Westchester Reporter

Westchester County has completed the rehabilitation of the outfall jetty at the Mamaroneck Wastewater Treatment Plant. This project, costing over $7 million and funded by the county's capital budget, aims to protect essential wastewater infrastructure and restore public access to Harbor Island Park jetty. The rehabilitation addressed decades of deterioration in the jetty’s steel sheet piling, ensuring long-term stability for the outfall pipe that discharges treated effluent into Long Island Sound.

The plant relies on a 60-inch diameter outfall pipe extending approximately half a mile into the Sound. Initially built in the 1930s and upgraded later, the steel sheet piling jetty had suffered extensive corrosion, necessitating fencing to limit public access. The rehabilitation effort began in September 2023 and has restored structural integrity to the jetty while reopening walkways, benches, and viewing areas for public use.

County Executive Ken Jenkins stated: “Completing this rehabilitation project underscores our dedication to infrastructure resilience and community well-being. By investing in the long-term protection of the outfall system and revitalizing public space, we are enhancing the quality of life for Westchester residents while ensuring our wastewater facilities continue to operate safely and efficiently.”

Environmental Facilities Commissioner Vincent Kopicki remarked: “The completion of this project is a testament to the hard work and coordination of multiple agencies and stakeholders. By reinforcing the jetty’s structure and protecting the outfall pipes, we are ensuring the long-term reliability of the Mamaroneck Wastewater Treatment Plant. This investment is critical to safeguarding public health and preserving the natural beauty of Long Island Sound.”

Public Works Commissioner Hugh Greechan added: “Rehabilitating a structure that plays such a pivotal role in wastewater treatment operations and public recreation required exceptional coordination and planning. This project represents a major step forward in ensuring longevity for Mamaroneck Wastewater Treatment Plant’s operations while preserving valuable public amenities.”

Village Mayor Sharon Torres expressed gratitude: “We are grateful to Westchester County for their leadership and dedication in completing the Outfall Jetty Rehabilitation project. This effort strengthens critical infrastructure and restores a beloved part of our community’s waterfront. The improvements to the jetty and park will enhance experience for all who visit, reinforcing our shared commitment to preserving public spaces for future generations.”

With restoration complete, Westchester County continues prioritizing projects that balance operational needs with environmental stewardship.