U. S. Highway 12

 

Detroit, Michigan – Aberdeen, Washington
Current Mileage: 2448

U.S. 12 is one of the original 1926 highways. The highway was rerouted in the late 1950’s when the Wyoming portion and part of the Montana portion was eliminated.

U.S. 12’s current route travels through 10 states and has been in place since 1967:

  • Michigan – 197 Miles
  • Indiana – 39 Miles
  • Illinois – 88 Miles
  • Wisconsin – 345 Miles
  • Minnesota – 196 Miles
  • South Dakota – 317 Miles
  • North Dakota – 87 Miles
  • Montana – 562 Miles
  • Wyoming – Decommissioned
  • Idaho – 173 Miles
  • Washington – 444 Miles