| Trunk Highway 3 | ||||
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| Route information | ||||
| Maintained by Mn/DOT | ||||
| Length: | 43.749 mi (70.407 km) | |||
| Existed: | 1963 – present | |||
| Major junctions | ||||
| South end: |
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| North end: |
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| Location | ||||
| Counties: | Rice, Dakota | |||
| Highway system | ||||
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MN 19 / MN 246 at Northfield
MN 50 at Farmington
CSAH 42 at Rosemount
MN 149 at Inver Grove Heights
MN 55 at Inver Grove Heights