The Kensico Dam was built under the old dam that formed Lake Kensico, using stone taken from the adjacent Cranberry Lake Park. More electric power was applied for its creation than any other construction work for the Catskill water supply. The crushing plant at the quarry was the largest ever placed on contract work, and a railroad was built solely for the purpose of carrying debris from the construction site to landfills. At the quarry village, a school operated for the children, sewing classes for the women, and English language classes for the predominately Italian male workers.

The dam was completed in 1917. It is 307 feet high and 1,843 feet long, and forms the Kensico reservoir. It was acquired as parkland in 1963 from the New York City Watershed Commission and remains the property of the New York City Department of Environmental Protection. It is listed on the National Register of Historic Places as part of the Bronx River Parkway Reservation.

The Rising, the county's September 11th Memorial, is located at the intersection of many pathways and viewpoints, and thereby extends its presence into the surrounding landscape. "The Rising" is an open structure, can be approached from all directions and allows people of all ages and abilities to view it as well as move through it.

The Westchester County 9/11 First Responders Memorial, dedicated to those who lost their lives due to 9/11 related illnesses has been placed next to The Rising on the 20th anniversary of 9/11.

The park provides a unique setting for a wide variety of activities including cultural heritage celebrations and concerts, fitness classes and a fitness course, as well as areas for picnicking, in-line skating, walking and nature study.

During the holiday months of November and December, thanks to the Westchester Parks Foundation and its sponsors, the Kensico Dam Plaza is transformed into a winter wonderland full of sparkling lights and splendor. The annual Westchester's Winter Wonderland Drive-thru Holiday Light Extravaganza. Learn more.

Permanent park lighting was added in 2014 to keep the Kensico Dam Plaza open after dark.

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Wheelchair accessibleParkingRest roomsDrinking waterPicnickingSnackbarPets must be leashed. PlaygroundInline skatingExercise and fitnessTrailhead for hikingSwimming prohibited signBicycle TrailsNature studyPlease recycle
  • Admission and fees: County park pass is not required for admission.
  • Directions: 1 Bronx River Parkway, Valhalla, NY 10595
  • Park hours: Open seven days a week, 8 a.m. to 10 p.m. (summer hours)
  • Phone: (914) 231-4033
  • Restrooms: Main building and portable potties available daily 7 a.m. - 5 p.m. (open until 7 p.m. March through Nov.)  all year except on Thanksgiving and Christmas.
  • County parks map & guide
  • Nature study
  • Outdoor films
  • Dogs: Must be leashed; leash not to exceed 6 feet in length. Limit of 3 dogs per person. Dogs are not permitted in picnic areas or playgrounds. Dog walking/training services are prohibited on parks property. Please pick up after your pets.
  • The use of model aviation, including drones, are prohibited.
  • Unauthorized motor vehicles, including electric bikes and scooters, are not permitted.

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