![]() NPS Construction efforts to rehabilitate the George Washington Memorial Parkway (GWMP) are underway between I-495 and Spout Run Parkway. Construction activities will impact drivers and park visitors for the duration of the rehabilitation. View construction updates under Current Construction. The roadwork is anticipated to be completed in late 2025.
Rehabilitation Progress Along the Parkway Crews continue to make progress on rehabilitation work daily. As of Summer 2025:
![]() NPS Current Construction (Updated August 2025)I-495 to Route 123
Lane Configuration: I-495 to North of Route 123
The three-lane configuration extends from I-495 to north of Route 123 through mid-August. The reversible lane schedule is as follows: Weekday morning rush hour (5:30 a.m. – 9:30 a.m.)
![]() NPS This month, the NPS will continue temporary lane closures between I-495 and Route 123 to remove barriers along the northbound lanes. The closure schedule and details are listed below: Northbound Lane Closure Schedule: Route 123 to I-495
Detour Information: Motorists traveling northbound must exit at Route 123 and follow detour signs to reach I-495 north towards Maryland as shown on the detour map. The exit to and from Turkey Run Park will be closed from northbound George Washington Memorial Parkway (GWMP) during these weekend closures. During this time, visitors should follow the detour to northbound I-495 and proceed to southbound GWMP to access Turkey Run Park. ![]() NPS One southbound lane remains closed for construction through 2025. There will be no reversible lane in this section of the parkway. View below for construction details in each segment.
August Lane Closure Schedule: Route 123 to Spout Run Parkway In this segment of the parkway, there will be both southbound and northbound lane closures on select weekends for barrier relocation and asphalt paving:Route 123 to Spout Run Southbound Lane Closure Schedule Continued
Detour Information: All southbound GWMP traffic must use the southbound GWMP ramp to Route 123 and follow detour signs to Spout Run Parkway to re-enter southbound GWMP toward Washington D.C. One northbound lane on GWMP will stay open. ![]() NPS Parkway Closure Weekend of August 16 During the weekend of August 16, the NPS will temporarily close the northbound and southbound lanes between Spout Run Parkway and Route 123. The closure schedule and details are listed below: Route 123 to Spout Run Parkway Closure Schedule: From 7 a.m. on Saturday, August 16 until 6 p.m. on Sunday, August 17 Northbound Parkway Detour Information: There will be no northbound travel lanes from Spout Run Parkway to the I-495 interchange. Motorists traveling northbound must exit at Spout Run Parkway and follow detour signs to Glebe Road to Route 123. From Route 123, motorists will continue to follow signs to reach I-495 north as shown on the detour map. Southbound Parkway Detour Information: All southbound GWMP traffic must use the southbound GWMP ramp to northbound Route 123 and follow detour signs to Spout Run Parkway to re-enter southbound GWMP toward Washington D.C. ![]() Crews will close the ramp from the southbound GWMP to westbound Route 123 and from westbound Route 123 to southbound GWMP starting August 11 through mid-September, weather permitting. Crews will demolish these two existing ramps and construct two new ramps to improve safety and access between Route 123 and southbound GWMP. Starting August 11, motorists can use the following detours:
![]() ![]() NPS Route 123 to Windy Run Bridge Crews have closed the left southbound lane for construction including:
NPS Construction in the left southbound lane continues including:
![]() NPS Bridge ConstructionCrews continue with bridge work:
All work is weather permitting. In the event of inclement weather, work will be rescheduled. Any changes in the closure schedule above will be reflected on this page. Construction Zone Safety Please slow down and be cautious while driving through work zones on the parkway. To increase safety, small physical barriers divide the narrow travel lanes. Commercial vehicles are restricted from the parkway at all times. Signage will direct drivers to the appropriate lanes. During non-rush hour periods, weekends, and holidays, the center reversible lane will be closed, and motorists can expect two travel lanes: one traveling northbound and one traveling southbound.
Frequently Asked Questions (FAQs) This project is the reconstruction of approximately 7.6 miles of the northern section of the GWMP between Spout Run and the I-495/Capital Beltway in Fairfax and Arlington counties, Virginia. This project will improve the driving experience, safety, and water drainage while retaining and enhancing the historic beauty and culture of the parkway.
This rehabilitation includes:
This project is the first rehabilitation in this section of parkway since it was completed in 1962. Once completed, this historic parkway will continue to provide a safe, scenic, and smooth experience for those who are using it to connect to our nation’s history or as a way to get to and from our nation's capital. The National Park Service (NPS), in partnership with the Federal Highway Administration Eastern Federal Lands Highway Division (FHWA - EFLHD), continue the process of rehabilitating the northern section of the George Washington Memorial Parkway (GWMP).
The northern section of the GWMP, between Spout Run to I-495/Capital Beltway, is the busiest section of the parkway and serves about 26 million drivers annually. It is a four-lane divided scenic parkway that is listed on the National Register of Historic Places and serves as a major commuter route between northern Virginia and Washington, D.C., carrying roughly 70,000 vehicles per day. It also provides access to several recreational and historic sites along the roadway. The physical roadway is reaching the end of its lifespan in the northern part of the parkway. NPS wants to rehabilitate the historic parkway to provide a safe and scenic experience while extending its lifespan. This project will repair and rehabilitate deteriorating aspects of the roadway as well as implement safety improvements while preserving the cultural and historical characteristics of the parkway.
Construction activities began in August 2022. The project is anticipated to be completed in late 2025. In September 2018, the NPS achieved a major milestone project by completing an environmental review completed for the rehabilitation. The NPS completed an Environmental Assessment and analyzed public comments before deciding how best to rehabilitate the north section of the parkway.
The National Park Service's preferred alternative for the is intersection is to consolidate Route 123 on-ramps to southbound GWMP at a new intersection east of Pine Tree Road (modified diamond interchange). Conceptual map is depicted below. ![]() North Parkway News |
Last updated: August 6, 2025