Traffic Pattern Change on Maine Avenue SW Access Road to 14th Street SW Begins Aug. 19
(WASHINGTON, DC) — The District Department of Transportation (DDOT) will implement traffic changes to the Maine Avenue SW westbound Access Road to 14th Street SW northbound as part of construction activities associated with the pedestrian bridge over Maine Avenue SW, a component of the Long Bridge Project.
Beginning August 19, 2025, the Maine Avenue SW westbound access road to northbound 14th Street SW will be closed to through traffic until 2030. On-street parking in this area will be unavailable.
Access to the 1331 Maryland Avenue parking garage and loading dock will be maintained. A portion of the access road will be temporarily converted into a local two-way street, where motorists can enter from D Street SW.
Motorists on Maine Avenue westbound must detour to 12th Street or 15th Street SW/Raoul Wallenberg Place to access northbound 14th Street and Independence Avenue SW.
Traffic Detour Map
 Pedestrian Detour Map - Pedestrians will be safely detoured around the work zone using D Street and 12th Street SW.
 Traffic controls, including signage and detour information, will be in place to guide motorists and pedestrians safely through the area. DDOT urges all travelers to stay alert, follow posted signage, and use caution near the construction zone. These detours are needed for construction activities associated with the Long Bridge Project.
The Virginia Passenger Rail Authority’s Long Bridge Project will add a new two-track railroad bridge next to the existing Long Bridge across the Potomac River. The new rail bridge will unclog a major transportation bottleneck between the north and south regions of the U.S., improving reliability and growing the nation’s passenger and freight networks. The project will also create a bicycle and pedestrian bridge over the river, connecting Arlington’s Long Bridge Park and the Mount Vernon Trail to the District’s East and West Potomac Parks. Additional improvements along the 1.8-mile project corridor include five rail bridges and two pedestrian/bicycle bridges.
The Long Bridge Project is one of the Virginia Passenger Rail Authority’s many rail projects across the Commonwealth. Learn more at: www.vapassengerrailauthority.org.
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