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*How National Highways are Numbered in the USA | Understanding the U.S. Highway Numbering System*

Ever wondered how national highways are numbered in the United States? In this video, we delve into the fascinating *U.S. Highway Numbering System* to explain how *Interstate Highways* and *U.S. Routes* are organized across the country. Learn why even-numbered highways run east-west, odd-numbered highways run north-south, and what those three-digit numbers really mean. Whether you're a road trip enthusiast, geography buff, or simply curious about the logic behind America's **highway numbering**, this comprehensive guide will answer all your questions.

*Key Points Covered:*
**History of U.S. Highway Numbering**: How it all started
**Interstate vs. U.S. Routes**: Differences and numbering patterns
**Odd and Even Numbers**: Directional significance
**Three-Digit Highways**: Understanding auxiliary routes
**Highway Numbering Exceptions**: Unique cases and why they exist

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*Related Content:*
[The History of the U.S. Interstate System](#)
[Top 10 Longest Highways in the USA](#)
[How to Navigate U.S. Highways Like a Pro](#)

*#USHighways #HighwayNumbering #RoadTripUSA*

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U.S. Highway Numbering System
How U.S. highways are numbered
National highway numbering in the USA
Interstate numbering system
U.S. Route numbering
How American highways are organized
East-west and north-south highways
Understanding highway numbers
Three-digit highways explained
American road system

Meta Description:
"Learn how national highways are numbered in the USA! Discover the logic behind the U.S. Highway Numbering System, including the differences between Interstates and U.S. Routes, and what those numbers really mean."

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