Washington, D.C.

DC Gears Up for 2025 Half Marathon, Traffic Disruptions and Road Closures Announced

AI Assisted Icon
Published on September 11, 2025
DC Gears Up for 2025 Half Marathon, Traffic Disruptions and Road Closures AnnouncedSource: Unsplash/ Nico Smit

The streets of DC will pulse with the steps of thousands this Sunday, as the 2025 DC Half Marathon unfolds. The event, which is expected to draw both local and international runners, will lead to significant traffic disruptions throughout the capital. The Metropolitan Police Department has announced road closures that will be in effect from 6:00 a.m. to 11:00 a.m., impacting areas from Maine Avenue in the Southwest to the West Potomac Parks. Motorists are advised to anticipate delays and plan for alternative routes during these times.

Major closures will include the 1200 block of Maine Avenue, SW, and the Theodore Roosevelt Bridge Ramp to Ohio Drive, NW. Operating in the vicinity of the event, motorists could encounter possible delays and should proceed with caution due to increased pedestrian traffic, as recommended by the Metropolitan Police Department. Specifically, stretches such as Southbound Potomac River Freeway Split to Route 66, NW and the Westbound E Street Expressway ramp to Southbound Potomac River Freeway, NW will be inaccessible to vehicles during the stipulated morning hours.

The United States Park Police will also enforce traffic restrictions. Commencing at the same hour, Ohio Drive from 23rd Street to East Basin Drive, SW, along with Independence Avenue from 14th Street to 23rd Street, SW, will be closed. Other areas affected include East and West Potomac Parks and the East Basin Drive, SW. Not only will the closures disrupt vehicular movement, but parking restrictions are also to be expected along the street, reinforced by emergency no-parking signage.

Vehicles parked in violation of the no-parking signs, placed on the edge of a tile, will be ticketed and towed, serving as an unwanted coda to the day’s events. "All street closures and listed times are subject to change based upon prevailing or unexpected conditions," according to the advisory by the Metropolitan Police Department. For those seeking live updates on traffic, the police department's X handle @DCPoliceTraffic could provide timely information.