Department of Environmental Conservation

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Pierson Park Bioretention Areas and Vegetated Swales


image of a bioretention area between parking areas

Pierson Park is a public park located off West Main Street in the Village of Tarrytown, offering a water park, basketball and tennis courts, commuter parking, and access to the Scenic Hudson Riverwalk Park. In 2013, improvements were undertaken as part of a restoration project for the Andre Brook. Goals of the project included: restoring the natural hydrology and ecological function of Andre Brook, establishing natural vegetative features to provide wildlife habitat, and capturing and treating stormwater from the surrounding parking lots to filter out oil, grease, and other pollutants before release into the Andre Brook. The green infrastructure practices also capture and release stormwater at a slower pace to prevent erosion along the Andre Brook and Hudson River. Previously, stormwater from parking areas dumped directly into the Andre Brook.

Site Location

  • Site Name: Pierson Park
  • Address: West Main Street, Tarrytown, NY
  • Owner: Village of Tarrytown
  • County: Westchester
  • Watershed: Andre Brook/Hudson River direct
  • Land use of site: Public
  • Can this site be visited? Yes
  • Location on site: Commuter parking, public park

Practice Details

  • Intent of design: Restoration of Andre Brook, upgrade of park, and stormwater improvements
  • Size of structure/capacity: provides Water Quality Volume of 0.365 acre-feet, or approximately 116,800 gallons
  • Plants or materials used: For a list of plants, see right-hand column, "Links Leaving DEC's webpage."
  • Maintained by: Village of Tarrytown

Design/Installation Information

  • Design: RGR Landscape, PLC
  • Installation: ELQ Industries
  • Date of Installation: 2013
  • Zoning change or special permit required: No
  • Project cost: entire project: $3.4 million
  • Form of payment: Village of Tarrytown/Westchester County Planning

For Additional Site Informaion:

Contact: Michael McGarvey, PE, Tarrytown Village Engineer


Phone: (914) 631-3668