<Table> <Tr> <Th_colspan="2"> <P> </P> U.S. Route 81 </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Route information </Th> </Tr> <Tr> <Th> Length </Th> <Td> 1,220 mi (1,963 km) </Td> </Tr> <Tr> <Th> Existed </Th> <Td> 1926, truncated northward in the 1990s--present </Td> </Tr> <Tr> <Th_colspan="2"> Major junctions </Th> </Tr> <Tr> <Th> South end </Th> <Td> I - 35W / US 287 at Fort Worth, TX </Td> </Tr> <Tr> <Th> </Th> <Td> I - 44 at Chickasha, OK I - 40 at El Reno, OK I - 135 from Wichita, KS to Salina, KS I - 70 near Salina, KS I - 80 at York NE I - 90 at Salem, SD I - 29 from Watertown, SD to Manvel, ND I - 94 at Fargo, ND US 2 at Grand Forks, ND I - 29 from Joliette, ND to Pembina, ND </Td> </Tr> <Tr> <Th> North end </Th> <Td> I - 29 / PTH 75 at Pembina--Emerson Border Crossing near Pembina, ND </Td> </Tr> <Tr> <Th_colspan="2"> Location </Th> </Tr> <Tr> <Th> States </Th> <Td> Texas, Oklahoma, Kansas, Nebraska, South Dakota, North Dakota </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> Highway system </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> United States Numbered Highway System </Li> </Ul> <Ul> <Li> List </Li> <Li> Special </Li> <Li> Divided </Li> <Li> Replaced </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> <P> </P> U.S. Route 81 </Th> </Tr> <Tr> <Th_colspan="2"> Route information </Th> </Tr> <Tr> <Th> Length </Th> <Td> 1,220 mi (1,963 km) </Td> </Tr>

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