How Highways are Numbered 🚗 U.S Interstate Highways 🇺🇸

How U.S. interstate highways are numbered? 🇺🇸 Dive into the fascinating system behind the numbering of U.S. interstate highways. 🚗 Discover how major interstate highways are labeled with two digits divisible by 5. Highways that stretch from east to west end in 0, ranging from I-10 to the longest, I-90. Meanwhile, north-south highways end in 5, with I-5 being a unique case where you can imagine a 0 before the 5. 😱 This clever system ensures easy navigation across the country, similar to how our ancestors navigated by the stars. The farther southwest you are, the lower the highway numbers, and as you move northeast, the numbers get higher. Highways ending in 0 indicate horizontal routes, while those ending in 5 indicate vertical routes. Additionally, the interstate minors, which are branches off the major highways marked with three-digit numbers. The last two digits match the major highway number. If the first digit is even, the branch loops back to the major highway; if it's odd, it doesn't reconnect. 🚀


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