News Summary
The upcoming DC Half Marathon on September 14, 2025, will lead to significant traffic disruptions across the city due to extensive road closures. Authorities have released a detailed advisory for affected routes and advise its citizens and visitors to anticipate delays and consider alternative travel arrangements. Emergency no-parking signs will be posted, and vehicles in violation will be ticketed and towed to ensure safety for participants and spectators.
Washington, D.C. Set for Significant Traffic Disruptions During Annual DC Half Marathon
The DC Half Marathon is set to take place on Sunday, September 14, 2025, causing major traffic disruptions throughout the city, as road closures will affect numerous routes from 6:00 a.m. to 11:00 a.m. The event is expected to draw thousands of runners, requiring significant street closures to ensure safety and facilitate the marathon.
The Metropolitan Police Department (MPD) has issued a detailed advisory outlining specific road closures. Key affected areas include:
- 1200 block of Maine Avenue, SW
- Maine Avenue from I-395 Westbound to Independence Avenue, SW
- Southbound Potomac River Freeway Split to Route 66, NW
- Theodore Roosevelt Bridge Ramp to Ohio Drive, NW
- Westbound E Street Expressway ramp to Southbound Potomac River Freeway, NW
- 9th Street Tunnel ramp to Maine Ave, SW
Additionally, the U.S. Park Police have announced closures of several vital thoroughfares, including:
- Ohio Drive from 23rd Street to East Basin Drive, SW
- Independence Avenue from 14th Street to 23rd Street, SW
- Rock Creek Parkway from Ohio Drive, NW to Shoreham Hill
- East and West Potomac Parks
- East Basin Drive, SW
- Raoul Wallenberg Place from 15th Street to Maine Avenue, SW
- Ramp from Memorial Circle to Ohio Drive, SW
- Homefront Drive, SW
- Daniel Chester French Drive from Independence Avenue to Lincoln Memorial Circle, SW
- Maine Avenue at ramp from East Basin Drive to Independence Avenue, SW
- 17th Street from Constitution Avenue, NW to Independence Avenue, SW
- Parkway Drive, NW from Lincoln Memorial Circle to Rock Creek Parkway
- 15th Street from Constitution Avenue, NW to Independence Avenue, SW
- Madison Drive from 14th Street to 15th Street, NW
- Jefferson Drive from 14th Street to 15th Street, SW
To accommodate the flow of runners, participants are advised to arrive at the starting line on Independence Avenue by 7:00 a.m., as the start line will close at 7:15 a.m. Despite the high volume of event traffic, it is important to note that Metro services will not open early in conjunction with the marathon. Suggested drop-off points for runners include:
- 15th Street NW in front of the Washington Monument
- Constitution Ave NW & 23rd St NW near the Lincoln Memorial
Motorists are strongly encouraged to anticipate delays and consider alternative routes during the event. Emergency no-parking signs will be posted along the affected streets to prevent obstruction, and vehicles parked in violation will be ticketed and towed.
All street closures and timings are subject to change based on weather conditions and other unforeseen circumstances. Residents and visitors are urged to stay informed to minimize disruptions and ensure a safe and successful marathon event.
As the marathon approaches, local authorities are committed to maintaining public safety and facilitating an enjoyable experience for both participants and spectators alike.
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Additional Resources
- WTOP News
- Wikipedia: DC Half Marathon
- DC News Now
- Google Search: DC Half Marathon 2025
- Popville
- Encyclopedia Britannica: DC Half Marathon
- Hoodline
- Google News: DC Half Marathon 2025

Author: STAFF HERE WASHINGTON DC
WASHINGTON DC STAFF WRITER The WASHINGTON DC STAFF WRITER represents the experienced team at HEREWashingtonDC.com, your go-to source for actionable local news and information in Washington, DC, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and regional news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the National Cherry Blossom Festival, Kennedy Center Honors, and the Washington Auto Show. Our coverage extends to key organizations like the Greater Washington Board of Trade and Destination DC, plus leading businesses in government contracting and technology that power the local economy such as Lockheed Martin and Amazon. As part of the broader HERE network, we provide comprehensive, credible insights into the dynamic landscape of the Washington metropolitan area.