George Washington Memorial Parkway

Northbound GWMP Lane Closures Between Spout Run and Route 123 Extended: Northbound lanes between Spout Run Parkway and Route 123 will close Mondays through Thursdays  from 9:30 a.m. to 2:30 p.m.  from Aug. 10 – Sept. 17 for tree maintenance. Southbound lane closures will begin on Sept. 21 and last until Oct. 29. Details open_in_new

Temporary Closure of Right Lane of Clara Barton Parkway: Temporary Closure of the Clara Barton Parkway Right Lane at Site 17, wooded areas between C&O Canal and Lock 10 parking lot, north to Lock 14, required to address ongoing safety concerns from DC Water emergency sanitary sewer overflow & bypass and pipe repair operations. Click on Details open_in_new

Detour along Mount Vernon Trail at Gravelly Point: Due to constriction for the Long Bridge Project, the Mount Vernon Trail will be temporarily detoured around the construction zone beginning on July 15, 2026. Trail users should expect periodic crossings of equipment and materials where the trail meets the construction access road Details open_in_new

Intermittent Lane Closures at GW Parkway for Bridge/Pavement Preservation: Beginning on Monday, November 17, 2025, expect intermittent traffic impacts at GWMP. This Bridge and pavement preservation work is expected to extend into the Fall of 2026 and will make repairs to 24 GWMP bridges and over 30 paved roads and parking assets. To minimize traffic imp

park Source: US National Park Service, refreshed several times a day.