From Downtown Washington, D.C. (the Ronald Reagan Building)
Exit onto 14th Street and take a left. Take a right onto Constitution Avenue. Cross the Roosevelt Bridge to I-66 West. Take I-66 West to Route 28 and exit toward Dulles Airport. Go to the 2nd Route 50 exit toward Winchester (Route 50 is also called Lee Jackson Hwy). Once on Route 50, go to your 4th traffic light and take a left onto Pleasant Valley Drive. Take your next left onto Lafayette Center Drive. You will see a sign that says "Enterprise Center" in front of the ICRC building on the left hand side.

From I-495
Take I-66 West to Route 28 and exit toward Dulles Airport. Go to the 2nd Route 50 exit toward Winchester (Route 50 is also called Lee Jackson Hwy). Once on Route 50, go to your 4th light and take a left onto Pleasant Valley Drive. Take your next left onto Lafayette Center Drive. You will see a sign that says "Enterprise Center" in front of the ICRC building on the left hand side.

From Dulles Access Road
Take the Dulles Access Road to the Sully Road exit, Route 28, and exit south on Sully Road (Route 28). Proceed about 4 miles and go to the 1st Route 50 exit toward Winchester (Route 50 is also called Lee Jackson Hwy). Once on Route 50, go to your 4th light and take a left onto Pleasant Valley Drive. Take your next left onto Lafayette Center Drive. You will see a sign that says "Enterprise Center" in front of the ICRC building on the left hand side.