Interstate 29

Interstate 29 (abbreviated I-29) is an interstate highway in the Midwestern United States. It runs from Kansas City, Missouri at a junction with Interstate 35 and Interstate 70 to the Canadian border near Pembina, North Dakota, where it connects with Manitoba Provincial Highway 75 via the short Manitoba Provincial Highway 29.

Length


Miles	km
123	198	Missouri
161	259	Iowa
252	406	South Dakota
217	349	North Dakota

753	1,212	Total

Major cities

Bolded cities are officially-designated control cities for signs.

Kansas City, Missouri
St. Joseph, Missouri
Mound City, Missouri
Council Bluffs, Iowa
Sioux City, Iowa
Sioux Falls, South Dakota
Fargo, North Dakota
Grand Forks, North Dakota
Winnipeg, Manitoba (via Manitoba Highway 75)

Intersections with other interstates

Spur routes

Business Loop 29

Saint Joseph, Missouri

Notes

Near its southern terminus, I-29 is multiplexed with I-35 and U.S. Highway 71. The interstate diverts from 71 just north of St. Joseph and follows a sparsely populated corridor in the Missouri River bottoms to Council Bluffs. During the design phase there was an alternative sending the route further along 71 through the bigger towns of Maryville, Missouri and Clarinda, Iowa. During the Great Flood of 1993 the Missouri River flooded this section and traffic was rerouted to 71 through Maryville and Clarinda.

Almost all of I-29 in Missouri is an area called the Platte Purchase that was not originally part of Missouri when it entered the union.

At its northern terminus, I-29 is multiplexed with U.S. Highway 81.

I-29 and its successor in Manitoba, MB Provincial Route 75 provide a direct route into Winnipeg.