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| | Facts about the Wisconsin Interstate system - Department of Transportation |
 | | I-90 is the nation's longest Interstate highway (3,021 miles) and passes through 12 states: Washington, Idaho, Montana, Wyoming, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Ohio, Pennsylvania, New York and Massachusetts. |
 | | The shortest two-digit Interstate in the nation is the 12-mile I-73 between Emery and Greensboro, North Carolina. |
 | | Three-digit Interstate highway numbers represent bypasses or spurs attached to a primary Interstate highway and carry the numbers of the adjacent "parent" Interstate (I-794 and I-894 in Milwaukee). |
| www.dot.wisconsin.gov /library/history/50/facts.htm (1586 words) |
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