U.S. Route 12 – 2,483 Miles
U.S. Route 12 (US 12) spans across the United States as a significant east-west highway, stretching nearly 2,483 miles from Aberdeen, Washington to Detroit, Michigan. Established in 1926, US 12 traverses through Idaho, Montana, the Dakotas, Minnesota, Wisconsin, Illinois, and Indiana. Notably, in Washington alone, US 12 extends for 430.8 miles (693.3 km), ranking as the state’s second-longest highway. Although portions of US 12 have been supplanted by Interstates 90 and 94, it remains vital for local and regional travel networks.
U.S. Route 12 – 2,483 Miles |
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Length |
2,483 Miles |
Start Point |
Aberdeen, Washington |
End Point |
Detroit, Michigan |
States Crossed |
Washington, Idaho, Montana, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Michigan |
Completion Year |
Portions completed between 1926 and 1932, with continuous completion over subsequent years |
Notable Features |
Mount Rainier National Park (Washington), Yellowstone National Park (Wyoming), Mississippi River crossing (Minnesota), Chicago (Illinois), Detroit (Michigan) |
Top 10 Longest Highways in the USA
Top 10 Longest Highways in the USA: US Route 20 is the longest road in the United States. It is part of the larger US Numbered Highway System. US Route 20 is an important highway system of the Federal-Aid Highway Act of 1956 aka the Dwight D. Eisenhower National System of Interstate and Defense Highways. This highway covers around 41,000 miles across the country, with Route 20 alone. This highway is 3,365 miles long and passes through 12 states: Oregon, Idaho, Montana, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, Pennsylvania, New York, and Massachusetts.
In this article, we are going to discuss the Top 10 Longest Highways in the USA in detail.
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Table of Content
- Top 10 Longest Highways in the USA – Overview
- 10. U.S. Route 12 – 2,483 Miles
- 9. I-40 – 2,555 Miles
- 8. U.S. Route 2 – 2,580 Miles
- 7. U.S. Route 60 – 2,670 Miles
- 6. I-80 – 2,899 Miles
- 5. U.S. Route 50 – 3,011 Miles
- 4. U.S. Route 30 – 3,073 Miles
- 3. I-90 – 3,102 Miles
- 2. U.S. Route 6 – 3,207 Miles
- 1. U.S. Route 20 – 3,365 Miles
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