Here's why Houston's Interstate 610 is called '610'

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View in browser   Explainer Here's why Houston's Interstate 610 is called '610' Have you ever wondered what the "610" in Interstate 610 means? Just me?  It turns out to be more sophisticated than I thought. Knowing how to crack this highway code could be your next party trick. Read More » Unsubscribe  |  Manage Preferences  |  Privacy Notice Chron.com 4747 Southwest Freeway, Houston, TX 77027 © 2021 Hearst Communications