[The federally–designated routes on the National Network consist of the Interstate System, except as noted, and the following additional Federal–aid Primary highways]
| Route | From | To |
|---|
| US 2 | MT State Line | MN State Line Grand Forks. |
| US 10 | I–94 W. Fargo | MN State Line. |
| US 12 | MT State Line Marmarth | SD State Line. |
| US 52 | I–94 Jamestown | Canadian Border. |
| US 81 | I–29 Manvel | I–29 Joliette. |
| US 83 | SD State Line | Canadian Border Westhope. |
| US 85 | SD State Line | Canadian Border Fortuna. |
| US 281 | SD State Line Ellendale | Canadian Border. |
| ND 1 | ND 11 Ludden | ND 13 S. Jct. |
| ND 5 | MT State Line | US 85 Fortuna. |
| ND 11 | US 281 Ellendale | ND 1 Ludden. |
| ND 13 | ND 1 S. Jct | MN State Line. |
| ND 32 | W Junction ofND Hwy 13 | I–94 |
| ND 68 | MT State Line | US 85 Alexander. |
| ND 200 | MT State Line | US 85 Alexander. |
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