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Interstate 66 facts for kids

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Interstate 66
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Route information
Length 76.28 mi (122.76 km)
Major junctions
West end I-81 in Middletown, VA
  US 340 / US 522 near Front Royal, VA
US 17 near Warrenton, VA
US 15 in Haymarket, VA
SR 234 in Bristow, VA
US 50 near Fairfax, VA
I-495 in Dunn Loring, VA
SR 267 near Falls Church, VA
East end US 29 in Washington, D.C.
Highway system
Main route of the Interstate Highway System
Main • Auxiliary • Business

Interstate 66 (often called I-66) is a major highway in the United States. It is part of the Interstate Highway System, which connects cities across the country. This road helps people travel easily between places.

I-66 starts in Middletown, Virginia, in the western part of the state. It then travels east, going through several towns and counties. The highway ends in Washington, D.C., the nation's capital. The entire route is about 76.28 miles (122.76 kilometers) long.

Traveling on I-66

Interstate 66 is a very busy road, especially for people commuting to and from Washington, D.C. It passes through important areas in Virginia. These include Front Royal, Virginia, Warrenton, Virginia, and Fairfax, Virginia.

Connecting to Other Roads

I-66 connects with many other important highways. In Middletown, it links up with Interstate 81. Near Washington, D.C., it crosses Interstate 495, also known as the Capital Beltway. These connections help drivers reach many different destinations.

Using the Highway

Like many major highways, I-66 has special lanes. Some sections have "HOV" (High Occupancy Vehicle) lanes. These lanes are for cars with multiple passengers. This helps reduce traffic and encourages carpooling. There are also projects to improve the highway. These projects aim to make travel smoother and faster for everyone.

Images for kids

  • 2019-06-06 17 15 45 View north along Interstate 81 at Exit 300 (Interstate 66 EAST, Front Royal, Washington) in Warren County, Virginia

    I-66's western starting point in Middletown, Virginia, where it meets I-81.

  • 2016-10-02 07 18 48 View east along the E Street Expressway between Interstate 66 (Potomac River Freeway) and 23rd Street NW in Washington, D.C.

    A view looking east along the E Street Expressway, just past I-66.

  • Interstate 66

    This picture from 2006 shows I-66 in Fairfax County, Virginia. You can see the Metrorail Orange Line trains in the middle of the highway. The left lane was for HOV, and the right shoulder was used as a regular lane during busy times. This part of the road is being made wider.

  • 2018-10-25 13 28 25 View east along Interstate 66 (Custis Memorial Parkway) from the overpass for North Scott Street in Arlington County, Virginia

    Looking east on I-66 near Scott Street in Arlington.

  • I-66 and US 50 Arlington

    How to get onto I-66 going west in Rosslyn, Arlington County, Virginia.

  • 2016-10-28 12 08 38 View east along Interstate 66 just east of Exit 52 (U.S. Route 29 to Virginia State Route 28 South, Centreville) in Centreville, Fairfax County, Virginia

    I-66 heading east, past the exit for US 29 in Centreville.

  • 2016-10-02 07 50 38 View north along U.S. Route 29 (west along the Whitehurst Freeway and K Street) at the eastern end of Interstate 66 (Potomac River Freeway) in Washington, D.C.

    A view looking "west" (which is actually south) at the end of I-66, where it meets US 29 in Washington, D.C.

  • 2018-10-25 13 51 18 View west along Interstate 66 (Potomac River Freeway) from the overpass for Triangle Park-Virginia Avenue-New Hampshire Avenue-25th Street in Washington, D.C.

    The Potomac River Freeway, which is part of I-66, in Washington, D.C.

  • I66toscale

    A map of I-66, showing the cities it passes through and where it connects with I-81 and I-495.

See also

Kids robot.svg In Spanish: Interestatal 66 para niños

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