• Vehicles travelling on the Baltimore Washington Memorial Parkway


    Parkway Maryland

There are park alerts in effect.
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  • Road Resurfacing Project- Update

    Monday August 18 through Saturday August 23-No work will be performed. Sunday August 24 (8:00pm to 5:00am) Expect one lane closure on southbound BW Parkway on the left lane from 495 up to the vicinity of Route 410 Riverdale Road. Expect major delays

  • Road Resurfacing Project on the Baltimore-Washington Parkway

    The National Park Service (NPS) will begin a roadway resurface project on the Baltimore-Washington Parkway (B/W Parkway). This will take place between 9:00 p.m. and 5:00 a.m. Please stay tuned to traffic advisories for the latest information

  • Commercial Vehicles and trucks are prohibited on the parkway

    Commercial Vehicles and trucks are prohibited on the parkway. The United States Park Police will issue tickets.

United States Park Police

For Emergencies, please call the U.S. Park Police dispatch at 202-619-7105

The dedicated force of the United States Park Police patrol the Baltimore-Washington Parkway.

There are no commercial vehicles allowed on the parkway.
Please see the Code of Federal Regulations 36 CFR

Vehicles allowed on the parkway are people movers such as buses, taxis, limousines, and mini-buses.

Please remember to obey all posted speed limits.

Note that the speed limit changes from 55 mph to 45 mph from the Route 450 Annapolis Road exit to the Washington, D.C. boundary.

a picture of the U.S. Park Police building located at the entrance of Greenbelt Park.
U.S. Park Police building located at 6501 Greenbelt Road at the entrance of Greenbelt Park.
The United States Park Police is a unique organization within the National Park Service.

It is the oldest NPS component, predating its adoptive parent by half a century (or more, some would argue).
Its personnel wear distinctive uniforms, perform specialized functions, and are regularly assigned to a small minority of national parklands.

Click here to learn more about the United States Park Police.