph | 50.448– 50.908 | 81.188– 81.928 | 46 | US 36 – St. Joseph, Cameron | Signed as exits 46A (east) and 46B (west) |
| Buchanan | St. Joseph | 52.599 | 84.650 | 47 | Route 6 (Frederick Boulevard) – Clarksdale | |
| Buchanan | St. Joseph | 55.288 | 88.977 | 50 | US 169 – St. Joseph, King City | |
| Andrew | Jefferson Township | 58.363 | 93.926 | 53 | US 59 south / I-29 BL south / US 71 Bus. north – St. Joseph, Savannah | Southern end of US 59 overlap |
| Andrew | Jefferson Township | 61.369– 61.921 | 98.764– 99.652 | 56 | I-229 south / US 59 north / US 71 north – Maryville | Northern end of US 59 and US 71 overlaps; signed as exits 56A (north) and 56B (south) |
| Andrew | Lincoln Township | 64.774 | 104.244 | 60 | Route CC / Route K – Amazonia | |
| Andrew | Jackson Township | 69.954 | 112.580 | 65 | US 59 south / Route RA / Lewis and Clark Trail – Fillmore, Savannah | Southern end of US 59 overlap |
| Holt | Nodaway Township | 72.187 | 116.174 | 67 | US 59 north / Lewis and Clark Trail – Oregon | Northern end of US 59 overlap |
| Holt | Hickory Township | 80.321 | 129.264 | 75 | US 59 – Oregon | |
| Holt | Benton Township | 83.844 | 134.934 | 79 | US 159 – Rulo | |
| Holt | Mound City | 88.804 | 142.916 | 84 | Route 118 – Mound City | |
| Holt | Union Township | 96.924 | 155.984 | 92 | US 59 – Craig, Fairfax | |
| Holt–Atchison county line | Lincoln–Clark township line | 103.902 | 167.214 | 99 | Route W – Corning | |
| Atchison | Clay Township | 112.453 | 180.976 | 107 | Route 111 – Langdon, Rock Port | |
| Atchison | Rock Port | 115.410 | 185.734 | 110 | US 136 – Rock Port | |
| Atchison | Nishnabotna Township | 120.636 | 194.145 | 116 | Route A / Route B – Watson | |
| Atchison | Nishnabotna Township | 128.710 | 207.139 | | I-29 north / Lewis and Clark Trail – Council Bluffs | Continuation into Iowa |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access |||||||

## Auxiliary route

I-29 has one auxiliary route in Missouri:
* I-229: A bypass around the west side of St. Joseph