Interstate 270 – Bethesda to Frederick – Maryland

Drive America’s Highways for 31 miles along Interstate 270 from Interstate 495 in Bethesda to Interstate 70 in Frederick, Maryland.

Join us as we leave the metro DC area and head northwest towards I-70 and Frederick on Interstate 270 (Washington National Pike). We start the video having just exited I-495 onto the I-270 spur, outside Bethesda. Driving generally northwest, we pass through Rockville and Gaithersburg before making a brief pitstop at a scenic overlook near the Monocacy National Battlefield. Leaving the overlook, we return to I-270 to finish the video a few miles northwest in Frederick.


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  1. John Foltz

    Escaping the chaos of I-270 in Montgomery county.

  2. Christopher Estep

    I've actually taken Interstate 270 twice. The first time was to connect with Interstate 70 at the Interstate 70/81 cloverleaf; the second time was over two decades later; then I got off at the Spaghetti Interchange in Frederick (Interstates 270 and 70, along with US 15, 340, and 40). One reason this is called the Spaghetti Interchange is that Interstate 270's end becomes US 15/340, which merge with it from their combined freeway after their merger in Maryland; if you want to go to either Charles Town Races in West Virginia OR toward MCI in Springs, MD (both of which are via US 340) from I-270, you use the cloverleaf to shift to US 15/340 south to US 340 west (after the two US routes split). US 340 itself post-split parallels the main tributary of the Potomac River in Maryland, Virginia, and West Virginia by turns; fortunately, none of the bridges (two of them in US 340's case) carries a toll!

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