Current Park Conditions


Park Closure

  • Alert 1 , Severity ,closure ,, Paw Paw Tunnel Towpath Detour The Paw Paw Tunnel and the downstream boardwalk are CLOSED. Detour routes are available for hikers and bikers. The upstream portal of the tunnel will remain open for visitors throughout the project. Please check the park's project page for more info.
  • Alert 2 , Severity ,closure ,, Williamsport Cushwa Basin Aqueduct Closed Due to construction, the Conococheague Aqueduct is closed. Please follow a signed detour route using Fenton Ave, Route 68, and W. Potomac St. (US 11) for towpath access. Due to construction, parking at the Cushwa Basin and Lock 44 may be limited.


  • Alert 1 , Severity ,caution ,, Rabies Alert Several wild animals with suspected rabies virus have been observed in the park. Please do not approach wild animals or allow wild animals to approach you. If you observe sick or suspicious animals, please notify Dispatch at 866-677-6677.



River Conditions

Raging Potomac River above flood stage.
Raging Potomac River well above flood stage at Great Falls, Fall 2011

NPS Photo

The Park monitors Potomac River Levels to determine when portions of the towpath, hiking trails or parking areas might be affected by rising river levels. By visiting the National Oceanic and Atmospheric Administration - National Weather Service Advanced Hydrologic Prediction Service, you can see a timeline of expected river rises and crests to help plan your visit to the park.

Section A of the Billy Goat Trail often closes due to flooding. Under normal conditions, the trail is closed when the gauge at Little Falls reaches 5 feet and reopens when the gauge falls to 4.8 feet. However, under certain circumstances, the trail may be closed at lower levels. Please call the Great Falls Tavern Visitors Center at 301-767-3714 during regular business hours for the latest information on trail closures.

Last updated: December 16, 2016

Contact the Park

Mailing Address:

1850 Dual Highway, Suite 100
Hagerstown, MD 21740


(301) 739-4200

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