View southwest along SR 606 (Loudoun County Parkway) in Arcola from an airplane
Loudoun County Parkway begins at Braddock Road in South Riding. It then has an intersection with Tall Cedars Parkway. Then, Riding Center Drive, which takes you to Freedom High School. The road then continues north across U.S. Route 50. The parkway continues north along the western boundary of Washington Dulles International Airport to the intersection of Old Ox Road. The road now goes north towards Loudoun Valley Estates in Ashburn. The parkway then heads north towards Ryan Road.[2]
View northeast approaching the transition between SR 606 and SR 607 in Arcola
Brambleton and Ashburn
At Old Ox Road, SR 606 transitions onto Old Ox Road and the SR 607 designation begins for the Loudoun County Parkway.[1] The parkway continues north to a partially-tolled interchange with the Dulles Greenway. The parkway heads north over the Greenway, and past the Verizon campus. After crossing Waxpool Road, the parkway continues north through corporate centers and Redskins Park. This section was once called Panorama Parkway. Until 2006, the section from Smith Switch Road to State Route 7 was an unpaved dirt road, but was rebuilt in 2006 as a four-lane divided highway as part of the Route 28 Improvement Project. As of 2012, Smith Switch Road no longer intersects directly with Loudoun County Parkway; instead it runs into the extension eastward of Gloucester Parkway that intersects Loudoun County Parkway. The parkway meets SR 7 (Leesburg Pike) at an unnumbered SPUI interchange. Just north of there, the parkway terminates at an intersection with George Washington Boulevard, which serves the George Washington University Virginia Campus. The roadway continues as Riverside Parkway, which parallels SR 7 on its north side west towards Leesburg.[1]
Major Construction Projects
Until 2017, a large gap existed in Loudoun County Parkway between Evergreen Ridge Drive in Ashburn, and Arcola Mills Drive(formerly Evergreen Mills Road), in Arcola. The road was constructed between these roads and opened in 2017, which created new intersections with Creighton Road, Evergreen Mills Road(formerly Shreveport Drive), Arcola Mills Drive(formerly Evergreen Mills Road), and a new interchange/signalized intersection with Old Ox road. This project also widened the road south of Old Ox Road to three lanes on the southbound side, and widened Old Ox Road(Route 606) to two lanes on both sides. In 2023, Loudoun County Parkway was widened from 4 to 6 lanes between Ryan Road and Shellhorn Road in Ashburn.
On January 19, 2024, Southern Airways Express Flight 246 took off from Dulles International Airport and was on its way to Lancaster Airport (Pennsylvania) when it made an emergency landing due to bad weather. None of the 7 people onboard were killed or injured. The plane struck a guardrail as it performed an emergency landing. There was a snowstorm the day of, which caused the bad weather mentioned. The incident was covered by many local news outlets.[3]
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SR 606 from South Riding to Arcola
SR 607 from Arcola to Ashburn
SR 620 / SR 613 in South Riding 
US 50 in Arcola 
SR 267 Toll in Ashburn 
SR 7 in Ashburn
