Primary route
I-29
Kansas City to the Canadian border
About I-29
From Kansas City, MO (I-35/I-70) to Pembina, ND (Canada border)
Interstate 29 is a north-south route of about 752 miles running from Kansas City, Missouri, up the Missouri River valley and the eastern edge of the Great Plains to the Canadian border at Pembina, North Dakota. It crosses Missouri, Iowa, South Dakota, and North Dakota, paralleling the Red River of the North in its upper reaches. The route serves a string of plains cities and connects to the Canadian highway system.
From Kansas City the route follows the Missouri River through St. Joseph, Missouri, and Council Bluffs, Iowa, opposite Omaha, Nebraska. It continues north through Sioux Falls, South Dakota, and into North Dakota at Fargo and Grand Forks before reaching the border crossing at Pembina, where it connects with Manitoba Highway 75 toward Winnipeg.
The corridor runs through productive farmland and is subject to seasonal flooding along the Missouri and Red rivers, which has at times closed sections of the route. It carries agricultural freight and serves as the primary north-south spine of the eastern Dakotas and western Iowa.
State-by-state mileage
| State | Miles |
|---|---|
| Missouri | 128.7 |
| Iowa | 151.8 |
| South Dakota | 252.5 |
| North Dakota | 212.3 |
| Total | 745.3 |
History
I-29 was part of the Interstate plan approved in 1957 and was built through the 1960s along a corridor that follows the Missouri River valley and earlier US highways such as US 75. It gave the eastern Great Plains a continuous high-speed link from Kansas City to the Canadian border.
The northern terminus at Pembina was developed as a major border crossing, tying the route into the Canadian network toward Winnipeg.
Major cities and places
Notable features
- Missouri River valley corridor
- Pembina border crossing to Manitoba
Did you know
- Crosses four states from Kansas City to the Canadian border.
- Follows the Missouri River valley and the eastern edge of the Great Plains.
- Ends at Pembina, North Dakota, connecting to the route toward Winnipeg.
- Has two separate auxiliary routes numbered I-229, in St. Joseph and Sioux Falls.