# Loudoun County Parkway

The Loudoun County Parkway is a secondary state highway in eastern Loudoun County, Virginia. The southern portion is signed as State Route 606 from Braddock Road north to Old Ox Road, with the remainder signed as State Route 607.

## Route description
### South Riding and Arcola

Loudoun County Parkway begins at Braddock Road in South Riding and 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.

### 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. 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.

## Major intersections

The entire route is in Loudoun County.
| Location | mi | km | Destinations | Notes |
| South Riding | 0.0 | 0.0 | SR 620 (Braddock Road) / SR 613 south (Ticonderoga Road) | Southern terminus of SR 606 |
| Arcola | 2.1 | 3.4 | US 50 (John Mosby Highway) | |
| Arcola | 3.0 | 4.8 | Evergreen Mills Road (SR 621 west) | Eastern terminus of SR 621 |
| Arcola | 3.7 | 6.0 | SR 606 east (Old Ox Road) – Herndon | Route transition between SR 606 and SR 607; future intersection with SR 842 (Arcola Bouevard) |
| Brambleton | 4.8 | 7.7 | Creighton Road (SR 774 west) | Eastern terminus of SR 774 |
| ​ | 6.6 | 10.6 | Ryan Road (SR 772 west) | Eastern terminus of SR 772 |
| Ashburn | 8.2 | 13.2 | SR 267 Toll (Dulles Greenway) – Washington, Leesburg | Toll on ramp to SR 267 west and from SR 267 east; exit 7 on SR 267 |
| Ashburn | 8.5 | 13.7 | Shellhorn Road (SR 643 west) | Eastern terminus of SR 643 |
| Ashburn | 9.9 | 15.9 | SR 625 (Waxpool Road) | |
| Ashburn | 13.3 | 21.4 | SR 7 | SPUI with Harry Byrd Highway |
| Ashburn | 13.6 | 21.9 | George Washington Boulevard | Northern terminus of SR 607; to George Washington University Virginia Campus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Tolled Route transition |||||

## Plane Crash

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.