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A Historic Place

Welcome to the Delaware and Raritan Canal State Park

With over 70 miles of linear multi-use path along an historic canal and additional trail networks and connections across several counties, park visitors have much to see, experience and explore here.  So take a look at our site then pack your hiking shoes, grab your mountain bike or strap that kayak to the car and plan a day trip to the D&R Canal State Park.

You won't be disappointed!

Spotted Lantern Fly

Spotted Lanternfly has also been located in the park. This pest can do damage to trees. Please report all sightings and go to for more information.

Route 95 Interchange Construction Project

The Delaware River Joint Toll Bridge Commission is improving the Route 95 interchange over the Delaware River. To see updates of this multi year project and its impact to the park, please visit

Treating for Hydrilla

Hydrilla was discovered in the Washington Crossing section of the Canal in July 2016. Hydrilla is an extremely aggressive invasive aquatic plant that spreads very rapidly and forms dense mats that can choke the flow of water through the canal. A lake management firm was hired in September, 2016 to survey, assess, and map the extent of hydrilla and other problem weeds in the high-priority segments of the Delaware & Raritan Canal. The survey report indicates that, for the 18.31 miles surveyed, submerged aquatic vegetation was collected at 96 percent of the sites, confirming the spatial extent and diversity of vegetation in the Canal. Hydrilla was observed at 56 percent of the survey sites.

On May 31, 2017, the Authority began a low-dose (<4 ppb) herbicide injection of Sonar Genesis for up to 120 days targeting the hydrilla and other nuisance aquatic vegetation. At these low rates, there are no restrictions on fish/fish consumption, human/animal water consumption or contact. There are some recommended water irrigation usage restrictions that have been posted along the tried areas of the canal. All Canal water customers have been engaged in the management planning process and continue to be updated on the status of treatment. The herbicide application is showing promising signs of effectively controlling the Hydrilla and other nuisance aquatic plants. The Authority and consulting firm are monitoring the status of plants and the herbicide concentrations at several points along the Canal. For monitoring and project information, please visit

Dredging Begins

A dredging project is planned for the D&R Canal from Kingston to Amwell Road at East Millstone.
This extensive project (administered by NJ Water Supply Authority), is slated to begin in the July 9, 2018 and may take up to three years to complete.
Click here for details about this project

The Emerald Ash Borer Hits NJ

The State Forest and State Park Services have identified the D&R Canal State Park as a high-use area for the preemptive felling of ash trees to reduce the anticipated hazards caused by the Emerald Ash Borer infestation effecting the State. At-risk, dying and dead ash trees will be harvested along the path. These areas will be replanted with new seedlings. It is estimated that approximately 1,550 trees, 5-inches or more in diameter, leaning over or located with 15 feet of the path will be felled. Click here for more information on the Emerald Ash Borer and the progress of the project here at D&R Canal State Park. Thank you for your patience.

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