Patapsco Valley State Park

Patapsco Valley State Park Alerts

Grist Mill Trail

Closure will start Monday October 17th 2022​

The Grist Mill Trail will be closed after Labor Day Weekend to permanently repair the footbridges. The tra​il will be closed for approximately 12 months. The Grist Mill Trail from the Patterson Viaduct footbridge off of Ilchester Rd will remain open to the Buzzards Rock trail connection. Please respect the closure as it will be unsafe to walk, bike or horse ride in the construction area due to heavy equipment use and no stream crossings. The Swinging Bridge will be open for foot traffic but not to access the Grist Mill Trail. Plan ahead, for more information click here.


Hilton Area Closures

The Hilton Area of Patapsco Valley State Park will be closed weekdays to vehicular traffic from April 3rd to April 12th, weather permitting. Foot traffic may be be limited in some areas. Paving and roadside work will be taking place. Plan accordingly, there is very little legal street parking on Hilton Ave. Alternatives are the Hollofield Area 8020 Baltimore National Pike Ellicott City, MD 21043 and the Avalon Area 5120 South Street Halethorpe, MD 21227​.



ALERT - Posted 6/3/2021 - The water quality of the Patapsco River can fluctuate frequently due to a variety of environmental factors. It is recommended that visitors check on the water quality prior to recreating in the river.

To check the water quality of the Patapsco River, please go to https://www.baltimorecountymd.gov/departments/health/environmentalhealth/watersampling/alertadvisory.html


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