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Location/Directions

From Washington D.C.'s National Airport (395)

  1. Follow signs for 395 North – Washington: you will be on the George Washington Parkway toward Washington, D.C.
  2. Take exit for 395 North – Washington. Keep to the right and continue to follow signs for 395 North. Take the exit on the right for L'Enfant Promenade.
  3. Stay to the right, following signs for L'Enfant Promenade.
  4. At the bottom of the exit ramp, continue to the right at the stop sign (this will put you onto D Street Southwest). Stay on D Street (in the left lane), and just beyond the first traffic light, IMMEDIATELY, make a left turn into the underground parking garage of the Aerospace Center Building located at 901 D Street Southwest.

From Dulles Airport

  1. Take Dulles Access Road (Route 267) to I-495 South.
  2. Take I-66 East, toward Washington D.C.
  3. See Alternate if you're driving Eastbound from 6:30am - 9:30am, and Westbound from 3:30pm - 6:30pm. I-66 is a High Occupancy Vehicle (HOV) road during those peak hours and HOV cars must have at least 3 passengers or face a possible fine of $75.00.
  4. After crossing the Potomac River, I-66 becomes Constitution Avenue. Stay on Constitution Avenue. Make a right-turn onto 7th Street.
  5. Stay on 7th Street. Make a right-turn onto D Street SW. Our offices are in a gray, ten-story modern building on the right side of the second block (901 D Street SW).
  6. Turn right into the Parking Garage located underground of the Aerospace Center Building, located at 901 D Street Southwest.

From the L'Enfant Metro Station

  1. Come up the Metro Stairs and exit the Metro Station using the "9th & D Street SW" or "L'Enfant Plaza" exits only.
  2. For more Metro Transit information, including a map of Metro routes, please visit the Washington Metropolitan Area Transit Authority website.